| // NOTE: Assertions have been autogenerated by utils/update_cc_test_checks.py UTC_ARGS: --version 5 |
| // RUN: %clang_cc1 -std=c++20 -triple=x86_64-linux-gnu -emit-llvm -o - %s | FileCheck %s --check-prefix=LINUX |
| // RUN: %clang_cc1 -std=c++20 -triple=x86_64-pc-windows-msvc -emit-llvm -o - %s | FileCheck %s --check-prefix=WINDOWS |
| |
| |
| struct Empty {}; |
| |
| // LINUX-LABEL: define dso_local void @_Z9testEmptyP5Empty( |
| // LINUX-SAME: ptr noundef [[E:%.*]]) #[[ATTR0:[0-9]+]] { |
| // LINUX-NEXT: [[ENTRY:.*:]] |
| // LINUX-NEXT: [[E_ADDR:%.*]] = alloca ptr, align 8 |
| // LINUX-NEXT: store ptr [[E]], ptr [[E_ADDR]], align 8 |
| // LINUX-NEXT: [[TMP0:%.*]] = load ptr, ptr [[E_ADDR]], align 8 |
| // LINUX-NEXT: [[TMP1:%.*]] = getelementptr i8, ptr [[TMP0]], i32 0 |
| // LINUX-NEXT: store i8 0, ptr [[TMP1]], align 1 |
| // LINUX-NEXT: ret void |
| // |
| // WINDOWS-LABEL: define dso_local void @"?testEmpty@@YAXPEAUEmpty@@@Z"(ptr noundef %e) #0 { |
| // WINDOWS-NEXT: entry: |
| // WINDOWS-NEXT: %e.addr = alloca ptr, align 8 |
| // WINDOWS-NEXT: store ptr %e, ptr %e.addr, align 8 |
| // WINDOWS-NEXT: %0 = load ptr, ptr %e.addr, align 8 |
| // WINDOWS-NEXT: %1 = getelementptr i8, ptr %0, i32 0 |
| // WINDOWS-NEXT: store i8 0, ptr %1, align 1 |
| // WINDOWS-NEXT: ret void |
| // |
| void testEmpty(Empty *e) { |
| // This should clear the one byte that Empty occupies. |
| __builtin_clear_padding(e); |
| } |
| |
| |
| // LINUX-LABEL: define dso_local void @_Z22testPrimitiveNoPaddingPi( |
| // LINUX-SAME: ptr noundef [[I:%.*]]) #[[ATTR0]] { |
| // LINUX-NEXT: [[ENTRY:.*:]] |
| // LINUX-NEXT: [[I_ADDR:%.*]] = alloca ptr, align 8 |
| // LINUX-NEXT: store ptr [[I]], ptr [[I_ADDR]], align 8 |
| // LINUX-NEXT: [[TMP0:%.*]] = load ptr, ptr [[I_ADDR]], align 8 |
| // LINUX-NEXT: ret void |
| // |
| // WINDOWS-LABEL: define dso_local void @"?testPrimitiveNoPadding@@YAXPEAH@Z"(ptr noundef %i) #0 { |
| // WINDOWS-NEXT: entry: |
| // WINDOWS-NEXT: %i.addr = alloca ptr, align 8 |
| // WINDOWS-NEXT: store ptr %i, ptr %i.addr, align 8 |
| // WINDOWS-NEXT: %0 = load ptr, ptr %i.addr, align 8 |
| // WINDOWS-NEXT: ret void |
| // |
| void testPrimitiveNoPadding(int *i) { |
| // This should not clear any padding, since int has no padding. |
| __builtin_clear_padding(i); |
| } |
| |
| |
| // LINUX-LABEL: define dso_local void @_Z23testPrimitiveLongDoublePe( |
| // LINUX-SAME: ptr noundef [[LD:%.*]]) #[[ATTR0]] { |
| // LINUX-NEXT: [[ENTRY:.*:]] |
| // LINUX-NEXT: [[LD_ADDR:%.*]] = alloca ptr, align 8 |
| // LINUX-NEXT: store ptr [[LD]], ptr [[LD_ADDR]], align 8 |
| // LINUX-NEXT: [[TMP0:%.*]] = load ptr, ptr [[LD_ADDR]], align 8 |
| // LINUX-NEXT: [[TMP1:%.*]] = getelementptr i8, ptr [[TMP0]], i32 10 |
| // LINUX-NEXT: store i8 0, ptr [[TMP1]], align 2 |
| // LINUX-NEXT: [[TMP2:%.*]] = getelementptr i8, ptr [[TMP0]], i32 11 |
| // LINUX-NEXT: store i8 0, ptr [[TMP2]], align 1 |
| // LINUX-NEXT: [[TMP3:%.*]] = getelementptr i8, ptr [[TMP0]], i32 12 |
| // LINUX-NEXT: store i8 0, ptr [[TMP3]], align 4 |
| // LINUX-NEXT: [[TMP4:%.*]] = getelementptr i8, ptr [[TMP0]], i32 13 |
| // LINUX-NEXT: store i8 0, ptr [[TMP4]], align 1 |
| // LINUX-NEXT: [[TMP5:%.*]] = getelementptr i8, ptr [[TMP0]], i32 14 |
| // LINUX-NEXT: store i8 0, ptr [[TMP5]], align 2 |
| // LINUX-NEXT: [[TMP6:%.*]] = getelementptr i8, ptr [[TMP0]], i32 15 |
| // LINUX-NEXT: store i8 0, ptr [[TMP6]], align 1 |
| // LINUX-NEXT: ret void |
| // |
| // WINDOWS-LABEL: define dso_local void @"?testPrimitiveLongDouble@@YAXPEAO@Z"(ptr noundef %ld) #0 { |
| // WINDOWS-NEXT: entry: |
| // WINDOWS-NEXT: %ld.addr = alloca ptr, align 8 |
| // WINDOWS-NEXT: store ptr %ld, ptr %ld.addr, align 8 |
| // WINDOWS-NEXT: %0 = load ptr, ptr %ld.addr, align 8 |
| // WINDOWS-NEXT: ret void |
| // |
| void testPrimitiveLongDouble(long double *ld) { |
| // padding [10, 15] on x86 |
| __builtin_clear_padding(ld); |
| } |
| |
| // LINUX-LABEL: define dso_local void @_Z10testBitIntPDB97_( |
| // LINUX-SAME: ptr noundef [[BI:%.*]]) #[[ATTR0]] { |
| // LINUX-NEXT: [[ENTRY:.*:]] |
| // LINUX-NEXT: [[BI_ADDR:%.*]] = alloca ptr, align 8 |
| // LINUX-NEXT: store ptr [[BI]], ptr [[BI_ADDR]], align 8 |
| // LINUX-NEXT: [[TMP0:%.*]] = load ptr, ptr [[BI_ADDR]], align 8 |
| // LINUX-NEXT: [[TMP1:%.*]] = getelementptr i8, ptr [[TMP0]], i32 12 |
| // LINUX-NEXT: [[TMP2:%.*]] = load i8, ptr [[TMP1]], align 4 |
| // LINUX-NEXT: [[TMP3:%.*]] = and i8 [[TMP2]], 1 |
| // LINUX-NEXT: store i8 [[TMP3]], ptr [[TMP1]], align 4 |
| // LINUX-NEXT: [[TMP4:%.*]] = getelementptr i8, ptr [[TMP0]], i32 13 |
| // LINUX-NEXT: store i8 0, ptr [[TMP4]], align 1 |
| // LINUX-NEXT: [[TMP5:%.*]] = getelementptr i8, ptr [[TMP0]], i32 14 |
| // LINUX-NEXT: store i8 0, ptr [[TMP5]], align 2 |
| // LINUX-NEXT: [[TMP6:%.*]] = getelementptr i8, ptr [[TMP0]], i32 15 |
| // LINUX-NEXT: store i8 0, ptr [[TMP6]], align 1 |
| // LINUX-NEXT: ret void |
| // |
| // WINDOWS-LABEL: define dso_local void @"?testBitInt@@YAXPEAU?$_BitInt@$0GB@@__clang@@@Z"(ptr noundef %bi) #0 { |
| // WINDOWS-NEXT: entry: |
| // WINDOWS-NEXT: %bi.addr = alloca ptr, align 8 |
| // WINDOWS-NEXT: store ptr %bi, ptr %bi.addr, align 8 |
| // WINDOWS-NEXT: %0 = load ptr, ptr %bi.addr, align 8 |
| // WINDOWS-NEXT: %1 = getelementptr i8, ptr %0, i32 12 |
| // WINDOWS-NEXT: %2 = load i8, ptr %1, align 4 |
| // WINDOWS-NEXT: %3 = and i8 %2, 1 |
| // WINDOWS-NEXT: store i8 %3, ptr %1, align 4 |
| // WINDOWS-NEXT: %4 = getelementptr i8, ptr %0, i32 13 |
| // WINDOWS-NEXT: store i8 0, ptr %4, align 1 |
| // WINDOWS-NEXT: %5 = getelementptr i8, ptr %0, i32 14 |
| // WINDOWS-NEXT: store i8 0, ptr %5, align 2 |
| // WINDOWS-NEXT: %6 = getelementptr i8, ptr %0, i32 15 |
| // WINDOWS-NEXT: store i8 0, ptr %6, align 1 |
| // WINDOWS-NEXT: ret void |
| // |
| void testBitInt(_BitInt(97) *bi) { |
| // Storage is widened to 128 bits; clear bits [97, 128). |
| __builtin_clear_padding(bi); |
| } |
| |
| |
| // LINUX-LABEL: define dso_local void @_Z30testPrimitiveComplexLongDoublePCe( |
| // LINUX-SAME: ptr noundef [[C:%.*]]) #[[ATTR0]] { |
| // LINUX-NEXT: [[ENTRY:.*:]] |
| // LINUX-NEXT: [[C_ADDR:%.*]] = alloca ptr, align 8 |
| // LINUX-NEXT: store ptr [[C]], ptr [[C_ADDR]], align 8 |
| // LINUX-NEXT: [[TMP0:%.*]] = load ptr, ptr [[C_ADDR]], align 8 |
| // LINUX-NEXT: [[TMP1:%.*]] = getelementptr i8, ptr [[TMP0]], i32 10 |
| // LINUX-NEXT: store i8 0, ptr [[TMP1]], align 2 |
| // LINUX-NEXT: [[TMP2:%.*]] = getelementptr i8, ptr [[TMP0]], i32 11 |
| // LINUX-NEXT: store i8 0, ptr [[TMP2]], align 1 |
| // LINUX-NEXT: [[TMP3:%.*]] = getelementptr i8, ptr [[TMP0]], i32 12 |
| // LINUX-NEXT: store i8 0, ptr [[TMP3]], align 4 |
| // LINUX-NEXT: [[TMP4:%.*]] = getelementptr i8, ptr [[TMP0]], i32 13 |
| // LINUX-NEXT: store i8 0, ptr [[TMP4]], align 1 |
| // LINUX-NEXT: [[TMP5:%.*]] = getelementptr i8, ptr [[TMP0]], i32 14 |
| // LINUX-NEXT: store i8 0, ptr [[TMP5]], align 2 |
| // LINUX-NEXT: [[TMP6:%.*]] = getelementptr i8, ptr [[TMP0]], i32 15 |
| // LINUX-NEXT: store i8 0, ptr [[TMP6]], align 1 |
| // LINUX-NEXT: [[TMP7:%.*]] = getelementptr i8, ptr [[TMP0]], i32 26 |
| // LINUX-NEXT: store i8 0, ptr [[TMP7]], align 2 |
| // LINUX-NEXT: [[TMP8:%.*]] = getelementptr i8, ptr [[TMP0]], i32 27 |
| // LINUX-NEXT: store i8 0, ptr [[TMP8]], align 1 |
| // LINUX-NEXT: [[TMP9:%.*]] = getelementptr i8, ptr [[TMP0]], i32 28 |
| // LINUX-NEXT: store i8 0, ptr [[TMP9]], align 4 |
| // LINUX-NEXT: [[TMP10:%.*]] = getelementptr i8, ptr [[TMP0]], i32 29 |
| // LINUX-NEXT: store i8 0, ptr [[TMP10]], align 1 |
| // LINUX-NEXT: [[TMP11:%.*]] = getelementptr i8, ptr [[TMP0]], i32 30 |
| // LINUX-NEXT: store i8 0, ptr [[TMP11]], align 2 |
| // LINUX-NEXT: [[TMP12:%.*]] = getelementptr i8, ptr [[TMP0]], i32 31 |
| // LINUX-NEXT: store i8 0, ptr [[TMP12]], align 1 |
| // LINUX-NEXT: ret void |
| // |
| // WINDOWS-LABEL: define dso_local void @"?testPrimitiveComplexLongDouble@@YAXPEAU?$_Complex@O@__clang@@@Z"(ptr noundef %c) #0 { |
| // WINDOWS-NEXT: entry: |
| // WINDOWS-NEXT: %c.addr = alloca ptr, align 8 |
| // WINDOWS-NEXT: store ptr %c, ptr %c.addr, align 8 |
| // WINDOWS-NEXT: %0 = load ptr, ptr %c.addr, align 8 |
| // WINDOWS-NEXT: ret void |
| // |
| void testPrimitiveComplexLongDouble(_Complex long double *c) { |
| // padding [10, 15] and [26, 31] on x86 |
| __builtin_clear_padding(c); |
| } |
| |
| union U1 { |
| int i; |
| char c; |
| }; |
| |
| // LINUX-LABEL: define dso_local void @_Z24testUnionDifferentLengthP2U1( |
| // LINUX-SAME: ptr noundef [[U:%.*]]) #[[ATTR0]] { |
| // LINUX-NEXT: [[ENTRY:.*:]] |
| // LINUX-NEXT: [[U_ADDR:%.*]] = alloca ptr, align 8 |
| // LINUX-NEXT: store ptr [[U]], ptr [[U_ADDR]], align 8 |
| // LINUX-NEXT: [[TMP0:%.*]] = load ptr, ptr [[U_ADDR]], align 8 |
| // LINUX-NEXT: ret void |
| // |
| // WINDOWS-LABEL: define dso_local void @"?testUnionDifferentLength@@YAXPEATU1@@@Z"(ptr noundef %u) #0 { |
| // WINDOWS-NEXT: entry: |
| // WINDOWS-NEXT: %u.addr = alloca ptr, align 8 |
| // WINDOWS-NEXT: store ptr %u, ptr %u.addr, align 8 |
| // WINDOWS-NEXT: %0 = load ptr, ptr %u.addr, align 8 |
| // WINDOWS-NEXT: ret void |
| // |
| void testUnionDifferentLength(U1 *u) { |
| // This should not clear the object representation bits of the non-active member. |
| __builtin_clear_padding(u); |
| } |
| |
| |
| struct S { |
| alignas(8) char c1; |
| }; |
| |
| union U2 { |
| S s1; |
| char c2; |
| }; |
| |
| // LINUX-LABEL: define dso_local void @_Z35testUnionTailPaddingOfLongestMemberP2U2( |
| // LINUX-SAME: ptr noundef [[U:%.*]]) #[[ATTR0]] { |
| // LINUX-NEXT: [[ENTRY:.*:]] |
| // LINUX-NEXT: [[U_ADDR:%.*]] = alloca ptr, align 8 |
| // LINUX-NEXT: store ptr [[U]], ptr [[U_ADDR]], align 8 |
| // LINUX-NEXT: [[TMP0:%.*]] = load ptr, ptr [[U_ADDR]], align 8 |
| // LINUX-NEXT: [[TMP1:%.*]] = getelementptr i8, ptr [[TMP0]], i32 1 |
| // LINUX-NEXT: store i8 0, ptr [[TMP1]], align 1 |
| // LINUX-NEXT: [[TMP2:%.*]] = getelementptr i8, ptr [[TMP0]], i32 2 |
| // LINUX-NEXT: store i8 0, ptr [[TMP2]], align 2 |
| // LINUX-NEXT: [[TMP3:%.*]] = getelementptr i8, ptr [[TMP0]], i32 3 |
| // LINUX-NEXT: store i8 0, ptr [[TMP3]], align 1 |
| // LINUX-NEXT: [[TMP4:%.*]] = getelementptr i8, ptr [[TMP0]], i32 4 |
| // LINUX-NEXT: store i8 0, ptr [[TMP4]], align 4 |
| // LINUX-NEXT: [[TMP5:%.*]] = getelementptr i8, ptr [[TMP0]], i32 5 |
| // LINUX-NEXT: store i8 0, ptr [[TMP5]], align 1 |
| // LINUX-NEXT: [[TMP6:%.*]] = getelementptr i8, ptr [[TMP0]], i32 6 |
| // LINUX-NEXT: store i8 0, ptr [[TMP6]], align 2 |
| // LINUX-NEXT: [[TMP7:%.*]] = getelementptr i8, ptr [[TMP0]], i32 7 |
| // LINUX-NEXT: store i8 0, ptr [[TMP7]], align 1 |
| // LINUX-NEXT: ret void |
| // |
| // WINDOWS-LABEL: define dso_local void @"?testUnionTailPaddingOfLongestMember@@YAXPEATU2@@@Z"(ptr noundef %u) #0 { |
| // WINDOWS-NEXT: entry: |
| // WINDOWS-NEXT: %u.addr = alloca ptr, align 8 |
| // WINDOWS-NEXT: store ptr %u, ptr %u.addr, align 8 |
| // WINDOWS-NEXT: %0 = load ptr, ptr %u.addr, align 8 |
| // WINDOWS-NEXT: %1 = getelementptr i8, ptr %0, i32 1 |
| // WINDOWS-NEXT: store i8 0, ptr %1, align 1 |
| // WINDOWS-NEXT: %2 = getelementptr i8, ptr %0, i32 2 |
| // WINDOWS-NEXT: store i8 0, ptr %2, align 2 |
| // WINDOWS-NEXT: %3 = getelementptr i8, ptr %0, i32 3 |
| // WINDOWS-NEXT: store i8 0, ptr %3, align 1 |
| // WINDOWS-NEXT: %4 = getelementptr i8, ptr %0, i32 4 |
| // WINDOWS-NEXT: store i8 0, ptr %4, align 4 |
| // WINDOWS-NEXT: %5 = getelementptr i8, ptr %0, i32 5 |
| // WINDOWS-NEXT: store i8 0, ptr %5, align 1 |
| // WINDOWS-NEXT: %6 = getelementptr i8, ptr %0, i32 6 |
| // WINDOWS-NEXT: store i8 0, ptr %6, align 2 |
| // WINDOWS-NEXT: %7 = getelementptr i8, ptr %0, i32 7 |
| // WINDOWS-NEXT: store i8 0, ptr %7, align 1 |
| // WINDOWS-NEXT: ret void |
| // |
| void testUnionTailPaddingOfLongestMember(U2 *u) { |
| // This should clear the tail padding of the longest member. |
| // [1 - 7] |
| __builtin_clear_padding(u); |
| } |
| |
| |
| struct alignas(4) Foo { |
| char a; |
| alignas(2) char b; |
| }; |
| |
| struct alignas(4) Bar { |
| char c; |
| alignas(2) char d; |
| }; |
| |
| struct alignas(4) Baz : Foo { |
| char e; |
| Bar f; |
| }; |
| |
| // Baz structure: |
| // "a", PAD_1, "b", PAD_2, "c", PAD_3, PAD_4, PAD_5, "c", PAD_6, "d", PAD_7 |
| // %struct.Baz = type { %struct.Foo, i8, [3 x i8], %struct.Bar } |
| // %struct.Foo = type { i8, i8, i8, i8 } |
| // %struct.Bar = type { i8, i8, i8, i8 } |
| |
| // LINUX-LABEL: define dso_local void @_Z33testStructPaddingInBetweenMembersP3Baz( |
| // LINUX-SAME: ptr noundef [[BAZ:%.*]]) #[[ATTR0]] { |
| // LINUX-NEXT: [[ENTRY:.*:]] |
| // LINUX-NEXT: [[BAZ_ADDR:%.*]] = alloca ptr, align 8 |
| // LINUX-NEXT: store ptr [[BAZ]], ptr [[BAZ_ADDR]], align 8 |
| // LINUX-NEXT: [[TMP0:%.*]] = load ptr, ptr [[BAZ_ADDR]], align 8 |
| // LINUX-NEXT: [[TMP1:%.*]] = getelementptr i8, ptr [[TMP0]], i32 1 |
| // LINUX-NEXT: store i8 0, ptr [[TMP1]], align 1 |
| // LINUX-NEXT: [[TMP2:%.*]] = getelementptr i8, ptr [[TMP0]], i32 3 |
| // LINUX-NEXT: store i8 0, ptr [[TMP2]], align 1 |
| // LINUX-NEXT: [[TMP3:%.*]] = getelementptr i8, ptr [[TMP0]], i32 5 |
| // LINUX-NEXT: store i8 0, ptr [[TMP3]], align 1 |
| // LINUX-NEXT: [[TMP4:%.*]] = getelementptr i8, ptr [[TMP0]], i32 6 |
| // LINUX-NEXT: store i8 0, ptr [[TMP4]], align 2 |
| // LINUX-NEXT: [[TMP5:%.*]] = getelementptr i8, ptr [[TMP0]], i32 7 |
| // LINUX-NEXT: store i8 0, ptr [[TMP5]], align 1 |
| // LINUX-NEXT: [[TMP6:%.*]] = getelementptr i8, ptr [[TMP0]], i32 9 |
| // LINUX-NEXT: store i8 0, ptr [[TMP6]], align 1 |
| // LINUX-NEXT: [[TMP7:%.*]] = getelementptr i8, ptr [[TMP0]], i32 11 |
| // LINUX-NEXT: store i8 0, ptr [[TMP7]], align 1 |
| // LINUX-NEXT: ret void |
| // |
| // WINDOWS-LABEL: define dso_local void @"?testStructPaddingInBetweenMembers@@YAXPEAUBaz@@@Z"(ptr noundef %baz) #0 { |
| // WINDOWS-NEXT: entry: |
| // WINDOWS-NEXT: %baz.addr = alloca ptr, align 8 |
| // WINDOWS-NEXT: store ptr %baz, ptr %baz.addr, align 8 |
| // WINDOWS-NEXT: %0 = load ptr, ptr %baz.addr, align 8 |
| // WINDOWS-NEXT: %1 = getelementptr i8, ptr %0, i32 1 |
| // WINDOWS-NEXT: store i8 0, ptr %1, align 1 |
| // WINDOWS-NEXT: %2 = getelementptr i8, ptr %0, i32 3 |
| // WINDOWS-NEXT: store i8 0, ptr %2, align 1 |
| // WINDOWS-NEXT: %3 = getelementptr i8, ptr %0, i32 5 |
| // WINDOWS-NEXT: store i8 0, ptr %3, align 1 |
| // WINDOWS-NEXT: %4 = getelementptr i8, ptr %0, i32 6 |
| // WINDOWS-NEXT: store i8 0, ptr %4, align 2 |
| // WINDOWS-NEXT: %5 = getelementptr i8, ptr %0, i32 7 |
| // WINDOWS-NEXT: store i8 0, ptr %5, align 1 |
| // WINDOWS-NEXT: %6 = getelementptr i8, ptr %0, i32 9 |
| // WINDOWS-NEXT: store i8 0, ptr %6, align 1 |
| // WINDOWS-NEXT: %7 = getelementptr i8, ptr %0, i32 11 |
| // WINDOWS-NEXT: store i8 0, ptr %7, align 1 |
| // WINDOWS-NEXT: ret void |
| // |
| void testStructPaddingInBetweenMembers(Baz *baz) { |
| // this should clear all the padding in between various members |
| __builtin_clear_padding(baz); |
| } |
| |
| // LINUX-LABEL: define dso_local void @_Z18testStructVolatilePV3Baz( |
| // LINUX-SAME: ptr noundef [[BAZ:%.*]]) #[[ATTR0]] { |
| // LINUX-NEXT: [[ENTRY:.*:]] |
| // LINUX-NEXT: [[BAZ_ADDR:%.*]] = alloca ptr, align 8 |
| // LINUX-NEXT: store ptr [[BAZ]], ptr [[BAZ_ADDR]], align 8 |
| // LINUX-NEXT: [[TMP0:%.*]] = load ptr, ptr [[BAZ_ADDR]], align 8 |
| // LINUX-NEXT: [[TMP1:%.*]] = getelementptr i8, ptr [[TMP0]], i32 1 |
| // LINUX-NEXT: store i8 0, ptr [[TMP1]], align 1 |
| // LINUX-NEXT: [[TMP2:%.*]] = getelementptr i8, ptr [[TMP0]], i32 3 |
| // LINUX-NEXT: store i8 0, ptr [[TMP2]], align 1 |
| // LINUX-NEXT: [[TMP3:%.*]] = getelementptr i8, ptr [[TMP0]], i32 5 |
| // LINUX-NEXT: store i8 0, ptr [[TMP3]], align 1 |
| // LINUX-NEXT: [[TMP4:%.*]] = getelementptr i8, ptr [[TMP0]], i32 6 |
| // LINUX-NEXT: store i8 0, ptr [[TMP4]], align 2 |
| // LINUX-NEXT: [[TMP5:%.*]] = getelementptr i8, ptr [[TMP0]], i32 7 |
| // LINUX-NEXT: store i8 0, ptr [[TMP5]], align 1 |
| // LINUX-NEXT: [[TMP6:%.*]] = getelementptr i8, ptr [[TMP0]], i32 9 |
| // LINUX-NEXT: store i8 0, ptr [[TMP6]], align 1 |
| // LINUX-NEXT: [[TMP7:%.*]] = getelementptr i8, ptr [[TMP0]], i32 11 |
| // LINUX-NEXT: store i8 0, ptr [[TMP7]], align 1 |
| // LINUX-NEXT: ret void |
| // |
| // WINDOWS-LABEL: define dso_local void @"?testStructVolatile@@YAXPECUBaz@@@Z"(ptr noundef %baz) #0 { |
| // WINDOWS-NEXT: entry: |
| // WINDOWS-NEXT: %baz.addr = alloca ptr, align 8 |
| // WINDOWS-NEXT: store ptr %baz, ptr %baz.addr, align 8 |
| // WINDOWS-NEXT: %0 = load ptr, ptr %baz.addr, align 8 |
| // WINDOWS-NEXT: %1 = getelementptr i8, ptr %0, i32 1 |
| // WINDOWS-NEXT: store i8 0, ptr %1, align 1 |
| // WINDOWS-NEXT: %2 = getelementptr i8, ptr %0, i32 3 |
| // WINDOWS-NEXT: store i8 0, ptr %2, align 1 |
| // WINDOWS-NEXT: %3 = getelementptr i8, ptr %0, i32 5 |
| // WINDOWS-NEXT: store i8 0, ptr %3, align 1 |
| // WINDOWS-NEXT: %4 = getelementptr i8, ptr %0, i32 6 |
| // WINDOWS-NEXT: store i8 0, ptr %4, align 2 |
| // WINDOWS-NEXT: %5 = getelementptr i8, ptr %0, i32 7 |
| // WINDOWS-NEXT: store i8 0, ptr %5, align 1 |
| // WINDOWS-NEXT: %6 = getelementptr i8, ptr %0, i32 9 |
| // WINDOWS-NEXT: store i8 0, ptr %6, align 1 |
| // WINDOWS-NEXT: %7 = getelementptr i8, ptr %0, i32 11 |
| // WINDOWS-NEXT: store i8 0, ptr %7, align 1 |
| // WINDOWS-NEXT: ret void |
| // |
| void testStructVolatile(volatile Baz *baz) { |
| // this should clear all the padding in between various members |
| __builtin_clear_padding(baz); |
| } |
| |
| class S1 { |
| int x; |
| char c; |
| }; |
| |
| class S2 { |
| [[no_unique_address]] S1 s1; |
| bool b; |
| }; |
| |
| // LINUX-LABEL: define dso_local void @_Z19testNoUniqueAddressP2S2( |
| // LINUX-SAME: ptr noundef [[S:%.*]]) #[[ATTR0]] { |
| // LINUX-NEXT: [[ENTRY:.*:]] |
| // LINUX-NEXT: [[S_ADDR:%.*]] = alloca ptr, align 8 |
| // LINUX-NEXT: store ptr [[S]], ptr [[S_ADDR]], align 8 |
| // LINUX-NEXT: [[TMP0:%.*]] = load ptr, ptr [[S_ADDR]], align 8 |
| // LINUX-NEXT: [[TMP1:%.*]] = getelementptr i8, ptr [[TMP0]], i32 6 |
| // LINUX-NEXT: store i8 0, ptr [[TMP1]], align 2 |
| // LINUX-NEXT: [[TMP2:%.*]] = getelementptr i8, ptr [[TMP0]], i32 7 |
| // LINUX-NEXT: store i8 0, ptr [[TMP2]], align 1 |
| // LINUX-NEXT: ret void |
| // |
| // WINDOWS-LABEL: define dso_local void @"?testNoUniqueAddress@@YAXPEAVS2@@@Z"(ptr noundef %s) #0 { |
| // WINDOWS-NEXT: entry: |
| // WINDOWS-NEXT: %s.addr = alloca ptr, align 8 |
| // WINDOWS-NEXT: store ptr %s, ptr %s.addr, align 8 |
| // WINDOWS-NEXT: %0 = load ptr, ptr %s.addr, align 8 |
| // WINDOWS-NEXT: %1 = getelementptr i8, ptr %0, i32 5 |
| // WINDOWS-NEXT: store i8 0, ptr %1, align 1 |
| // WINDOWS-NEXT: %2 = getelementptr i8, ptr %0, i32 6 |
| // WINDOWS-NEXT: store i8 0, ptr %2, align 2 |
| // WINDOWS-NEXT: %3 = getelementptr i8, ptr %0, i32 7 |
| // WINDOWS-NEXT: store i8 0, ptr %3, align 1 |
| // WINDOWS-NEXT: %4 = getelementptr i8, ptr %0, i32 9 |
| // WINDOWS-NEXT: store i8 0, ptr %4, align 1 |
| // WINDOWS-NEXT: %5 = getelementptr i8, ptr %0, i32 10 |
| // WINDOWS-NEXT: store i8 0, ptr %5, align 2 |
| // WINDOWS-NEXT: %6 = getelementptr i8, ptr %0, i32 11 |
| // WINDOWS-NEXT: store i8 0, ptr %6, align 1 |
| // WINDOWS-NEXT: ret void |
| // |
| void testNoUniqueAddress(S2 *s) { |
| // "x [0-3]", "c" , "b", PAD [6-7] |
| __builtin_clear_padding(s); |
| } |
| |
| struct S3 { |
| long double l; |
| bool b; |
| }; |
| |
| // LINUX-LABEL: define dso_local void @_Z24testStructWithLongDoubleP2S3( |
| // LINUX-SAME: ptr noundef [[S:%.*]]) #[[ATTR0]] { |
| // LINUX-NEXT: [[ENTRY:.*:]] |
| // LINUX-NEXT: [[S_ADDR:%.*]] = alloca ptr, align 8 |
| // LINUX-NEXT: store ptr [[S]], ptr [[S_ADDR]], align 8 |
| // LINUX-NEXT: [[TMP0:%.*]] = load ptr, ptr [[S_ADDR]], align 8 |
| // LINUX-NEXT: [[TMP1:%.*]] = getelementptr i8, ptr [[TMP0]], i32 10 |
| // LINUX-NEXT: store i8 0, ptr [[TMP1]], align 2 |
| // LINUX-NEXT: [[TMP2:%.*]] = getelementptr i8, ptr [[TMP0]], i32 11 |
| // LINUX-NEXT: store i8 0, ptr [[TMP2]], align 1 |
| // LINUX-NEXT: [[TMP3:%.*]] = getelementptr i8, ptr [[TMP0]], i32 12 |
| // LINUX-NEXT: store i8 0, ptr [[TMP3]], align 4 |
| // LINUX-NEXT: [[TMP4:%.*]] = getelementptr i8, ptr [[TMP0]], i32 13 |
| // LINUX-NEXT: store i8 0, ptr [[TMP4]], align 1 |
| // LINUX-NEXT: [[TMP5:%.*]] = getelementptr i8, ptr [[TMP0]], i32 14 |
| // LINUX-NEXT: store i8 0, ptr [[TMP5]], align 2 |
| // LINUX-NEXT: [[TMP6:%.*]] = getelementptr i8, ptr [[TMP0]], i32 15 |
| // LINUX-NEXT: store i8 0, ptr [[TMP6]], align 1 |
| // LINUX-NEXT: [[TMP7:%.*]] = getelementptr i8, ptr [[TMP0]], i32 17 |
| // LINUX-NEXT: store i8 0, ptr [[TMP7]], align 1 |
| // LINUX-NEXT: [[TMP8:%.*]] = getelementptr i8, ptr [[TMP0]], i32 18 |
| // LINUX-NEXT: store i8 0, ptr [[TMP8]], align 2 |
| // LINUX-NEXT: [[TMP9:%.*]] = getelementptr i8, ptr [[TMP0]], i32 19 |
| // LINUX-NEXT: store i8 0, ptr [[TMP9]], align 1 |
| // LINUX-NEXT: [[TMP10:%.*]] = getelementptr i8, ptr [[TMP0]], i32 20 |
| // LINUX-NEXT: store i8 0, ptr [[TMP10]], align 4 |
| // LINUX-NEXT: [[TMP11:%.*]] = getelementptr i8, ptr [[TMP0]], i32 21 |
| // LINUX-NEXT: store i8 0, ptr [[TMP11]], align 1 |
| // LINUX-NEXT: [[TMP12:%.*]] = getelementptr i8, ptr [[TMP0]], i32 22 |
| // LINUX-NEXT: store i8 0, ptr [[TMP12]], align 2 |
| // LINUX-NEXT: [[TMP13:%.*]] = getelementptr i8, ptr [[TMP0]], i32 23 |
| // LINUX-NEXT: store i8 0, ptr [[TMP13]], align 1 |
| // LINUX-NEXT: [[TMP14:%.*]] = getelementptr i8, ptr [[TMP0]], i32 24 |
| // LINUX-NEXT: store i8 0, ptr [[TMP14]], align 8 |
| // LINUX-NEXT: [[TMP15:%.*]] = getelementptr i8, ptr [[TMP0]], i32 25 |
| // LINUX-NEXT: store i8 0, ptr [[TMP15]], align 1 |
| // LINUX-NEXT: [[TMP16:%.*]] = getelementptr i8, ptr [[TMP0]], i32 26 |
| // LINUX-NEXT: store i8 0, ptr [[TMP16]], align 2 |
| // LINUX-NEXT: [[TMP17:%.*]] = getelementptr i8, ptr [[TMP0]], i32 27 |
| // LINUX-NEXT: store i8 0, ptr [[TMP17]], align 1 |
| // LINUX-NEXT: [[TMP18:%.*]] = getelementptr i8, ptr [[TMP0]], i32 28 |
| // LINUX-NEXT: store i8 0, ptr [[TMP18]], align 4 |
| // LINUX-NEXT: [[TMP19:%.*]] = getelementptr i8, ptr [[TMP0]], i32 29 |
| // LINUX-NEXT: store i8 0, ptr [[TMP19]], align 1 |
| // LINUX-NEXT: [[TMP20:%.*]] = getelementptr i8, ptr [[TMP0]], i32 30 |
| // LINUX-NEXT: store i8 0, ptr [[TMP20]], align 2 |
| // LINUX-NEXT: [[TMP21:%.*]] = getelementptr i8, ptr [[TMP0]], i32 31 |
| // LINUX-NEXT: store i8 0, ptr [[TMP21]], align 1 |
| // LINUX-NEXT: ret void |
| // |
| // WINDOWS-LABEL: define dso_local void @"?testStructWithLongDouble@@YAXPEAUS3@@@Z"(ptr noundef %s) #0 { |
| // WINDOWS-NEXT: entry: |
| // WINDOWS-NEXT: %s.addr = alloca ptr, align 8 |
| // WINDOWS-NEXT: store ptr %s, ptr %s.addr, align 8 |
| // WINDOWS-NEXT: %0 = load ptr, ptr %s.addr, align 8 |
| // WINDOWS-NEXT: %1 = getelementptr i8, ptr %0, i32 9 |
| // WINDOWS-NEXT: store i8 0, ptr %1, align 1 |
| // WINDOWS-NEXT: %2 = getelementptr i8, ptr %0, i32 10 |
| // WINDOWS-NEXT: store i8 0, ptr %2, align 2 |
| // WINDOWS-NEXT: %3 = getelementptr i8, ptr %0, i32 11 |
| // WINDOWS-NEXT: store i8 0, ptr %3, align 1 |
| // WINDOWS-NEXT: %4 = getelementptr i8, ptr %0, i32 12 |
| // WINDOWS-NEXT: store i8 0, ptr %4, align 4 |
| // WINDOWS-NEXT: %5 = getelementptr i8, ptr %0, i32 13 |
| // WINDOWS-NEXT: store i8 0, ptr %5, align 1 |
| // WINDOWS-NEXT: %6 = getelementptr i8, ptr %0, i32 14 |
| // WINDOWS-NEXT: store i8 0, ptr %6, align 2 |
| // WINDOWS-NEXT: %7 = getelementptr i8, ptr %0, i32 15 |
| // WINDOWS-NEXT: store i8 0, ptr %7, align 1 |
| // WINDOWS-NEXT: ret void |
| // |
| void testStructWithLongDouble(S3 *s) { |
| // "long double data[0-9]", PAD [10-15], "b", PAD [17-31] |
| __builtin_clear_padding(s); |
| } |
| |
| struct B { |
| int i; |
| }; |
| struct S4 : Empty, B { |
| bool b; |
| }; |
| |
| // LINUX-LABEL: define dso_local void @_Z23testStructWithEmptyBaseP2S4( |
| // LINUX-SAME: ptr noundef [[S:%.*]]) #[[ATTR0]] { |
| // LINUX-NEXT: [[ENTRY:.*:]] |
| // LINUX-NEXT: [[S_ADDR:%.*]] = alloca ptr, align 8 |
| // LINUX-NEXT: store ptr [[S]], ptr [[S_ADDR]], align 8 |
| // LINUX-NEXT: [[TMP0:%.*]] = load ptr, ptr [[S_ADDR]], align 8 |
| // LINUX-NEXT: [[TMP1:%.*]] = getelementptr i8, ptr [[TMP0]], i32 5 |
| // LINUX-NEXT: store i8 0, ptr [[TMP1]], align 1 |
| // LINUX-NEXT: [[TMP2:%.*]] = getelementptr i8, ptr [[TMP0]], i32 6 |
| // LINUX-NEXT: store i8 0, ptr [[TMP2]], align 2 |
| // LINUX-NEXT: [[TMP3:%.*]] = getelementptr i8, ptr [[TMP0]], i32 7 |
| // LINUX-NEXT: store i8 0, ptr [[TMP3]], align 1 |
| // LINUX-NEXT: ret void |
| // |
| // WINDOWS-LABEL: define dso_local void @"?testStructWithEmptyBase@@YAXPEAUS4@@@Z"(ptr noundef %s) #0 { |
| // WINDOWS-NEXT: entry: |
| // WINDOWS-NEXT: %s.addr = alloca ptr, align 8 |
| // WINDOWS-NEXT: store ptr %s, ptr %s.addr, align 8 |
| // WINDOWS-NEXT: %0 = load ptr, ptr %s.addr, align 8 |
| // WINDOWS-NEXT: %1 = getelementptr i8, ptr %0, i32 5 |
| // WINDOWS-NEXT: store i8 0, ptr %1, align 1 |
| // WINDOWS-NEXT: %2 = getelementptr i8, ptr %0, i32 6 |
| // WINDOWS-NEXT: store i8 0, ptr %2, align 2 |
| // WINDOWS-NEXT: %3 = getelementptr i8, ptr %0, i32 7 |
| // WINDOWS-NEXT: store i8 0, ptr %3, align 1 |
| // WINDOWS-NEXT: ret void |
| // |
| void testStructWithEmptyBase(S4 *s) { |
| // "i" [0-3], "b" [4], PAD [5-7] |
| __builtin_clear_padding(s); |
| } |
| |
| struct B1 { |
| char c1; |
| }; |
| struct B2 { |
| alignas(4) char c2; |
| }; |
| struct S5 : B1, B2 { |
| }; |
| |
| // LINUX-LABEL: define dso_local void @_Z23testPaddingBetweenBasesP2S5( |
| // LINUX-SAME: ptr noundef [[S:%.*]]) #[[ATTR0]] { |
| // LINUX-NEXT: [[ENTRY:.*:]] |
| // LINUX-NEXT: [[S_ADDR:%.*]] = alloca ptr, align 8 |
| // LINUX-NEXT: store ptr [[S]], ptr [[S_ADDR]], align 8 |
| // LINUX-NEXT: [[TMP0:%.*]] = load ptr, ptr [[S_ADDR]], align 8 |
| // LINUX-NEXT: [[TMP1:%.*]] = getelementptr i8, ptr [[TMP0]], i32 1 |
| // LINUX-NEXT: store i8 0, ptr [[TMP1]], align 1 |
| // LINUX-NEXT: [[TMP2:%.*]] = getelementptr i8, ptr [[TMP0]], i32 2 |
| // LINUX-NEXT: store i8 0, ptr [[TMP2]], align 2 |
| // LINUX-NEXT: [[TMP3:%.*]] = getelementptr i8, ptr [[TMP0]], i32 3 |
| // LINUX-NEXT: store i8 0, ptr [[TMP3]], align 1 |
| // LINUX-NEXT: [[TMP4:%.*]] = getelementptr i8, ptr [[TMP0]], i32 5 |
| // LINUX-NEXT: store i8 0, ptr [[TMP4]], align 1 |
| // LINUX-NEXT: [[TMP5:%.*]] = getelementptr i8, ptr [[TMP0]], i32 6 |
| // LINUX-NEXT: store i8 0, ptr [[TMP5]], align 2 |
| // LINUX-NEXT: [[TMP6:%.*]] = getelementptr i8, ptr [[TMP0]], i32 7 |
| // LINUX-NEXT: store i8 0, ptr [[TMP6]], align 1 |
| // LINUX-NEXT: ret void |
| // |
| // WINDOWS-LABEL: define dso_local void @"?testPaddingBetweenBases@@YAXPEAUS5@@@Z"(ptr noundef %s) #0 { |
| // WINDOWS-NEXT: entry: |
| // WINDOWS-NEXT: %s.addr = alloca ptr, align 8 |
| // WINDOWS-NEXT: store ptr %s, ptr %s.addr, align 8 |
| // WINDOWS-NEXT: %0 = load ptr, ptr %s.addr, align 8 |
| // WINDOWS-NEXT: %1 = getelementptr i8, ptr %0, i32 1 |
| // WINDOWS-NEXT: store i8 0, ptr %1, align 1 |
| // WINDOWS-NEXT: %2 = getelementptr i8, ptr %0, i32 2 |
| // WINDOWS-NEXT: store i8 0, ptr %2, align 2 |
| // WINDOWS-NEXT: %3 = getelementptr i8, ptr %0, i32 3 |
| // WINDOWS-NEXT: store i8 0, ptr %3, align 1 |
| // WINDOWS-NEXT: %4 = getelementptr i8, ptr %0, i32 5 |
| // WINDOWS-NEXT: store i8 0, ptr %4, align 1 |
| // WINDOWS-NEXT: %5 = getelementptr i8, ptr %0, i32 6 |
| // WINDOWS-NEXT: store i8 0, ptr %5, align 2 |
| // WINDOWS-NEXT: %6 = getelementptr i8, ptr %0, i32 7 |
| // WINDOWS-NEXT: store i8 0, ptr %6, align 1 |
| // WINDOWS-NEXT: ret void |
| // |
| void testPaddingBetweenBases(S5 *s) { |
| // "c1" [0], PAD [1-3] , "c2" [4], PAD [5-7] |
| __builtin_clear_padding(s); |
| } |
| |
| struct B3 { |
| char c1; |
| }; |
| |
| struct B4 { |
| char c2; |
| }; |
| |
| struct S6 : B3, B4 { |
| alignas(4) char c3; |
| }; |
| |
| // LINUX-LABEL: define dso_local void @_Z24testPaddingAfterLastBaseP2S6( |
| // LINUX-SAME: ptr noundef [[S:%.*]]) #[[ATTR0]] { |
| // LINUX-NEXT: [[ENTRY:.*:]] |
| // LINUX-NEXT: [[S_ADDR:%.*]] = alloca ptr, align 8 |
| // LINUX-NEXT: store ptr [[S]], ptr [[S_ADDR]], align 8 |
| // LINUX-NEXT: [[TMP0:%.*]] = load ptr, ptr [[S_ADDR]], align 8 |
| // LINUX-NEXT: [[TMP1:%.*]] = getelementptr i8, ptr [[TMP0]], i32 2 |
| // LINUX-NEXT: store i8 0, ptr [[TMP1]], align 2 |
| // LINUX-NEXT: [[TMP2:%.*]] = getelementptr i8, ptr [[TMP0]], i32 3 |
| // LINUX-NEXT: store i8 0, ptr [[TMP2]], align 1 |
| // LINUX-NEXT: [[TMP3:%.*]] = getelementptr i8, ptr [[TMP0]], i32 5 |
| // LINUX-NEXT: store i8 0, ptr [[TMP3]], align 1 |
| // LINUX-NEXT: [[TMP4:%.*]] = getelementptr i8, ptr [[TMP0]], i32 6 |
| // LINUX-NEXT: store i8 0, ptr [[TMP4]], align 2 |
| // LINUX-NEXT: [[TMP5:%.*]] = getelementptr i8, ptr [[TMP0]], i32 7 |
| // LINUX-NEXT: store i8 0, ptr [[TMP5]], align 1 |
| // LINUX-NEXT: ret void |
| // |
| // WINDOWS-LABEL: define dso_local void @"?testPaddingAfterLastBase@@YAXPEAUS6@@@Z"(ptr noundef %s) #0 { |
| // WINDOWS-NEXT: entry: |
| // WINDOWS-NEXT: %s.addr = alloca ptr, align 8 |
| // WINDOWS-NEXT: store ptr %s, ptr %s.addr, align 8 |
| // WINDOWS-NEXT: %0 = load ptr, ptr %s.addr, align 8 |
| // WINDOWS-NEXT: %1 = getelementptr i8, ptr %0, i32 2 |
| // WINDOWS-NEXT: store i8 0, ptr %1, align 2 |
| // WINDOWS-NEXT: %2 = getelementptr i8, ptr %0, i32 3 |
| // WINDOWS-NEXT: store i8 0, ptr %2, align 1 |
| // WINDOWS-NEXT: %3 = getelementptr i8, ptr %0, i32 5 |
| // WINDOWS-NEXT: store i8 0, ptr %3, align 1 |
| // WINDOWS-NEXT: %4 = getelementptr i8, ptr %0, i32 6 |
| // WINDOWS-NEXT: store i8 0, ptr %4, align 2 |
| // WINDOWS-NEXT: %5 = getelementptr i8, ptr %0, i32 7 |
| // WINDOWS-NEXT: store i8 0, ptr %5, align 1 |
| // WINDOWS-NEXT: ret void |
| // |
| void testPaddingAfterLastBase(S6 *s) { |
| // "c1"[0], "c2"[1], PAD [2-3], "c3" [4], PAD [5-7] |
| __builtin_clear_padding(s); |
| } |
| |
| |
| struct VirtualBase { |
| unsigned int x; |
| virtual int call() { return x; }; |
| virtual ~VirtualBase() = default; |
| }; |
| |
| struct NonVirtualBase { |
| char y; |
| }; |
| |
| struct S7 : VirtualBase, NonVirtualBase { |
| virtual int call() override { return 5; } |
| bool z; |
| }; |
| |
| // LINUX-LABEL: define dso_local void @_Z10testVtable2S7( |
| // LINUX-SAME: ptr noundef align 8 [[S:%.*]]) #[[ATTR0]] { |
| // LINUX-NEXT: [[ENTRY:.*:]] |
| // LINUX-NEXT: [[S_INDIRECT_ADDR:%.*]] = alloca ptr, align 8 |
| // LINUX-NEXT: store ptr [[S]], ptr [[S_INDIRECT_ADDR]], align 8 |
| // LINUX-NEXT: [[TMP0:%.*]] = getelementptr i8, ptr [[S]], i32 14 |
| // LINUX-NEXT: store i8 0, ptr [[TMP0]], align 2 |
| // LINUX-NEXT: [[TMP1:%.*]] = getelementptr i8, ptr [[S]], i32 15 |
| // LINUX-NEXT: store i8 0, ptr [[TMP1]], align 1 |
| // LINUX-NEXT: ret void |
| // |
| // WINDOWS-LABEL: define dso_local void @"?testVtable@@YAXUS7@@@Z"(ptr noundef align 8 dead_on_return %s) #0 { |
| // WINDOWS-NEXT: entry: |
| // WINDOWS-NEXT: %s.indirect_addr = alloca ptr, align 8 |
| // WINDOWS-NEXT: store ptr %s, ptr %s.indirect_addr, align 8 |
| // WINDOWS-NEXT: %0 = getelementptr i8, ptr %s, i32 12 |
| // WINDOWS-NEXT: store i8 0, ptr %0, align 4 |
| // WINDOWS-NEXT: %1 = getelementptr i8, ptr %s, i32 13 |
| // WINDOWS-NEXT: store i8 0, ptr %1, align 1 |
| // WINDOWS-NEXT: %2 = getelementptr i8, ptr %s, i32 14 |
| // WINDOWS-NEXT: store i8 0, ptr %2, align 2 |
| // WINDOWS-NEXT: %3 = getelementptr i8, ptr %s, i32 15 |
| // WINDOWS-NEXT: store i8 0, ptr %3, align 1 |
| // WINDOWS-NEXT: %4 = getelementptr i8, ptr %s, i32 18 |
| // WINDOWS-NEXT: store i8 0, ptr %4, align 2 |
| // WINDOWS-NEXT: %5 = getelementptr i8, ptr %s, i32 19 |
| // WINDOWS-NEXT: store i8 0, ptr %5, align 1 |
| // WINDOWS-NEXT: %6 = getelementptr i8, ptr %s, i32 20 |
| // WINDOWS-NEXT: store i8 0, ptr %6, align 4 |
| // WINDOWS-NEXT: %7 = getelementptr i8, ptr %s, i32 21 |
| // WINDOWS-NEXT: store i8 0, ptr %7, align 1 |
| // WINDOWS-NEXT: %8 = getelementptr i8, ptr %s, i32 22 |
| // WINDOWS-NEXT: store i8 0, ptr %8, align 2 |
| // WINDOWS-NEXT: %9 = getelementptr i8, ptr %s, i32 23 |
| // WINDOWS-NEXT: store i8 0, ptr %9, align 1 |
| // WINDOWS-NEXT: call void @"??1S7@@UEAA@XZ"(ptr noundef nonnull align 8 dead_on_return(24) dereferenceable(24) %s) #1 |
| // WINDOWS-NEXT: ret void |
| // |
| void testVtable(S7 s) { |
| // "vtable ptr" [0-7], "x" [8-11], "y" [12], "z" [13], PAD [14-15] |
| __builtin_clear_padding(&s); |
| } |
| |
| struct VirtualBase1 { |
| unsigned int x1; |
| virtual int call1() { return x1; }; |
| virtual ~VirtualBase1() = default; |
| }; |
| |
| struct VirtualBase2 { |
| unsigned int x2; |
| virtual int call2() { return x2; }; |
| virtual ~VirtualBase2() = default; |
| }; |
| |
| struct VirtualBase3 { |
| unsigned int x3; |
| virtual int call3() { return x3; }; |
| virtual ~VirtualBase3() = default; |
| }; |
| |
| struct NonVirtualBase1 { |
| char y; |
| }; |
| struct S8 : VirtualBase1, VirtualBase2, NonVirtualBase1, VirtualBase3 { |
| virtual int call1() override { return 5; } |
| bool z; |
| }; |
| |
| // LINUX-LABEL: define dso_local void @_Z23testMultipleBasesVtable2S8( |
| // LINUX-SAME: ptr noundef align 8 [[S:%.*]]) #[[ATTR0]] { |
| // LINUX-NEXT: [[ENTRY:.*:]] |
| // LINUX-NEXT: [[S_INDIRECT_ADDR:%.*]] = alloca ptr, align 8 |
| // LINUX-NEXT: store ptr [[S]], ptr [[S_INDIRECT_ADDR]], align 8 |
| // LINUX-NEXT: [[TMP0:%.*]] = getelementptr i8, ptr [[S]], i32 12 |
| // LINUX-NEXT: store i8 0, ptr [[TMP0]], align 4 |
| // LINUX-NEXT: [[TMP1:%.*]] = getelementptr i8, ptr [[S]], i32 13 |
| // LINUX-NEXT: store i8 0, ptr [[TMP1]], align 1 |
| // LINUX-NEXT: [[TMP2:%.*]] = getelementptr i8, ptr [[S]], i32 14 |
| // LINUX-NEXT: store i8 0, ptr [[TMP2]], align 2 |
| // LINUX-NEXT: [[TMP3:%.*]] = getelementptr i8, ptr [[S]], i32 15 |
| // LINUX-NEXT: store i8 0, ptr [[TMP3]], align 1 |
| // LINUX-NEXT: [[TMP4:%.*]] = getelementptr i8, ptr [[S]], i32 29 |
| // LINUX-NEXT: store i8 0, ptr [[TMP4]], align 1 |
| // LINUX-NEXT: [[TMP5:%.*]] = getelementptr i8, ptr [[S]], i32 30 |
| // LINUX-NEXT: store i8 0, ptr [[TMP5]], align 2 |
| // LINUX-NEXT: [[TMP6:%.*]] = getelementptr i8, ptr [[S]], i32 31 |
| // LINUX-NEXT: store i8 0, ptr [[TMP6]], align 1 |
| // LINUX-NEXT: [[TMP7:%.*]] = getelementptr i8, ptr [[S]], i32 45 |
| // LINUX-NEXT: store i8 0, ptr [[TMP7]], align 1 |
| // LINUX-NEXT: [[TMP8:%.*]] = getelementptr i8, ptr [[S]], i32 46 |
| // LINUX-NEXT: store i8 0, ptr [[TMP8]], align 2 |
| // LINUX-NEXT: [[TMP9:%.*]] = getelementptr i8, ptr [[S]], i32 47 |
| // LINUX-NEXT: store i8 0, ptr [[TMP9]], align 1 |
| // LINUX-NEXT: ret void |
| // |
| // WINDOWS-LABEL: define dso_local void @"?testMultipleBasesVtable@@YAXUS8@@@Z"(ptr noundef align 8 dead_on_return %s) #0 { |
| // WINDOWS-NEXT: entry: |
| // WINDOWS-NEXT: %s.indirect_addr = alloca ptr, align 8 |
| // WINDOWS-NEXT: store ptr %s, ptr %s.indirect_addr, align 8 |
| // WINDOWS-NEXT: %0 = getelementptr i8, ptr %s, i32 12 |
| // WINDOWS-NEXT: store i8 0, ptr %0, align 4 |
| // WINDOWS-NEXT: %1 = getelementptr i8, ptr %s, i32 13 |
| // WINDOWS-NEXT: store i8 0, ptr %1, align 1 |
| // WINDOWS-NEXT: %2 = getelementptr i8, ptr %s, i32 14 |
| // WINDOWS-NEXT: store i8 0, ptr %2, align 2 |
| // WINDOWS-NEXT: %3 = getelementptr i8, ptr %s, i32 15 |
| // WINDOWS-NEXT: store i8 0, ptr %3, align 1 |
| // WINDOWS-NEXT: %4 = getelementptr i8, ptr %s, i32 28 |
| // WINDOWS-NEXT: store i8 0, ptr %4, align 4 |
| // WINDOWS-NEXT: %5 = getelementptr i8, ptr %s, i32 29 |
| // WINDOWS-NEXT: store i8 0, ptr %5, align 1 |
| // WINDOWS-NEXT: %6 = getelementptr i8, ptr %s, i32 30 |
| // WINDOWS-NEXT: store i8 0, ptr %6, align 2 |
| // WINDOWS-NEXT: %7 = getelementptr i8, ptr %s, i32 31 |
| // WINDOWS-NEXT: store i8 0, ptr %7, align 1 |
| // WINDOWS-NEXT: %8 = getelementptr i8, ptr %s, i32 44 |
| // WINDOWS-NEXT: store i8 0, ptr %8, align 4 |
| // WINDOWS-NEXT: %9 = getelementptr i8, ptr %s, i32 45 |
| // WINDOWS-NEXT: store i8 0, ptr %9, align 1 |
| // WINDOWS-NEXT: %10 = getelementptr i8, ptr %s, i32 46 |
| // WINDOWS-NEXT: store i8 0, ptr %10, align 2 |
| // WINDOWS-NEXT: %11 = getelementptr i8, ptr %s, i32 47 |
| // WINDOWS-NEXT: store i8 0, ptr %11, align 1 |
| // WINDOWS-NEXT: %12 = getelementptr i8, ptr %s, i32 50 |
| // WINDOWS-NEXT: store i8 0, ptr %12, align 2 |
| // WINDOWS-NEXT: %13 = getelementptr i8, ptr %s, i32 51 |
| // WINDOWS-NEXT: store i8 0, ptr %13, align 1 |
| // WINDOWS-NEXT: %14 = getelementptr i8, ptr %s, i32 52 |
| // WINDOWS-NEXT: store i8 0, ptr %14, align 4 |
| // WINDOWS-NEXT: %15 = getelementptr i8, ptr %s, i32 53 |
| // WINDOWS-NEXT: store i8 0, ptr %15, align 1 |
| // WINDOWS-NEXT: %16 = getelementptr i8, ptr %s, i32 54 |
| // WINDOWS-NEXT: store i8 0, ptr %16, align 2 |
| // WINDOWS-NEXT: %17 = getelementptr i8, ptr %s, i32 55 |
| // WINDOWS-NEXT: store i8 0, ptr %17, align 1 |
| // WINDOWS-NEXT: call void @"??1S8@@UEAA@XZ"(ptr noundef nonnull align 8 dead_on_return(56) dereferenceable(56) %s) #1 |
| // WINDOWS-NEXT: ret void |
| // |
| void testMultipleBasesVtable(S8 s) { |
| // "vtable ptr" [0-7], "x1" [8-11], PAD "[12-15]", |
| // "vtable ptr" [16-23], "x2" [24-27], "y" [28], PAD "[29-31]", |
| // "vtable_ptr" [32-39], "x3" [40-43], "z" [44], PAD [45-47] |
| __builtin_clear_padding(&s); |
| } |
| |
| struct VirtualChain1 { |
| unsigned int x1; |
| virtual int call1() { return x1; }; |
| virtual ~VirtualChain1() = default; |
| }; |
| |
| struct VirtualChain2 : VirtualChain1 { |
| unsigned int x2; |
| virtual int call2() { return x2; }; |
| virtual ~VirtualChain2() = default; |
| }; |
| |
| struct VirtualChain3 : VirtualChain2 { |
| unsigned int x3; |
| virtual int call3() { return x3; }; |
| virtual ~VirtualChain3() = default; |
| }; |
| |
| struct NonVirtualBase2 { |
| char y; |
| }; |
| |
| struct S9 : NonVirtualBase2, VirtualChain3 { |
| bool z; |
| }; |
| |
| // LINUX-LABEL: define dso_local void @_Z16testVirtualChain2S9( |
| // LINUX-SAME: ptr noundef align 8 [[S:%.*]]) #[[ATTR0]] { |
| // LINUX-NEXT: [[ENTRY:.*:]] |
| // LINUX-NEXT: [[S_INDIRECT_ADDR:%.*]] = alloca ptr, align 8 |
| // LINUX-NEXT: store ptr [[S]], ptr [[S_INDIRECT_ADDR]], align 8 |
| // LINUX-NEXT: [[TMP0:%.*]] = getelementptr i8, ptr [[S]], i32 22 |
| // LINUX-NEXT: store i8 0, ptr [[TMP0]], align 2 |
| // LINUX-NEXT: [[TMP1:%.*]] = getelementptr i8, ptr [[S]], i32 23 |
| // LINUX-NEXT: store i8 0, ptr [[TMP1]], align 1 |
| // LINUX-NEXT: ret void |
| // |
| // WINDOWS-LABEL: define dso_local void @"?testVirtualChain@@YAXUS9@@@Z"(ptr noundef align 8 dead_on_return %s) #0 { |
| // WINDOWS-NEXT: entry: |
| // WINDOWS-NEXT: %s.indirect_addr = alloca ptr, align 8 |
| // WINDOWS-NEXT: store ptr %s, ptr %s.indirect_addr, align 8 |
| // WINDOWS-NEXT: %0 = getelementptr i8, ptr %s, i32 12 |
| // WINDOWS-NEXT: store i8 0, ptr %0, align 4 |
| // WINDOWS-NEXT: %1 = getelementptr i8, ptr %s, i32 13 |
| // WINDOWS-NEXT: store i8 0, ptr %1, align 1 |
| // WINDOWS-NEXT: %2 = getelementptr i8, ptr %s, i32 14 |
| // WINDOWS-NEXT: store i8 0, ptr %2, align 2 |
| // WINDOWS-NEXT: %3 = getelementptr i8, ptr %s, i32 15 |
| // WINDOWS-NEXT: store i8 0, ptr %3, align 1 |
| // WINDOWS-NEXT: %4 = getelementptr i8, ptr %s, i32 20 |
| // WINDOWS-NEXT: store i8 0, ptr %4, align 4 |
| // WINDOWS-NEXT: %5 = getelementptr i8, ptr %s, i32 21 |
| // WINDOWS-NEXT: store i8 0, ptr %5, align 1 |
| // WINDOWS-NEXT: %6 = getelementptr i8, ptr %s, i32 22 |
| // WINDOWS-NEXT: store i8 0, ptr %6, align 2 |
| // WINDOWS-NEXT: %7 = getelementptr i8, ptr %s, i32 23 |
| // WINDOWS-NEXT: store i8 0, ptr %7, align 1 |
| // WINDOWS-NEXT: %8 = getelementptr i8, ptr %s, i32 28 |
| // WINDOWS-NEXT: store i8 0, ptr %8, align 4 |
| // WINDOWS-NEXT: %9 = getelementptr i8, ptr %s, i32 29 |
| // WINDOWS-NEXT: store i8 0, ptr %9, align 1 |
| // WINDOWS-NEXT: %10 = getelementptr i8, ptr %s, i32 30 |
| // WINDOWS-NEXT: store i8 0, ptr %10, align 2 |
| // WINDOWS-NEXT: %11 = getelementptr i8, ptr %s, i32 31 |
| // WINDOWS-NEXT: store i8 0, ptr %11, align 1 |
| // WINDOWS-NEXT: %12 = getelementptr i8, ptr %s, i32 34 |
| // WINDOWS-NEXT: store i8 0, ptr %12, align 2 |
| // WINDOWS-NEXT: %13 = getelementptr i8, ptr %s, i32 35 |
| // WINDOWS-NEXT: store i8 0, ptr %13, align 1 |
| // WINDOWS-NEXT: %14 = getelementptr i8, ptr %s, i32 36 |
| // WINDOWS-NEXT: store i8 0, ptr %14, align 4 |
| // WINDOWS-NEXT: %15 = getelementptr i8, ptr %s, i32 37 |
| // WINDOWS-NEXT: store i8 0, ptr %15, align 1 |
| // WINDOWS-NEXT: %16 = getelementptr i8, ptr %s, i32 38 |
| // WINDOWS-NEXT: store i8 0, ptr %16, align 2 |
| // WINDOWS-NEXT: %17 = getelementptr i8, ptr %s, i32 39 |
| // WINDOWS-NEXT: store i8 0, ptr %17, align 1 |
| // WINDOWS-NEXT: call void @"??1S9@@UEAA@XZ"(ptr noundef nonnull align 8 dead_on_return(40) dereferenceable(40) %s) #1 |
| // WINDOWS-NEXT: ret void |
| // |
| void testVirtualChain(S9 s) { |
| // This should clear the padding after the bool z. |
| // base reordered |
| // "vtable ptr" [0-7], "x1" [8-11], x2 [12-15], x3 [16-19], |
| // y [20], z [21], PAD [22-23] |
| __builtin_clear_padding(&s); |
| } |
| |
| |
| struct Base { |
| int x; |
| }; |
| |
| struct D1 : virtual Base { |
| int d1; |
| bool b1; |
| }; |
| struct D2 : virtual Base { |
| int d2; |
| bool b2; |
| }; |
| |
| struct S10 : D1, D2 { |
| bool s; |
| }; |
| |
| // LINUX-LABEL: define dso_local void @_Z22testVirtualInheritance3S10( |
| // LINUX-SAME: ptr noundef align 8 dead_on_return [[S:%.*]]) #[[ATTR0]] { |
| // LINUX-NEXT: [[ENTRY:.*:]] |
| // LINUX-NEXT: [[S_INDIRECT_ADDR:%.*]] = alloca ptr, align 8 |
| // LINUX-NEXT: store ptr [[S]], ptr [[S_INDIRECT_ADDR]], align 8 |
| // LINUX-NEXT: [[TMP0:%.*]] = getelementptr i8, ptr [[S]], i32 13 |
| // LINUX-NEXT: store i8 0, ptr [[TMP0]], align 1 |
| // LINUX-NEXT: [[TMP1:%.*]] = getelementptr i8, ptr [[S]], i32 14 |
| // LINUX-NEXT: store i8 0, ptr [[TMP1]], align 2 |
| // LINUX-NEXT: [[TMP2:%.*]] = getelementptr i8, ptr [[S]], i32 15 |
| // LINUX-NEXT: store i8 0, ptr [[TMP2]], align 1 |
| // LINUX-NEXT: [[TMP3:%.*]] = getelementptr i8, ptr [[S]], i32 30 |
| // LINUX-NEXT: store i8 0, ptr [[TMP3]], align 2 |
| // LINUX-NEXT: [[TMP4:%.*]] = getelementptr i8, ptr [[S]], i32 31 |
| // LINUX-NEXT: store i8 0, ptr [[TMP4]], align 1 |
| // LINUX-NEXT: [[TMP5:%.*]] = getelementptr i8, ptr [[S]], i32 36 |
| // LINUX-NEXT: store i8 0, ptr [[TMP5]], align 4 |
| // LINUX-NEXT: [[TMP6:%.*]] = getelementptr i8, ptr [[S]], i32 37 |
| // LINUX-NEXT: store i8 0, ptr [[TMP6]], align 1 |
| // LINUX-NEXT: [[TMP7:%.*]] = getelementptr i8, ptr [[S]], i32 38 |
| // LINUX-NEXT: store i8 0, ptr [[TMP7]], align 2 |
| // LINUX-NEXT: [[TMP8:%.*]] = getelementptr i8, ptr [[S]], i32 39 |
| // LINUX-NEXT: store i8 0, ptr [[TMP8]], align 1 |
| // LINUX-NEXT: ret void |
| // |
| // WINDOWS-LABEL: define dso_local void @"?testVirtualInheritance@@YAXUS10@@@Z"(ptr noundef align 8 dead_on_return %s) #0 { |
| // WINDOWS-NEXT: entry: |
| // WINDOWS-NEXT: %s.indirect_addr = alloca ptr, align 8 |
| // WINDOWS-NEXT: store ptr %s, ptr %s.indirect_addr, align 8 |
| // WINDOWS-NEXT: %0 = getelementptr i8, ptr %s, i32 13 |
| // WINDOWS-NEXT: store i8 0, ptr %0, align 1 |
| // WINDOWS-NEXT: %1 = getelementptr i8, ptr %s, i32 14 |
| // WINDOWS-NEXT: store i8 0, ptr %1, align 2 |
| // WINDOWS-NEXT: %2 = getelementptr i8, ptr %s, i32 15 |
| // WINDOWS-NEXT: store i8 0, ptr %2, align 1 |
| // WINDOWS-NEXT: %3 = getelementptr i8, ptr %s, i32 29 |
| // WINDOWS-NEXT: store i8 0, ptr %3, align 1 |
| // WINDOWS-NEXT: %4 = getelementptr i8, ptr %s, i32 30 |
| // WINDOWS-NEXT: store i8 0, ptr %4, align 2 |
| // WINDOWS-NEXT: %5 = getelementptr i8, ptr %s, i32 31 |
| // WINDOWS-NEXT: store i8 0, ptr %5, align 1 |
| // WINDOWS-NEXT: %6 = getelementptr i8, ptr %s, i32 33 |
| // WINDOWS-NEXT: store i8 0, ptr %6, align 1 |
| // WINDOWS-NEXT: %7 = getelementptr i8, ptr %s, i32 34 |
| // WINDOWS-NEXT: store i8 0, ptr %7, align 2 |
| // WINDOWS-NEXT: %8 = getelementptr i8, ptr %s, i32 35 |
| // WINDOWS-NEXT: store i8 0, ptr %8, align 1 |
| // WINDOWS-NEXT: %9 = getelementptr i8, ptr %s, i32 36 |
| // WINDOWS-NEXT: store i8 0, ptr %9, align 4 |
| // WINDOWS-NEXT: %10 = getelementptr i8, ptr %s, i32 37 |
| // WINDOWS-NEXT: store i8 0, ptr %10, align 1 |
| // WINDOWS-NEXT: %11 = getelementptr i8, ptr %s, i32 38 |
| // WINDOWS-NEXT: store i8 0, ptr %11, align 2 |
| // WINDOWS-NEXT: %12 = getelementptr i8, ptr %s, i32 39 |
| // WINDOWS-NEXT: store i8 0, ptr %12, align 1 |
| // WINDOWS-NEXT: %13 = getelementptr i8, ptr %s, i32 44 |
| // WINDOWS-NEXT: store i8 0, ptr %13, align 4 |
| // WINDOWS-NEXT: %14 = getelementptr i8, ptr %s, i32 45 |
| // WINDOWS-NEXT: store i8 0, ptr %14, align 1 |
| // WINDOWS-NEXT: %15 = getelementptr i8, ptr %s, i32 46 |
| // WINDOWS-NEXT: store i8 0, ptr %15, align 2 |
| // WINDOWS-NEXT: %16 = getelementptr i8, ptr %s, i32 47 |
| // WINDOWS-NEXT: store i8 0, ptr %16, align 1 |
| // WINDOWS-NEXT: ret void |
| // |
| void testVirtualInheritance(S10 s) { |
| // note derived member placed before the virtual base |
| // "vtable ptr" [0-7], "d1" [8-11], "b1" [12], PAD [13-15], |
| // "vtable ptr" [16-23], "d2" [24-27], "b2" [28], s [29], PAD [30-31], |
| // "x" [32-35], PAD [36-39] |
| __builtin_clear_padding(&s); |
| } |
| |
| struct S10_2 : virtual Base { |
| int d1; |
| bool b; |
| virtual ~S10_2() = default; |
| }; |
| |
| // LINUX-LABEL: define dso_local void @_Z40testVirtualInheritanceAndVirtualFunction5S10_2( |
| // LINUX-SAME: ptr noundef align 8 [[S:%.*]]) #[[ATTR0]] { |
| // LINUX-NEXT: [[ENTRY:.*:]] |
| // LINUX-NEXT: [[S_INDIRECT_ADDR:%.*]] = alloca ptr, align 8 |
| // LINUX-NEXT: store ptr [[S]], ptr [[S_INDIRECT_ADDR]], align 8 |
| // LINUX-NEXT: [[TMP0:%.*]] = getelementptr i8, ptr [[S]], i32 13 |
| // LINUX-NEXT: store i8 0, ptr [[TMP0]], align 1 |
| // LINUX-NEXT: [[TMP1:%.*]] = getelementptr i8, ptr [[S]], i32 14 |
| // LINUX-NEXT: store i8 0, ptr [[TMP1]], align 2 |
| // LINUX-NEXT: [[TMP2:%.*]] = getelementptr i8, ptr [[S]], i32 15 |
| // LINUX-NEXT: store i8 0, ptr [[TMP2]], align 1 |
| // LINUX-NEXT: [[TMP3:%.*]] = getelementptr i8, ptr [[S]], i32 20 |
| // LINUX-NEXT: store i8 0, ptr [[TMP3]], align 4 |
| // LINUX-NEXT: [[TMP4:%.*]] = getelementptr i8, ptr [[S]], i32 21 |
| // LINUX-NEXT: store i8 0, ptr [[TMP4]], align 1 |
| // LINUX-NEXT: [[TMP5:%.*]] = getelementptr i8, ptr [[S]], i32 22 |
| // LINUX-NEXT: store i8 0, ptr [[TMP5]], align 2 |
| // LINUX-NEXT: [[TMP6:%.*]] = getelementptr i8, ptr [[S]], i32 23 |
| // LINUX-NEXT: store i8 0, ptr [[TMP6]], align 1 |
| // LINUX-NEXT: ret void |
| // |
| // WINDOWS-LABEL: define dso_local void @"?testVirtualInheritanceAndVirtualFunction@@YAXUS10_2@@@Z"(ptr noundef align 8 dead_on_return %s) #0 { |
| // WINDOWS-NEXT: entry: |
| // WINDOWS-NEXT: %s.indirect_addr = alloca ptr, align 8 |
| // WINDOWS-NEXT: store ptr %s, ptr %s.indirect_addr, align 8 |
| // WINDOWS-NEXT: %0 = getelementptr i8, ptr %s, i32 21 |
| // WINDOWS-NEXT: store i8 0, ptr %0, align 1 |
| // WINDOWS-NEXT: %1 = getelementptr i8, ptr %s, i32 22 |
| // WINDOWS-NEXT: store i8 0, ptr %1, align 2 |
| // WINDOWS-NEXT: %2 = getelementptr i8, ptr %s, i32 23 |
| // WINDOWS-NEXT: store i8 0, ptr %2, align 1 |
| // WINDOWS-NEXT: %3 = getelementptr i8, ptr %s, i32 28 |
| // WINDOWS-NEXT: store i8 0, ptr %3, align 4 |
| // WINDOWS-NEXT: %4 = getelementptr i8, ptr %s, i32 29 |
| // WINDOWS-NEXT: store i8 0, ptr %4, align 1 |
| // WINDOWS-NEXT: %5 = getelementptr i8, ptr %s, i32 30 |
| // WINDOWS-NEXT: store i8 0, ptr %5, align 2 |
| // WINDOWS-NEXT: %6 = getelementptr i8, ptr %s, i32 31 |
| // WINDOWS-NEXT: store i8 0, ptr %6, align 1 |
| // WINDOWS-NEXT: call void @"??_DS10_2@@QEAAXXZ"(ptr noundef nonnull align 8 dereferenceable(24) %s) #1 |
| // WINDOWS-NEXT: ret void |
| // |
| void testVirtualInheritanceAndVirtualFunction(S10_2 s) { |
| __builtin_clear_padding(&s); |
| } |
| |
| struct S11 { |
| // will usually occupy 2 bytes: |
| unsigned char b1 : 3; // 1st 3 bits (in 1st byte) are b1 |
| unsigned char b2 : 2; // next 2 bits (in 1st byte). The rest bits in byte 1 are unused |
| unsigned char b3 : 6; // 6 bits for b3 - doesn't fit into the 1st byte => starts a 2nd |
| unsigned char b4 : 2; // 2 bits for b4 - next (and final) bits in the 2nd byte |
| }; |
| |
| // LINUX-LABEL: define dso_local void @_Z13testBitFieldsP3S11( |
| // LINUX-SAME: ptr noundef [[S:%.*]]) #[[ATTR0]] { |
| // LINUX-NEXT: [[ENTRY:.*:]] |
| // LINUX-NEXT: [[S_ADDR:%.*]] = alloca ptr, align 8 |
| // LINUX-NEXT: store ptr [[S]], ptr [[S_ADDR]], align 8 |
| // LINUX-NEXT: [[TMP0:%.*]] = load ptr, ptr [[S_ADDR]], align 8 |
| // LINUX-NEXT: [[TMP1:%.*]] = getelementptr i8, ptr [[TMP0]], i32 0 |
| // LINUX-NEXT: [[TMP2:%.*]] = load i8, ptr [[TMP1]], align 1 |
| // LINUX-NEXT: [[TMP3:%.*]] = and i8 [[TMP2]], 31 |
| // LINUX-NEXT: store i8 [[TMP3]], ptr [[TMP1]], align 1 |
| // LINUX-NEXT: ret void |
| // |
| // WINDOWS-LABEL: define dso_local void @"?testBitFields@@YAXPEAUS11@@@Z"(ptr noundef %s) #0 { |
| // WINDOWS-NEXT: entry: |
| // WINDOWS-NEXT: %s.addr = alloca ptr, align 8 |
| // WINDOWS-NEXT: store ptr %s, ptr %s.addr, align 8 |
| // WINDOWS-NEXT: %0 = load ptr, ptr %s.addr, align 8 |
| // WINDOWS-NEXT: %1 = getelementptr i8, ptr %0, i32 0 |
| // WINDOWS-NEXT: %2 = load i8, ptr %1, align 1 |
| // WINDOWS-NEXT: %3 = and i8 %2, 31 |
| // WINDOWS-NEXT: store i8 %3, ptr %1, align 1 |
| // WINDOWS-NEXT: ret void |
| // |
| void testBitFields(S11 *s) { |
| // "b1" [0-2], "b2" [3-4], PAD [5-7], "b3" [8-13], "b4" [14-15] |
| // to clear 5-7, we should AND 0b00011111 (31) |
| __builtin_clear_padding(s); |
| } |
| |
| |
| // LINUX-LABEL: define dso_local void @_Z18testArrayNoPaddingv( |
| // LINUX-SAME: ) #[[ATTR0]] { |
| // LINUX-NEXT: [[ENTRY:.*:]] |
| // LINUX-NEXT: [[I:%.*]] = alloca [4 x i32], align 16 |
| // LINUX-NEXT: ret void |
| // |
| // WINDOWS-LABEL: define dso_local void @"?testArrayNoPadding@@YAXXZ"() #0 { |
| // WINDOWS-NEXT: entry: |
| // WINDOWS-NEXT: %i = alloca [4 x i32], align 4 |
| // WINDOWS-NEXT: ret void |
| // |
| void testArrayNoPadding() { |
| int i[4]; |
| // there is no padding in the array. |
| __builtin_clear_padding(&i); |
| } |
| |
| // LINUX-LABEL: define dso_local void @_Z19testArrayLongDoublev( |
| // LINUX-SAME: ) #[[ATTR0]] { |
| // LINUX-NEXT: [[ENTRY:.*:]] |
| // LINUX-NEXT: [[LD:%.*]] = alloca [2 x x86_fp80], align 16 |
| // LINUX-NEXT: [[TMP0:%.*]] = getelementptr i8, ptr [[LD]], i32 10 |
| // LINUX-NEXT: store i8 0, ptr [[TMP0]], align 2 |
| // LINUX-NEXT: [[TMP1:%.*]] = getelementptr i8, ptr [[LD]], i32 11 |
| // LINUX-NEXT: store i8 0, ptr [[TMP1]], align 1 |
| // LINUX-NEXT: [[TMP2:%.*]] = getelementptr i8, ptr [[LD]], i32 12 |
| // LINUX-NEXT: store i8 0, ptr [[TMP2]], align 4 |
| // LINUX-NEXT: [[TMP3:%.*]] = getelementptr i8, ptr [[LD]], i32 13 |
| // LINUX-NEXT: store i8 0, ptr [[TMP3]], align 1 |
| // LINUX-NEXT: [[TMP4:%.*]] = getelementptr i8, ptr [[LD]], i32 14 |
| // LINUX-NEXT: store i8 0, ptr [[TMP4]], align 2 |
| // LINUX-NEXT: [[TMP5:%.*]] = getelementptr i8, ptr [[LD]], i32 15 |
| // LINUX-NEXT: store i8 0, ptr [[TMP5]], align 1 |
| // LINUX-NEXT: [[TMP6:%.*]] = getelementptr i8, ptr [[LD]], i32 26 |
| // LINUX-NEXT: store i8 0, ptr [[TMP6]], align 2 |
| // LINUX-NEXT: [[TMP7:%.*]] = getelementptr i8, ptr [[LD]], i32 27 |
| // LINUX-NEXT: store i8 0, ptr [[TMP7]], align 1 |
| // LINUX-NEXT: [[TMP8:%.*]] = getelementptr i8, ptr [[LD]], i32 28 |
| // LINUX-NEXT: store i8 0, ptr [[TMP8]], align 4 |
| // LINUX-NEXT: [[TMP9:%.*]] = getelementptr i8, ptr [[LD]], i32 29 |
| // LINUX-NEXT: store i8 0, ptr [[TMP9]], align 1 |
| // LINUX-NEXT: [[TMP10:%.*]] = getelementptr i8, ptr [[LD]], i32 30 |
| // LINUX-NEXT: store i8 0, ptr [[TMP10]], align 2 |
| // LINUX-NEXT: [[TMP11:%.*]] = getelementptr i8, ptr [[LD]], i32 31 |
| // LINUX-NEXT: store i8 0, ptr [[TMP11]], align 1 |
| // LINUX-NEXT: ret void |
| // |
| // WINDOWS-LABEL: define dso_local void @"?testArrayLongDouble@@YAXXZ"() #0 { |
| // WINDOWS-NEXT: entry: |
| // WINDOWS-NEXT: %ld = alloca [2 x double], align 8 |
| // WINDOWS-NEXT: ret void |
| // |
| void testArrayLongDouble() { |
| // long double 0, [0-9] PAD [10-15] |
| // long double 1, [16-25] PAD [26-31] |
| long double ld[2]; |
| __builtin_clear_padding(&ld); |
| } |
| |
| // LINUX-LABEL: define dso_local void @_Z17testArrayOfStructv( |
| // LINUX-SAME: ) #[[ATTR0]] { |
| // LINUX-NEXT: [[ENTRY:.*:]] |
| // LINUX-NEXT: [[S:%.*]] = alloca [2 x [[STRUCT_S_0:%.*]]], align 16 |
| // LINUX-NEXT: [[TMP0:%.*]] = getelementptr i8, ptr [[S]], i32 5 |
| // LINUX-NEXT: store i8 0, ptr [[TMP0]], align 1 |
| // LINUX-NEXT: [[TMP1:%.*]] = getelementptr i8, ptr [[S]], i32 6 |
| // LINUX-NEXT: store i8 0, ptr [[TMP1]], align 2 |
| // LINUX-NEXT: [[TMP2:%.*]] = getelementptr i8, ptr [[S]], i32 7 |
| // LINUX-NEXT: store i8 0, ptr [[TMP2]], align 1 |
| // LINUX-NEXT: [[TMP3:%.*]] = getelementptr i8, ptr [[S]], i32 13 |
| // LINUX-NEXT: store i8 0, ptr [[TMP3]], align 1 |
| // LINUX-NEXT: [[TMP4:%.*]] = getelementptr i8, ptr [[S]], i32 14 |
| // LINUX-NEXT: store i8 0, ptr [[TMP4]], align 2 |
| // LINUX-NEXT: [[TMP5:%.*]] = getelementptr i8, ptr [[S]], i32 15 |
| // LINUX-NEXT: store i8 0, ptr [[TMP5]], align 1 |
| // LINUX-NEXT: [[TMP6:%.*]] = getelementptr i8, ptr [[S]], i32 21 |
| // LINUX-NEXT: store i8 0, ptr [[TMP6]], align 1 |
| // LINUX-NEXT: [[TMP7:%.*]] = getelementptr i8, ptr [[S]], i32 22 |
| // LINUX-NEXT: store i8 0, ptr [[TMP7]], align 2 |
| // LINUX-NEXT: [[TMP8:%.*]] = getelementptr i8, ptr [[S]], i32 23 |
| // LINUX-NEXT: store i8 0, ptr [[TMP8]], align 1 |
| // LINUX-NEXT: [[TMP9:%.*]] = getelementptr i8, ptr [[S]], i32 29 |
| // LINUX-NEXT: store i8 0, ptr [[TMP9]], align 1 |
| // LINUX-NEXT: [[TMP10:%.*]] = getelementptr i8, ptr [[S]], i32 30 |
| // LINUX-NEXT: store i8 0, ptr [[TMP10]], align 2 |
| // LINUX-NEXT: [[TMP11:%.*]] = getelementptr i8, ptr [[S]], i32 31 |
| // LINUX-NEXT: store i8 0, ptr [[TMP11]], align 1 |
| // LINUX-NEXT: ret void |
| // |
| // WINDOWS-LABEL: define dso_local void @"?testArrayOfStruct@@YAXXZ"() #0 { |
| // WINDOWS-NEXT: entry: |
| // WINDOWS-NEXT: %s = alloca [2 x %struct.S.0], align 4 |
| // WINDOWS-NEXT: %0 = getelementptr i8, ptr %s, i32 5 |
| // WINDOWS-NEXT: store i8 0, ptr %0, align 1 |
| // WINDOWS-NEXT: %1 = getelementptr i8, ptr %s, i32 6 |
| // WINDOWS-NEXT: store i8 0, ptr %1, align 2 |
| // WINDOWS-NEXT: %2 = getelementptr i8, ptr %s, i32 7 |
| // WINDOWS-NEXT: store i8 0, ptr %2, align 1 |
| // WINDOWS-NEXT: %3 = getelementptr i8, ptr %s, i32 13 |
| // WINDOWS-NEXT: store i8 0, ptr %3, align 1 |
| // WINDOWS-NEXT: %4 = getelementptr i8, ptr %s, i32 14 |
| // WINDOWS-NEXT: store i8 0, ptr %4, align 2 |
| // WINDOWS-NEXT: %5 = getelementptr i8, ptr %s, i32 15 |
| // WINDOWS-NEXT: store i8 0, ptr %5, align 1 |
| // WINDOWS-NEXT: %6 = getelementptr i8, ptr %s, i32 21 |
| // WINDOWS-NEXT: store i8 0, ptr %6, align 1 |
| // WINDOWS-NEXT: %7 = getelementptr i8, ptr %s, i32 22 |
| // WINDOWS-NEXT: store i8 0, ptr %7, align 2 |
| // WINDOWS-NEXT: %8 = getelementptr i8, ptr %s, i32 23 |
| // WINDOWS-NEXT: store i8 0, ptr %8, align 1 |
| // WINDOWS-NEXT: %9 = getelementptr i8, ptr %s, i32 29 |
| // WINDOWS-NEXT: store i8 0, ptr %9, align 1 |
| // WINDOWS-NEXT: %10 = getelementptr i8, ptr %s, i32 30 |
| // WINDOWS-NEXT: store i8 0, ptr %10, align 2 |
| // WINDOWS-NEXT: %11 = getelementptr i8, ptr %s, i32 31 |
| // WINDOWS-NEXT: store i8 0, ptr %11, align 1 |
| // WINDOWS-NEXT: ret void |
| // |
| void testArrayOfStruct() { |
| struct S { |
| int i1; |
| char c1; |
| int i2; |
| char c2; |
| }; |
| |
| // S[0].i1 [0-3], S[0].c1 [4], PAD [5-7], |
| // S[0].i2 [8-11], S[0].c2 [12], PAD [13-15], |
| // S[1].i1 [16-19], S[1].c1 [20], PAD [21-23], |
| // S[1].i2 [24-27], S[1].c2 [28], PAD [29-31] |
| |
| S s[2]; |
| __builtin_clear_padding(&s); |
| } |
| |
| struct ArrOfStructsWithPadding { |
| Bar bars[2]; |
| }; |
| |
| // ArrOfStructsWithPadding structure: |
| // "c" (1), PAD_1, "d" (1), PAD_2, "c" (2), PAD_3, "d" (2), PAD_4 |
| // %struct.ArrOfStructsWithPadding = type { [2 x %struct.Bar] } |
| |
| // LINUX-LABEL: define dso_local void @_Z27testArrOfStructsWithPaddingP23ArrOfStructsWithPadding( |
| // LINUX-SAME: ptr noundef [[ARR:%.*]]) #[[ATTR0]] { |
| // LINUX-NEXT: [[ENTRY:.*:]] |
| // LINUX-NEXT: [[ARR_ADDR:%.*]] = alloca ptr, align 8 |
| // LINUX-NEXT: store ptr [[ARR]], ptr [[ARR_ADDR]], align 8 |
| // LINUX-NEXT: [[TMP0:%.*]] = load ptr, ptr [[ARR_ADDR]], align 8 |
| // LINUX-NEXT: [[TMP1:%.*]] = getelementptr i8, ptr [[TMP0]], i32 1 |
| // LINUX-NEXT: store i8 0, ptr [[TMP1]], align 1 |
| // LINUX-NEXT: [[TMP2:%.*]] = getelementptr i8, ptr [[TMP0]], i32 3 |
| // LINUX-NEXT: store i8 0, ptr [[TMP2]], align 1 |
| // LINUX-NEXT: [[TMP3:%.*]] = getelementptr i8, ptr [[TMP0]], i32 5 |
| // LINUX-NEXT: store i8 0, ptr [[TMP3]], align 1 |
| // LINUX-NEXT: [[TMP4:%.*]] = getelementptr i8, ptr [[TMP0]], i32 7 |
| // LINUX-NEXT: store i8 0, ptr [[TMP4]], align 1 |
| // LINUX-NEXT: ret void |
| // |
| // WINDOWS-LABEL: define dso_local void @"?testArrOfStructsWithPadding@@YAXPEAUArrOfStructsWithPadding@@@Z"(ptr noundef %arr) #0 { |
| // WINDOWS-NEXT: entry: |
| // WINDOWS-NEXT: %arr.addr = alloca ptr, align 8 |
| // WINDOWS-NEXT: store ptr %arr, ptr %arr.addr, align 8 |
| // WINDOWS-NEXT: %0 = load ptr, ptr %arr.addr, align 8 |
| // WINDOWS-NEXT: %1 = getelementptr i8, ptr %0, i32 1 |
| // WINDOWS-NEXT: store i8 0, ptr %1, align 1 |
| // WINDOWS-NEXT: %2 = getelementptr i8, ptr %0, i32 3 |
| // WINDOWS-NEXT: store i8 0, ptr %2, align 1 |
| // WINDOWS-NEXT: %3 = getelementptr i8, ptr %0, i32 5 |
| // WINDOWS-NEXT: store i8 0, ptr %3, align 1 |
| // WINDOWS-NEXT: %4 = getelementptr i8, ptr %0, i32 7 |
| // WINDOWS-NEXT: store i8 0, ptr %4, align 1 |
| // WINDOWS-NEXT: ret void |
| // |
| void testArrOfStructsWithPadding(ArrOfStructsWithPadding *arr) { |
| __builtin_clear_padding(arr); |
| } |
| |
| template <class T> |
| struct S12 { |
| T t; |
| char c; |
| }; |
| |
| // LINUX-LABEL: define dso_local void @_Z18testTemplateStructP3S12IiE( |
| // LINUX-SAME: ptr noundef [[S12:%.*]]) #[[ATTR0]] { |
| // LINUX-NEXT: [[ENTRY:.*:]] |
| // LINUX-NEXT: [[S12_ADDR:%.*]] = alloca ptr, align 8 |
| // LINUX-NEXT: store ptr [[S12]], ptr [[S12_ADDR]], align 8 |
| // LINUX-NEXT: [[TMP0:%.*]] = load ptr, ptr [[S12_ADDR]], align 8 |
| // LINUX-NEXT: [[TMP1:%.*]] = getelementptr i8, ptr [[TMP0]], i32 5 |
| // LINUX-NEXT: store i8 0, ptr [[TMP1]], align 1 |
| // LINUX-NEXT: [[TMP2:%.*]] = getelementptr i8, ptr [[TMP0]], i32 6 |
| // LINUX-NEXT: store i8 0, ptr [[TMP2]], align 2 |
| // LINUX-NEXT: [[TMP3:%.*]] = getelementptr i8, ptr [[TMP0]], i32 7 |
| // LINUX-NEXT: store i8 0, ptr [[TMP3]], align 1 |
| // LINUX-NEXT: ret void |
| // |
| // WINDOWS-LABEL: define dso_local void @"?testTemplateStruct@@YAXPEAU?$S12@H@@@Z"(ptr noundef %s12) #0 { |
| // WINDOWS-NEXT: entry: |
| // WINDOWS-NEXT: %s12.addr = alloca ptr, align 8 |
| // WINDOWS-NEXT: store ptr %s12, ptr %s12.addr, align 8 |
| // WINDOWS-NEXT: %0 = load ptr, ptr %s12.addr, align 8 |
| // WINDOWS-NEXT: %1 = getelementptr i8, ptr %0, i32 5 |
| // WINDOWS-NEXT: store i8 0, ptr %1, align 1 |
| // WINDOWS-NEXT: %2 = getelementptr i8, ptr %0, i32 6 |
| // WINDOWS-NEXT: store i8 0, ptr %2, align 2 |
| // WINDOWS-NEXT: %3 = getelementptr i8, ptr %0, i32 7 |
| // WINDOWS-NEXT: store i8 0, ptr %3, align 1 |
| // WINDOWS-NEXT: ret void |
| // |
| void testTemplateStruct(S12<int>* s12) { |
| __builtin_clear_padding(s12); |
| } |
| |
| // LINUX-LABEL: define dso_local void @_Z10testAtomicPU7_Atomic3Bar( |
| // LINUX-SAME: ptr noundef [[BAR:%.*]]) #[[ATTR0]] { |
| // LINUX-NEXT: [[ENTRY:.*:]] |
| // LINUX-NEXT: [[BAR_ADDR:%.*]] = alloca ptr, align 8 |
| // LINUX-NEXT: store ptr [[BAR]], ptr [[BAR_ADDR]], align 8 |
| // LINUX-NEXT: [[TMP0:%.*]] = load ptr, ptr [[BAR_ADDR]], align 8 |
| // LINUX-NEXT: [[TMP1:%.*]] = getelementptr i8, ptr [[TMP0]], i32 1 |
| // LINUX-NEXT: store i8 0, ptr [[TMP1]], align 1 |
| // LINUX-NEXT: [[TMP2:%.*]] = getelementptr i8, ptr [[TMP0]], i32 3 |
| // LINUX-NEXT: store i8 0, ptr [[TMP2]], align 1 |
| // LINUX-NEXT: ret void |
| // |
| // WINDOWS-LABEL: define dso_local void @"?testAtomic@@YAXPEAU?$_Atomic@UBar@@@__clang@@@Z"(ptr noundef %bar) #0 { |
| // WINDOWS-NEXT: entry: |
| // WINDOWS-NEXT: %bar.addr = alloca ptr, align 8 |
| // WINDOWS-NEXT: store ptr %bar, ptr %bar.addr, align 8 |
| // WINDOWS-NEXT: %0 = load ptr, ptr %bar.addr, align 8 |
| // WINDOWS-NEXT: %1 = getelementptr i8, ptr %0, i32 1 |
| // WINDOWS-NEXT: store i8 0, ptr %1, align 1 |
| // WINDOWS-NEXT: %2 = getelementptr i8, ptr %0, i32 3 |
| // WINDOWS-NEXT: store i8 0, ptr %2, align 1 |
| // WINDOWS-NEXT: ret void |
| // |
| void testAtomic(_Atomic(Bar)* bar) { |
| __builtin_clear_padding(bar); |
| } |
| |
| |
| struct NonTriviallyCopyable { |
| int i; |
| char c; |
| |
| NonTriviallyCopyable(){} |
| NonTriviallyCopyable(const NonTriviallyCopyable&) {} |
| ~NonTriviallyCopyable() {} |
| }; |
| |
| // LINUX-LABEL: define dso_local void @_Z24testNonTriviallyCopyable20NonTriviallyCopyable( |
| // LINUX-SAME: ptr noundef align 4 [[NTC:%.*]]) #[[ATTR0]] { |
| // LINUX-NEXT: [[ENTRY:.*:]] |
| // LINUX-NEXT: [[NTC_INDIRECT_ADDR:%.*]] = alloca ptr, align 8 |
| // LINUX-NEXT: store ptr [[NTC]], ptr [[NTC_INDIRECT_ADDR]], align 8 |
| // LINUX-NEXT: [[TMP0:%.*]] = getelementptr i8, ptr [[NTC]], i32 5 |
| // LINUX-NEXT: store i8 0, ptr [[TMP0]], align 1 |
| // LINUX-NEXT: [[TMP1:%.*]] = getelementptr i8, ptr [[NTC]], i32 6 |
| // LINUX-NEXT: store i8 0, ptr [[TMP1]], align 2 |
| // LINUX-NEXT: [[TMP2:%.*]] = getelementptr i8, ptr [[NTC]], i32 7 |
| // LINUX-NEXT: store i8 0, ptr [[TMP2]], align 1 |
| // LINUX-NEXT: ret void |
| // |
| // WINDOWS-LABEL: define dso_local void @"?testNonTriviallyCopyable@@YAXUNonTriviallyCopyable@@@Z"(ptr noundef align 4 dead_on_return %ntc) #0 { |
| // WINDOWS-NEXT: entry: |
| // WINDOWS-NEXT: %ntc.indirect_addr = alloca ptr, align 8 |
| // WINDOWS-NEXT: store ptr %ntc, ptr %ntc.indirect_addr, align 8 |
| // WINDOWS-NEXT: %0 = getelementptr i8, ptr %ntc, i32 5 |
| // WINDOWS-NEXT: store i8 0, ptr %0, align 1 |
| // WINDOWS-NEXT: %1 = getelementptr i8, ptr %ntc, i32 6 |
| // WINDOWS-NEXT: store i8 0, ptr %1, align 2 |
| // WINDOWS-NEXT: %2 = getelementptr i8, ptr %ntc, i32 7 |
| // WINDOWS-NEXT: store i8 0, ptr %2, align 1 |
| // WINDOWS-NEXT: call void @"??1NonTriviallyCopyable@@QEAA@XZ"(ptr noundef nonnull align 4 dead_on_return(8) dereferenceable(8) %ntc) #1 |
| // WINDOWS-NEXT: ret void |
| // |
| void testNonTriviallyCopyable(NonTriviallyCopyable ntc) { |
| __builtin_clear_padding(&ntc); |
| } |
| |
| typedef float Float3Vec __attribute__((ext_vector_type(3))); |
| typedef long double LongDouble3Vec __attribute__((ext_vector_type(3))); |
| |
| // LINUX-LABEL: define dso_local void @_Z18testAttributedTypePDv3_f( |
| // LINUX-SAME: ptr noundef [[V:%.*]]) #[[ATTR0]] { |
| // LINUX-NEXT: [[ENTRY:.*:]] |
| // LINUX-NEXT: [[V_ADDR:%.*]] = alloca ptr, align 8 |
| // LINUX-NEXT: store ptr [[V]], ptr [[V_ADDR]], align 8 |
| // LINUX-NEXT: [[TMP0:%.*]] = load ptr, ptr [[V_ADDR]], align 8 |
| // LINUX-NEXT: [[TMP1:%.*]] = getelementptr i8, ptr [[TMP0]], i32 12 |
| // LINUX-NEXT: store i8 0, ptr [[TMP1]], align 4 |
| // LINUX-NEXT: [[TMP2:%.*]] = getelementptr i8, ptr [[TMP0]], i32 13 |
| // LINUX-NEXT: store i8 0, ptr [[TMP2]], align 1 |
| // LINUX-NEXT: [[TMP3:%.*]] = getelementptr i8, ptr [[TMP0]], i32 14 |
| // LINUX-NEXT: store i8 0, ptr [[TMP3]], align 2 |
| // LINUX-NEXT: [[TMP4:%.*]] = getelementptr i8, ptr [[TMP0]], i32 15 |
| // LINUX-NEXT: store i8 0, ptr [[TMP4]], align 1 |
| // LINUX-NEXT: ret void |
| // |
| // WINDOWS-LABEL: define dso_local void @"?testAttributedType@@YAXPEAT?$__vector@M$02@__clang@@@Z"(ptr noundef %v) #0 { |
| // WINDOWS-NEXT: entry: |
| // WINDOWS-NEXT: %v.addr = alloca ptr, align 8 |
| // WINDOWS-NEXT: store ptr %v, ptr %v.addr, align 8 |
| // WINDOWS-NEXT: %0 = load ptr, ptr %v.addr, align 8 |
| // WINDOWS-NEXT: %1 = getelementptr i8, ptr %0, i32 12 |
| // WINDOWS-NEXT: store i8 0, ptr %1, align 4 |
| // WINDOWS-NEXT: %2 = getelementptr i8, ptr %0, i32 13 |
| // WINDOWS-NEXT: store i8 0, ptr %2, align 1 |
| // WINDOWS-NEXT: %3 = getelementptr i8, ptr %0, i32 14 |
| // WINDOWS-NEXT: store i8 0, ptr %3, align 2 |
| // WINDOWS-NEXT: %4 = getelementptr i8, ptr %0, i32 15 |
| // WINDOWS-NEXT: store i8 0, ptr %4, align 1 |
| // WINDOWS-NEXT: ret void |
| // |
| void testAttributedType(Float3Vec* v) { |
| __builtin_clear_padding(v); |
| } |
| |
| // LINUX-LABEL: define dso_local void @_Z28testAttributedLongDoubleTypePDv3_e( |
| // LINUX-SAME: ptr noundef [[V:%.*]]) #[[ATTR0]] { |
| // LINUX-NEXT: [[ENTRY:.*:]] |
| // LINUX-NEXT: [[V_ADDR:%.*]] = alloca ptr, align 8 |
| // LINUX-NEXT: store ptr [[V]], ptr [[V_ADDR]], align 8 |
| // LINUX-NEXT: [[TMP0:%.*]] = load ptr, ptr [[V_ADDR]], align 8 |
| // LINUX-NEXT: [[TMP1:%.*]] = getelementptr i8, ptr [[TMP0]], i32 30 |
| // LINUX-NEXT: store i8 0, ptr [[TMP1]], align 2 |
| // LINUX-NEXT: [[TMP2:%.*]] = getelementptr i8, ptr [[TMP0]], i32 31 |
| // LINUX-NEXT: store i8 0, ptr [[TMP2]], align 1 |
| // LINUX-NEXT: [[TMP3:%.*]] = getelementptr i8, ptr [[TMP0]], i32 32 |
| // LINUX-NEXT: store i8 0, ptr [[TMP3]], align 32 |
| // LINUX-NEXT: [[TMP4:%.*]] = getelementptr i8, ptr [[TMP0]], i32 33 |
| // LINUX-NEXT: store i8 0, ptr [[TMP4]], align 1 |
| // LINUX-NEXT: [[TMP5:%.*]] = getelementptr i8, ptr [[TMP0]], i32 34 |
| // LINUX-NEXT: store i8 0, ptr [[TMP5]], align 2 |
| // LINUX-NEXT: [[TMP6:%.*]] = getelementptr i8, ptr [[TMP0]], i32 35 |
| // LINUX-NEXT: store i8 0, ptr [[TMP6]], align 1 |
| // LINUX-NEXT: [[TMP7:%.*]] = getelementptr i8, ptr [[TMP0]], i32 36 |
| // LINUX-NEXT: store i8 0, ptr [[TMP7]], align 4 |
| // LINUX-NEXT: [[TMP8:%.*]] = getelementptr i8, ptr [[TMP0]], i32 37 |
| // LINUX-NEXT: store i8 0, ptr [[TMP8]], align 1 |
| // LINUX-NEXT: [[TMP9:%.*]] = getelementptr i8, ptr [[TMP0]], i32 38 |
| // LINUX-NEXT: store i8 0, ptr [[TMP9]], align 2 |
| // LINUX-NEXT: [[TMP10:%.*]] = getelementptr i8, ptr [[TMP0]], i32 39 |
| // LINUX-NEXT: store i8 0, ptr [[TMP10]], align 1 |
| // LINUX-NEXT: [[TMP11:%.*]] = getelementptr i8, ptr [[TMP0]], i32 40 |
| // LINUX-NEXT: store i8 0, ptr [[TMP11]], align 8 |
| // LINUX-NEXT: [[TMP12:%.*]] = getelementptr i8, ptr [[TMP0]], i32 41 |
| // LINUX-NEXT: store i8 0, ptr [[TMP12]], align 1 |
| // LINUX-NEXT: [[TMP13:%.*]] = getelementptr i8, ptr [[TMP0]], i32 42 |
| // LINUX-NEXT: store i8 0, ptr [[TMP13]], align 2 |
| // LINUX-NEXT: [[TMP14:%.*]] = getelementptr i8, ptr [[TMP0]], i32 43 |
| // LINUX-NEXT: store i8 0, ptr [[TMP14]], align 1 |
| // LINUX-NEXT: [[TMP15:%.*]] = getelementptr i8, ptr [[TMP0]], i32 44 |
| // LINUX-NEXT: store i8 0, ptr [[TMP15]], align 4 |
| // LINUX-NEXT: [[TMP16:%.*]] = getelementptr i8, ptr [[TMP0]], i32 45 |
| // LINUX-NEXT: store i8 0, ptr [[TMP16]], align 1 |
| // LINUX-NEXT: [[TMP17:%.*]] = getelementptr i8, ptr [[TMP0]], i32 46 |
| // LINUX-NEXT: store i8 0, ptr [[TMP17]], align 2 |
| // LINUX-NEXT: [[TMP18:%.*]] = getelementptr i8, ptr [[TMP0]], i32 47 |
| // LINUX-NEXT: store i8 0, ptr [[TMP18]], align 1 |
| // LINUX-NEXT: [[TMP19:%.*]] = getelementptr i8, ptr [[TMP0]], i32 48 |
| // LINUX-NEXT: store i8 0, ptr [[TMP19]], align 16 |
| // LINUX-NEXT: [[TMP20:%.*]] = getelementptr i8, ptr [[TMP0]], i32 49 |
| // LINUX-NEXT: store i8 0, ptr [[TMP20]], align 1 |
| // LINUX-NEXT: [[TMP21:%.*]] = getelementptr i8, ptr [[TMP0]], i32 50 |
| // LINUX-NEXT: store i8 0, ptr [[TMP21]], align 2 |
| // LINUX-NEXT: [[TMP22:%.*]] = getelementptr i8, ptr [[TMP0]], i32 51 |
| // LINUX-NEXT: store i8 0, ptr [[TMP22]], align 1 |
| // LINUX-NEXT: [[TMP23:%.*]] = getelementptr i8, ptr [[TMP0]], i32 52 |
| // LINUX-NEXT: store i8 0, ptr [[TMP23]], align 4 |
| // LINUX-NEXT: [[TMP24:%.*]] = getelementptr i8, ptr [[TMP0]], i32 53 |
| // LINUX-NEXT: store i8 0, ptr [[TMP24]], align 1 |
| // LINUX-NEXT: [[TMP25:%.*]] = getelementptr i8, ptr [[TMP0]], i32 54 |
| // LINUX-NEXT: store i8 0, ptr [[TMP25]], align 2 |
| // LINUX-NEXT: [[TMP26:%.*]] = getelementptr i8, ptr [[TMP0]], i32 55 |
| // LINUX-NEXT: store i8 0, ptr [[TMP26]], align 1 |
| // LINUX-NEXT: [[TMP27:%.*]] = getelementptr i8, ptr [[TMP0]], i32 56 |
| // LINUX-NEXT: store i8 0, ptr [[TMP27]], align 8 |
| // LINUX-NEXT: [[TMP28:%.*]] = getelementptr i8, ptr [[TMP0]], i32 57 |
| // LINUX-NEXT: store i8 0, ptr [[TMP28]], align 1 |
| // LINUX-NEXT: [[TMP29:%.*]] = getelementptr i8, ptr [[TMP0]], i32 58 |
| // LINUX-NEXT: store i8 0, ptr [[TMP29]], align 2 |
| // LINUX-NEXT: [[TMP30:%.*]] = getelementptr i8, ptr [[TMP0]], i32 59 |
| // LINUX-NEXT: store i8 0, ptr [[TMP30]], align 1 |
| // LINUX-NEXT: [[TMP31:%.*]] = getelementptr i8, ptr [[TMP0]], i32 60 |
| // LINUX-NEXT: store i8 0, ptr [[TMP31]], align 4 |
| // LINUX-NEXT: [[TMP32:%.*]] = getelementptr i8, ptr [[TMP0]], i32 61 |
| // LINUX-NEXT: store i8 0, ptr [[TMP32]], align 1 |
| // LINUX-NEXT: [[TMP33:%.*]] = getelementptr i8, ptr [[TMP0]], i32 62 |
| // LINUX-NEXT: store i8 0, ptr [[TMP33]], align 2 |
| // LINUX-NEXT: [[TMP34:%.*]] = getelementptr i8, ptr [[TMP0]], i32 63 |
| // LINUX-NEXT: store i8 0, ptr [[TMP34]], align 1 |
| // LINUX-NEXT: ret void |
| // |
| // WINDOWS-LABEL: define dso_local void @"?testAttributedLongDoubleType@@YAXPEAT?$__vector@O$02@__clang@@@Z"(ptr noundef %v) #0 { |
| // WINDOWS-NEXT: entry: |
| // WINDOWS-NEXT: %v.addr = alloca ptr, align 8 |
| // WINDOWS-NEXT: store ptr %v, ptr %v.addr, align 8 |
| // WINDOWS-NEXT: %0 = load ptr, ptr %v.addr, align 8 |
| // WINDOWS-NEXT: %1 = getelementptr i8, ptr %0, i32 24 |
| // WINDOWS-NEXT: store i8 0, ptr %1, align 8 |
| // WINDOWS-NEXT: %2 = getelementptr i8, ptr %0, i32 25 |
| // WINDOWS-NEXT: store i8 0, ptr %2, align 1 |
| // WINDOWS-NEXT: %3 = getelementptr i8, ptr %0, i32 26 |
| // WINDOWS-NEXT: store i8 0, ptr %3, align 2 |
| // WINDOWS-NEXT: %4 = getelementptr i8, ptr %0, i32 27 |
| // WINDOWS-NEXT: store i8 0, ptr %4, align 1 |
| // WINDOWS-NEXT: %5 = getelementptr i8, ptr %0, i32 28 |
| // WINDOWS-NEXT: store i8 0, ptr %5, align 4 |
| // WINDOWS-NEXT: %6 = getelementptr i8, ptr %0, i32 29 |
| // WINDOWS-NEXT: store i8 0, ptr %6, align 1 |
| // WINDOWS-NEXT: %7 = getelementptr i8, ptr %0, i32 30 |
| // WINDOWS-NEXT: store i8 0, ptr %7, align 2 |
| // WINDOWS-NEXT: %8 = getelementptr i8, ptr %0, i32 31 |
| // WINDOWS-NEXT: store i8 0, ptr %8, align 1 |
| // WINDOWS-NEXT: ret void |
| // |
| void testAttributedLongDoubleType(LongDouble3Vec *v) { |
| // long double elements occupy [0-9], [16-25], [32-41] on x86. |
| __builtin_clear_padding(v); |
| } |
| |
| struct UnnamedBitfieldSingleBit { |
| unsigned char a : 3; |
| unsigned char : 1; |
| unsigned char b : 4; |
| }; |
| |
| // LINUX-LABEL: define dso_local void @_Z28testUnnamedBitfieldSingleBitP24UnnamedBitfieldSingleBit( |
| // LINUX-SAME: ptr noundef [[S:%.*]]) #[[ATTR0]] { |
| // LINUX-NEXT: [[ENTRY:.*:]] |
| // LINUX-NEXT: [[S_ADDR:%.*]] = alloca ptr, align 8 |
| // LINUX-NEXT: store ptr [[S]], ptr [[S_ADDR]], align 8 |
| // LINUX-NEXT: [[TMP0:%.*]] = load ptr, ptr [[S_ADDR]], align 8 |
| // LINUX-NEXT: [[TMP1:%.*]] = getelementptr i8, ptr [[TMP0]], i32 0 |
| // LINUX-NEXT: [[TMP2:%.*]] = load i8, ptr [[TMP1]], align 1 |
| // LINUX-NEXT: [[TMP3:%.*]] = and i8 [[TMP2]], -9 |
| // LINUX-NEXT: store i8 [[TMP3]], ptr [[TMP1]], align 1 |
| // LINUX-NEXT: ret void |
| // |
| // WINDOWS-LABEL: define dso_local void @"?testUnnamedBitfieldSingleBit@@YAXPEAUUnnamedBitfieldSingleBit@@@Z"(ptr noundef %s) #0 { |
| // WINDOWS-NEXT: entry: |
| // WINDOWS-NEXT: %s.addr = alloca ptr, align 8 |
| // WINDOWS-NEXT: store ptr %s, ptr %s.addr, align 8 |
| // WINDOWS-NEXT: %0 = load ptr, ptr %s.addr, align 8 |
| // WINDOWS-NEXT: %1 = getelementptr i8, ptr %0, i32 0 |
| // WINDOWS-NEXT: %2 = load i8, ptr %1, align 1 |
| // WINDOWS-NEXT: %3 = and i8 %2, -9 |
| // WINDOWS-NEXT: store i8 %3, ptr %1, align 1 |
| // WINDOWS-NEXT: ret void |
| // |
| void testUnnamedBitfieldSingleBit(struct UnnamedBitfieldSingleBit *s) { |
| // byte 0: a[bits 0-2], unnamed[bit 3], b[bits 4-7] |
| // bit 3 must be cleared |
| // Mask: 0b11110111 == -9 |
| __builtin_clear_padding(s); |
| } |
| |
| struct UnnamedBitfieldMiddle { |
| unsigned char a : 3; |
| unsigned char : 2; |
| unsigned char b : 3; |
| }; |
| |
| // LINUX-LABEL: define dso_local void @_Z25testUnnamedBitfieldMiddleP21UnnamedBitfieldMiddle( |
| // LINUX-SAME: ptr noundef [[S:%.*]]) #[[ATTR0]] { |
| // LINUX-NEXT: [[ENTRY:.*:]] |
| // LINUX-NEXT: [[S_ADDR:%.*]] = alloca ptr, align 8 |
| // LINUX-NEXT: store ptr [[S]], ptr [[S_ADDR]], align 8 |
| // LINUX-NEXT: [[TMP0:%.*]] = load ptr, ptr [[S_ADDR]], align 8 |
| // LINUX-NEXT: [[TMP1:%.*]] = getelementptr i8, ptr [[TMP0]], i32 0 |
| // LINUX-NEXT: [[TMP2:%.*]] = load i8, ptr [[TMP1]], align 1 |
| // LINUX-NEXT: [[TMP3:%.*]] = and i8 [[TMP2]], -25 |
| // LINUX-NEXT: store i8 [[TMP3]], ptr [[TMP1]], align 1 |
| // LINUX-NEXT: ret void |
| // |
| // WINDOWS-LABEL: define dso_local void @"?testUnnamedBitfieldMiddle@@YAXPEAUUnnamedBitfieldMiddle@@@Z"(ptr noundef %s) #0 { |
| // WINDOWS-NEXT: entry: |
| // WINDOWS-NEXT: %s.addr = alloca ptr, align 8 |
| // WINDOWS-NEXT: store ptr %s, ptr %s.addr, align 8 |
| // WINDOWS-NEXT: %0 = load ptr, ptr %s.addr, align 8 |
| // WINDOWS-NEXT: %1 = getelementptr i8, ptr %0, i32 0 |
| // WINDOWS-NEXT: %2 = load i8, ptr %1, align 1 |
| // WINDOWS-NEXT: %3 = and i8 %2, -25 |
| // WINDOWS-NEXT: store i8 %3, ptr %1, align 1 |
| // WINDOWS-NEXT: ret void |
| // |
| void testUnnamedBitfieldMiddle(struct UnnamedBitfieldMiddle *s) { |
| // byte 0: a[0-2], unnamed[3-4], b[5-7] |
| // bits 3-4 must be cleared |
| // Mask: 0b11100111 == -25 |
| __builtin_clear_padding(s); |
| } |
| |
| struct UnnamedBitfieldSurrounding { |
| unsigned char : 2; |
| unsigned char a : 4; |
| unsigned char : 2; |
| }; |
| |
| // LINUX-LABEL: define dso_local void @_Z30testUnnamedBitfieldSurroundingP26UnnamedBitfieldSurrounding( |
| // LINUX-SAME: ptr noundef [[S:%.*]]) #[[ATTR0]] { |
| // LINUX-NEXT: [[ENTRY:.*:]] |
| // LINUX-NEXT: [[S_ADDR:%.*]] = alloca ptr, align 8 |
| // LINUX-NEXT: store ptr [[S]], ptr [[S_ADDR]], align 8 |
| // LINUX-NEXT: [[TMP0:%.*]] = load ptr, ptr [[S_ADDR]], align 8 |
| // LINUX-NEXT: [[TMP1:%.*]] = getelementptr i8, ptr [[TMP0]], i32 0 |
| // LINUX-NEXT: [[TMP2:%.*]] = load i8, ptr [[TMP1]], align 1 |
| // LINUX-NEXT: [[TMP3:%.*]] = and i8 [[TMP2]], -4 |
| // LINUX-NEXT: store i8 [[TMP3]], ptr [[TMP1]], align 1 |
| // LINUX-NEXT: [[TMP4:%.*]] = getelementptr i8, ptr [[TMP0]], i32 0 |
| // LINUX-NEXT: [[TMP5:%.*]] = load i8, ptr [[TMP4]], align 1 |
| // LINUX-NEXT: [[TMP6:%.*]] = and i8 [[TMP5]], 63 |
| // LINUX-NEXT: store i8 [[TMP6]], ptr [[TMP4]], align 1 |
| // LINUX-NEXT: ret void |
| // |
| // WINDOWS-LABEL: define dso_local void @"?testUnnamedBitfieldSurrounding@@YAXPEAUUnnamedBitfieldSurrounding@@@Z"(ptr noundef %s) #0 { |
| // WINDOWS-NEXT: entry: |
| // WINDOWS-NEXT: %s.addr = alloca ptr, align 8 |
| // WINDOWS-NEXT: store ptr %s, ptr %s.addr, align 8 |
| // WINDOWS-NEXT: %0 = load ptr, ptr %s.addr, align 8 |
| // WINDOWS-NEXT: %1 = getelementptr i8, ptr %0, i32 0 |
| // WINDOWS-NEXT: %2 = load i8, ptr %1, align 1 |
| // WINDOWS-NEXT: %3 = and i8 %2, -4 |
| // WINDOWS-NEXT: store i8 %3, ptr %1, align 1 |
| // WINDOWS-NEXT: %4 = getelementptr i8, ptr %0, i32 0 |
| // WINDOWS-NEXT: %5 = load i8, ptr %4, align 1 |
| // WINDOWS-NEXT: %6 = and i8 %5, 63 |
| // WINDOWS-NEXT: store i8 %6, ptr %4, align 1 |
| // WINDOWS-NEXT: ret void |
| // |
| void testUnnamedBitfieldSurrounding(struct UnnamedBitfieldSurrounding *s) { |
| // byte 0: unnamed[0-1], a[2-5], unnamed[6-7] |
| // bits 0-1 and 6-7 must be cleared |
| // Masks: |
| // 0b11111100 == -4 |
| // 0b00111111 == 63 |
| __builtin_clear_padding(s); |
| } |
| |
| struct UnnamedZeroWidthBitfield { |
| unsigned char a : 4; |
| unsigned int : 0; |
| unsigned int b : 4; |
| }; |
| |
| // LINUX-LABEL: define dso_local void @_Z28testUnnamedZeroWidthBitfieldP24UnnamedZeroWidthBitfield( |
| // LINUX-SAME: ptr noundef [[S:%.*]]) #[[ATTR0]] { |
| // LINUX-NEXT: [[ENTRY:.*:]] |
| // LINUX-NEXT: [[S_ADDR:%.*]] = alloca ptr, align 8 |
| // LINUX-NEXT: store ptr [[S]], ptr [[S_ADDR]], align 8 |
| // LINUX-NEXT: [[TMP0:%.*]] = load ptr, ptr [[S_ADDR]], align 8 |
| // LINUX-NEXT: [[TMP1:%.*]] = getelementptr i8, ptr [[TMP0]], i32 0 |
| // LINUX-NEXT: [[TMP2:%.*]] = load i8, ptr [[TMP1]], align 4 |
| // LINUX-NEXT: [[TMP3:%.*]] = and i8 [[TMP2]], 15 |
| // LINUX-NEXT: store i8 [[TMP3]], ptr [[TMP1]], align 4 |
| // LINUX-NEXT: [[TMP4:%.*]] = getelementptr i8, ptr [[TMP0]], i32 1 |
| // LINUX-NEXT: store i8 0, ptr [[TMP4]], align 1 |
| // LINUX-NEXT: [[TMP5:%.*]] = getelementptr i8, ptr [[TMP0]], i32 2 |
| // LINUX-NEXT: store i8 0, ptr [[TMP5]], align 2 |
| // LINUX-NEXT: [[TMP6:%.*]] = getelementptr i8, ptr [[TMP0]], i32 3 |
| // LINUX-NEXT: store i8 0, ptr [[TMP6]], align 1 |
| // LINUX-NEXT: [[TMP7:%.*]] = getelementptr i8, ptr [[TMP0]], i32 4 |
| // LINUX-NEXT: [[TMP8:%.*]] = load i8, ptr [[TMP7]], align 4 |
| // LINUX-NEXT: [[TMP9:%.*]] = and i8 [[TMP8]], 15 |
| // LINUX-NEXT: store i8 [[TMP9]], ptr [[TMP7]], align 4 |
| // LINUX-NEXT: [[TMP10:%.*]] = getelementptr i8, ptr [[TMP0]], i32 5 |
| // LINUX-NEXT: store i8 0, ptr [[TMP10]], align 1 |
| // LINUX-NEXT: [[TMP11:%.*]] = getelementptr i8, ptr [[TMP0]], i32 6 |
| // LINUX-NEXT: store i8 0, ptr [[TMP11]], align 2 |
| // LINUX-NEXT: [[TMP12:%.*]] = getelementptr i8, ptr [[TMP0]], i32 7 |
| // LINUX-NEXT: store i8 0, ptr [[TMP12]], align 1 |
| // LINUX-NEXT: ret void |
| // |
| // WINDOWS-LABEL: define dso_local void @"?testUnnamedZeroWidthBitfield@@YAXPEAUUnnamedZeroWidthBitfield@@@Z"(ptr noundef %s) #0 { |
| // WINDOWS-NEXT: entry: |
| // WINDOWS-NEXT: %s.addr = alloca ptr, align 8 |
| // WINDOWS-NEXT: store ptr %s, ptr %s.addr, align 8 |
| // WINDOWS-NEXT: %0 = load ptr, ptr %s.addr, align 8 |
| // WINDOWS-NEXT: %1 = getelementptr i8, ptr %0, i32 0 |
| // WINDOWS-NEXT: %2 = load i8, ptr %1, align 4 |
| // WINDOWS-NEXT: %3 = and i8 %2, 15 |
| // WINDOWS-NEXT: store i8 %3, ptr %1, align 4 |
| // WINDOWS-NEXT: %4 = getelementptr i8, ptr %0, i32 1 |
| // WINDOWS-NEXT: store i8 0, ptr %4, align 1 |
| // WINDOWS-NEXT: %5 = getelementptr i8, ptr %0, i32 2 |
| // WINDOWS-NEXT: store i8 0, ptr %5, align 2 |
| // WINDOWS-NEXT: %6 = getelementptr i8, ptr %0, i32 3 |
| // WINDOWS-NEXT: store i8 0, ptr %6, align 1 |
| // WINDOWS-NEXT: %7 = getelementptr i8, ptr %0, i32 4 |
| // WINDOWS-NEXT: %8 = load i8, ptr %7, align 4 |
| // WINDOWS-NEXT: %9 = and i8 %8, 15 |
| // WINDOWS-NEXT: store i8 %9, ptr %7, align 4 |
| // WINDOWS-NEXT: %10 = getelementptr i8, ptr %0, i32 5 |
| // WINDOWS-NEXT: store i8 0, ptr %10, align 1 |
| // WINDOWS-NEXT: %11 = getelementptr i8, ptr %0, i32 6 |
| // WINDOWS-NEXT: store i8 0, ptr %11, align 2 |
| // WINDOWS-NEXT: %12 = getelementptr i8, ptr %0, i32 7 |
| // WINDOWS-NEXT: store i8 0, ptr %12, align 1 |
| // WINDOWS-NEXT: ret void |
| // |
| void testUnnamedZeroWidthBitfield(struct UnnamedZeroWidthBitfield *s) { |
| // byte 0: a[0-3], unnamed[4-7] |
| // bytes 1-3: struct padding |
| // bytes 4-7: b[bits 0-3], tail padding[bits 4-31] |
| // |
| // byte 0: clear bits 4-7 |
| // mask: 0b00001111 == 15 |
| // |
| // byte 1-3: clear all bits |
| // 3 x store i8 0 |
| // |
| // byte 4-7: clear bits 4-31 |
| // mask: 0b00001111 == 15 |
| // 3 x store i8 0 |
| __builtin_clear_padding(s); |
| } |
| |
| struct UnnamedBitfieldMultiByte { |
| unsigned short a : 4; |
| unsigned short : 8; |
| unsigned short b : 4; |
| }; |
| |
| // LINUX-LABEL: define dso_local void @_Z28testUnnamedBitfieldMultiByteP24UnnamedBitfieldMultiByte( |
| // LINUX-SAME: ptr noundef [[S:%.*]]) #[[ATTR0]] { |
| // LINUX-NEXT: [[ENTRY:.*:]] |
| // LINUX-NEXT: [[S_ADDR:%.*]] = alloca ptr, align 8 |
| // LINUX-NEXT: store ptr [[S]], ptr [[S_ADDR]], align 8 |
| // LINUX-NEXT: [[TMP0:%.*]] = load ptr, ptr [[S_ADDR]], align 8 |
| // LINUX-NEXT: [[TMP1:%.*]] = getelementptr i8, ptr [[TMP0]], i32 0 |
| // LINUX-NEXT: [[TMP2:%.*]] = load i8, ptr [[TMP1]], align 2 |
| // LINUX-NEXT: [[TMP3:%.*]] = and i8 [[TMP2]], 15 |
| // LINUX-NEXT: store i8 [[TMP3]], ptr [[TMP1]], align 2 |
| // LINUX-NEXT: [[TMP4:%.*]] = getelementptr i8, ptr [[TMP0]], i32 1 |
| // LINUX-NEXT: [[TMP5:%.*]] = load i8, ptr [[TMP4]], align 1 |
| // LINUX-NEXT: [[TMP6:%.*]] = and i8 [[TMP5]], -16 |
| // LINUX-NEXT: store i8 [[TMP6]], ptr [[TMP4]], align 1 |
| // LINUX-NEXT: ret void |
| // |
| // WINDOWS-LABEL: define dso_local void @"?testUnnamedBitfieldMultiByte@@YAXPEAUUnnamedBitfieldMultiByte@@@Z"(ptr noundef %s) #0 { |
| // WINDOWS-NEXT: entry: |
| // WINDOWS-NEXT: %s.addr = alloca ptr, align 8 |
| // WINDOWS-NEXT: store ptr %s, ptr %s.addr, align 8 |
| // WINDOWS-NEXT: %0 = load ptr, ptr %s.addr, align 8 |
| // WINDOWS-NEXT: %1 = getelementptr i8, ptr %0, i32 0 |
| // WINDOWS-NEXT: %2 = load i8, ptr %1, align 2 |
| // WINDOWS-NEXT: %3 = and i8 %2, 15 |
| // WINDOWS-NEXT: store i8 %3, ptr %1, align 2 |
| // WINDOWS-NEXT: %4 = getelementptr i8, ptr %0, i32 1 |
| // WINDOWS-NEXT: %5 = load i8, ptr %4, align 1 |
| // WINDOWS-NEXT: %6 = and i8 %5, -16 |
| // WINDOWS-NEXT: store i8 %6, ptr %4, align 1 |
| // WINDOWS-NEXT: ret void |
| // |
| void testUnnamedBitfieldMultiByte(struct UnnamedBitfieldMultiByte *s) { |
| // 2 bytes: a[0-3], unnamed[4-11], b[12-15] |
| // byte 0: clear bits 4-7 |
| // byte 1: clear bits 0-3 |
| // |
| // Masks: |
| // 0b00001111 == 15 |
| // 0b11110000 == -16 |
| __builtin_clear_padding(s); |
| } |
