| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py |
| ; Test a pile of objectsize bounds checking. |
| ; RUN: opt < %s -instcombine -S | FileCheck %s |
| ; We need target data to get the sizes of the arrays and structures. |
| target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128" |
| |
| @a = private global [60 x i8] zeroinitializer, align 1 ; <[60 x i8]*> |
| @.str = private constant [8 x i8] c"abcdefg\00" ; <[8 x i8]*> |
| define i32 @foo() nounwind { |
| ; CHECK-LABEL: @foo( |
| ; CHECK-NEXT: ret i32 60 |
| ; |
| %1 = call i32 @llvm.objectsize.i32.p0i8(i8* getelementptr inbounds ([60 x i8], [60 x i8]* @a, i32 0, i32 0), i1 false, i1 false, i1 false) |
| ret i32 %1 |
| } |
| |
| define i8* @bar() nounwind { |
| ; CHECK-LABEL: @bar( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[RETVAL:%.*]] = alloca i8*, align 4 |
| ; CHECK-NEXT: br i1 true, label [[COND_TRUE:%.*]], label [[COND_FALSE:%.*]] |
| ; CHECK: cond.true: |
| ; CHECK-NEXT: [[TMP0:%.*]] = load i8*, i8** [[RETVAL]], align 4 |
| ; CHECK-NEXT: ret i8* [[TMP0]] |
| ; CHECK: cond.false: |
| ; CHECK-NEXT: ret i8* undef |
| ; |
| entry: |
| %retval = alloca i8* |
| %0 = call i32 @llvm.objectsize.i32.p0i8(i8* getelementptr inbounds ([60 x i8], [60 x i8]* @a, i32 0, i32 0), i1 false, i1 false, i1 false) |
| %cmp = icmp ne i32 %0, -1 |
| br i1 %cmp, label %cond.true, label %cond.false |
| |
| cond.true: |
| %1 = load i8*, i8** %retval |
| ret i8* %1 |
| |
| cond.false: |
| %2 = load i8*, i8** %retval |
| ret i8* %2 |
| } |
| |
| define i32 @f() nounwind { |
| ; CHECK-LABEL: @f( |
| ; CHECK-NEXT: ret i32 0 |
| ; |
| %1 = call i32 @llvm.objectsize.i32.p0i8(i8* getelementptr ([60 x i8], [60 x i8]* @a, i32 1, i32 0), i1 false, i1 false, i1 false) |
| ret i32 %1 |
| } |
| |
| @window = external global [0 x i8] |
| |
| define i1 @baz() nounwind { |
| ; CHECK-LABEL: @baz( |
| ; CHECK-NEXT: [[TMP1:%.*]] = tail call i32 @llvm.objectsize.i32.p0i8(i8* getelementptr inbounds ([0 x i8], [0 x i8]* @window, i32 0, i32 0), i1 false, i1 false, i1 false) |
| ; CHECK-NEXT: [[TMP2:%.*]] = icmp eq i32 [[TMP1]], -1 |
| ; CHECK-NEXT: ret i1 [[TMP2]] |
| ; |
| %1 = tail call i32 @llvm.objectsize.i32.p0i8(i8* getelementptr inbounds ([0 x i8], [0 x i8]* @window, i32 0, i32 0), i1 false, i1 false, i1 false) |
| %2 = icmp eq i32 %1, -1 |
| ret i1 %2 |
| } |
| |
| define void @test1(i8* %q, i32 %x) nounwind noinline { |
| ; CHECK-LABEL: @test1( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[TMP0:%.*]] = call i32 @llvm.objectsize.i32.p0i8(i8* getelementptr inbounds ([0 x i8], [0 x i8]* @window, i32 0, i32 10), i1 false, i1 false, i1 false) |
| ; CHECK-NEXT: [[TMP1:%.*]] = icmp eq i32 [[TMP0]], -1 |
| ; CHECK-NEXT: br i1 [[TMP1]], label %"47", label %"46" |
| ; CHECK: "46": |
| ; CHECK-NEXT: unreachable |
| ; CHECK: "47": |
| ; CHECK-NEXT: unreachable |
| ; |
| entry: |
| %0 = call i32 @llvm.objectsize.i32.p0i8(i8* getelementptr inbounds ([0 x i8], [0 x i8]* @window, i32 0, i32 10), i1 false, i1 false, i1 false) ; <i64> [#uses=1] |
| %1 = icmp eq i32 %0, -1 ; <i1> [#uses=1] |
| br i1 %1, label %"47", label %"46" |
| |
| "46": ; preds = %entry |
| unreachable |
| |
| "47": ; preds = %entry |
| unreachable |
| } |
| |
| @.str5 = private constant [9 x i32] [i32 97, i32 98, i32 99, i32 100, i32 0, i32 |
| 101, i32 102, i32 103, i32 0], align 4 |
| define i32 @test2() nounwind { |
| ; CHECK-LABEL: @test2( |
| ; CHECK-NEXT: ret i32 34 |
| ; |
| %1 = call i32 @llvm.objectsize.i32.p0i8(i8* getelementptr (i8, i8* bitcast ([9 x i32]* @.str5 to i8*), i32 2), i1 false, i1 false, i1 false) |
| ret i32 %1 |
| } |
| |
| ; rdar://7674946 |
| @array = internal global [480 x float] zeroinitializer ; <[480 x float]*> [#uses=1] |
| |
| declare i8* @__memcpy_chk(i8*, i8*, i32, i32) nounwind |
| |
| declare i32 @llvm.objectsize.i32.p0i8(i8*, i1, i1, i1) nounwind readonly |
| |
| declare i32 @llvm.objectsize.i32.p1i8(i8 addrspace(1)*, i1, i1, i1) nounwind readonly |
| |
| declare i8* @__inline_memcpy_chk(i8*, i8*, i32) nounwind inlinehint |
| |
| define void @test3() nounwind { |
| ; CHECK-LABEL: @test3( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: br i1 undef, label [[BB11:%.*]], label [[BB12:%.*]] |
| ; CHECK: bb11: |
| ; CHECK-NEXT: unreachable |
| ; CHECK: bb12: |
| ; CHECK-NEXT: [[TMP0:%.*]] = call i8* @__inline_memcpy_chk(i8* bitcast (float* getelementptr inbounds ([480 x float], [480 x float]* @array, i32 0, i32 1) to i8*), i8* undef, i32 512) [[ATTR3:#.*]] |
| ; CHECK-NEXT: unreachable |
| ; |
| entry: |
| br i1 undef, label %bb11, label %bb12 |
| |
| bb11: |
| %0 = getelementptr inbounds float, float* getelementptr inbounds ([480 x float], [480 x float]* @array, i32 0, i32 128), i32 -127 ; <float*> [#uses=1] |
| %1 = bitcast float* %0 to i8* ; <i8*> [#uses=1] |
| %2 = call i32 @llvm.objectsize.i32.p0i8(i8* %1, i1 false, i1 false, i1 false) ; <i32> [#uses=1] |
| %3 = call i8* @__memcpy_chk(i8* undef, i8* undef, i32 512, i32 %2) nounwind ; <i8*> [#uses=0] |
| unreachable |
| |
| bb12: |
| %4 = getelementptr inbounds float, float* getelementptr inbounds ([480 x float], [480 x float]* @array, i32 0, i32 128), i32 -127 ; <float*> [#uses=1] |
| %5 = bitcast float* %4 to i8* ; <i8*> [#uses=1] |
| %6 = call i8* @__inline_memcpy_chk(i8* %5, i8* undef, i32 512) nounwind inlinehint ; <i8*> [#uses=0] |
| unreachable |
| } |
| |
| ; rdar://7718857 |
| |
| %struct.data = type { [100 x i32], [100 x i32], [1024 x i8] } |
| |
| define i32 @test4(i8** %esc) nounwind ssp { |
| ; CHECK-LABEL: @test4( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[TMP0:%.*]] = alloca [[STRUCT_DATA:%.*]], align 8 |
| ; CHECK-NEXT: [[TMP1:%.*]] = bitcast %struct.data* [[TMP0]] to i8* |
| ; CHECK-NEXT: call void @llvm.memset.p0i8.i32(i8* noundef nonnull align 8 dereferenceable(1824) [[TMP1]], i8 0, i32 1824, i1 false) [[ATTR0:#.*]] |
| ; CHECK-NEXT: [[TMP2:%.*]] = bitcast i8** [[ESC:%.*]] to %struct.data** |
| ; CHECK-NEXT: store %struct.data* [[TMP0]], %struct.data** [[TMP2]], align 4 |
| ; CHECK-NEXT: ret i32 0 |
| ; |
| entry: |
| %0 = alloca %struct.data, align 8 |
| %1 = bitcast %struct.data* %0 to i8* |
| %2 = call i32 @llvm.objectsize.i32.p0i8(i8* %1, i1 false, i1 false, i1 false) nounwind |
| %3 = call i8* @__memset_chk(i8* %1, i32 0, i32 1824, i32 %2) nounwind |
| store i8* %1, i8** %esc |
| ret i32 0 |
| } |
| |
| ; rdar://7782496 |
| @s = external global i8* |
| |
| define i8* @test5(i32 %n) nounwind ssp { |
| ; CHECK-LABEL: @test5( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[TMP0:%.*]] = tail call noalias dereferenceable_or_null(20) i8* @malloc(i32 20) [[ATTR0]] |
| ; CHECK-NEXT: [[TMP1:%.*]] = load i8*, i8** @s, align 8 |
| ; CHECK-NEXT: call void @llvm.memcpy.p0i8.p0i8.i32(i8* noundef nonnull align 1 dereferenceable(10) [[TMP0]], i8* noundef nonnull align 1 dereferenceable(10) [[TMP1]], i32 10, i1 false) [[ATTR0]] |
| ; CHECK-NEXT: ret i8* [[TMP0]] |
| ; |
| entry: |
| %0 = tail call noalias i8* @malloc(i32 20) nounwind |
| %1 = tail call i32 @llvm.objectsize.i32.p0i8(i8* %0, i1 false, i1 false, i1 false) |
| %2 = load i8*, i8** @s, align 8 |
| %3 = tail call i8* @__memcpy_chk(i8* %0, i8* %2, i32 10, i32 %1) nounwind |
| ret i8* %0 |
| } |
| |
| define void @test6(i32 %n) nounwind ssp { |
| ; CHECK-LABEL: @test6( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[TMP0:%.*]] = tail call noalias dereferenceable_or_null(20) i8* @malloc(i32 20) [[ATTR0]] |
| ; CHECK-NEXT: [[TMP1:%.*]] = load i8*, i8** @s, align 8 |
| ; CHECK-NEXT: [[TMP2:%.*]] = tail call i8* @__memcpy_chk(i8* [[TMP0]], i8* [[TMP1]], i32 30, i32 20) [[ATTR0]] |
| ; CHECK-NEXT: ret void |
| ; |
| entry: |
| %0 = tail call noalias i8* @malloc(i32 20) nounwind |
| %1 = tail call i32 @llvm.objectsize.i32.p0i8(i8* %0, i1 false, i1 false, i1 false) |
| %2 = load i8*, i8** @s, align 8 |
| %3 = tail call i8* @__memcpy_chk(i8* %0, i8* %2, i32 30, i32 %1) nounwind |
| ret void |
| } |
| |
| declare i8* @__memset_chk(i8*, i32, i32, i32) nounwind |
| |
| declare noalias i8* @malloc(i32) nounwind |
| |
| define i32 @test7(i8** %esc) { |
| ; CHECK-LABEL: @test7( |
| ; CHECK-NEXT: [[ALLOC:%.*]] = call noalias dereferenceable_or_null(48) i8* @malloc(i32 48) [[ATTR0]] |
| ; CHECK-NEXT: store i8* [[ALLOC]], i8** [[ESC:%.*]], align 4 |
| ; CHECK-NEXT: ret i32 32 |
| ; |
| %alloc = call noalias i8* @malloc(i32 48) nounwind |
| store i8* %alloc, i8** %esc |
| %gep = getelementptr inbounds i8, i8* %alloc, i32 16 |
| %objsize = call i32 @llvm.objectsize.i32.p0i8(i8* %gep, i1 false, i1 false, i1 false) nounwind readonly |
| ret i32 %objsize |
| } |
| |
| declare noalias i8* @calloc(i32, i32) nounwind |
| |
| define i32 @test8(i8** %esc) { |
| ; CHECK-LABEL: @test8( |
| ; CHECK-NEXT: [[ALLOC:%.*]] = call noalias dereferenceable_or_null(35) i8* @calloc(i32 5, i32 7) [[ATTR0]] |
| ; CHECK-NEXT: store i8* [[ALLOC]], i8** [[ESC:%.*]], align 4 |
| ; CHECK-NEXT: ret i32 30 |
| ; |
| %alloc = call noalias i8* @calloc(i32 5, i32 7) nounwind |
| store i8* %alloc, i8** %esc |
| %gep = getelementptr inbounds i8, i8* %alloc, i32 5 |
| %objsize = call i32 @llvm.objectsize.i32.p0i8(i8* %gep, i1 false, i1 false, i1 false) nounwind readonly |
| ret i32 %objsize |
| } |
| |
| declare noalias i8* @strdup(i8* nocapture) nounwind |
| declare noalias i8* @strndup(i8* nocapture, i32) nounwind |
| |
| define i32 @test9(i8** %esc) { |
| ; CHECK-LABEL: @test9( |
| ; CHECK-NEXT: [[CALL:%.*]] = tail call dereferenceable_or_null(8) i8* @strdup(i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str, i32 0, i32 0)) [[ATTR0]] |
| ; CHECK-NEXT: store i8* [[CALL]], i8** [[ESC:%.*]], align 8 |
| ; CHECK-NEXT: ret i32 8 |
| ; |
| %call = tail call i8* @strdup(i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str, i64 0, i64 0)) nounwind |
| store i8* %call, i8** %esc, align 8 |
| %1 = tail call i32 @llvm.objectsize.i32.p0i8(i8* %call, i1 true, i1 false, i1 false) |
| ret i32 %1 |
| } |
| |
| define i32 @test10(i8** %esc) { |
| ; CHECK-LABEL: @test10( |
| ; CHECK-NEXT: [[CALL:%.*]] = tail call dereferenceable_or_null(4) i8* @strndup(i8* dereferenceable(8) getelementptr inbounds ([8 x i8], [8 x i8]* @.str, i32 0, i32 0), i32 3) [[ATTR0]] |
| ; CHECK-NEXT: store i8* [[CALL]], i8** [[ESC:%.*]], align 8 |
| ; CHECK-NEXT: ret i32 4 |
| ; |
| %call = tail call i8* @strndup(i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str, i64 0, i64 0), i32 3) nounwind |
| store i8* %call, i8** %esc, align 8 |
| %1 = tail call i32 @llvm.objectsize.i32.p0i8(i8* %call, i1 true, i1 false, i1 false) |
| ret i32 %1 |
| } |
| |
| define i32 @test11(i8** %esc) { |
| ; CHECK-LABEL: @test11( |
| ; CHECK-NEXT: [[STRDUP:%.*]] = call dereferenceable_or_null(8) i8* @strdup(i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str, i32 0, i32 0)) |
| ; CHECK-NEXT: store i8* [[STRDUP]], i8** [[ESC:%.*]], align 8 |
| ; CHECK-NEXT: ret i32 8 |
| ; |
| %call = tail call i8* @strndup(i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str, i64 0, i64 0), i32 7) nounwind |
| store i8* %call, i8** %esc, align 8 |
| %1 = tail call i32 @llvm.objectsize.i32.p0i8(i8* %call, i1 true, i1 false, i1 false) |
| ret i32 %1 |
| } |
| |
| define i32 @test12(i8** %esc) { |
| ; CHECK-LABEL: @test12( |
| ; CHECK-NEXT: [[STRDUP:%.*]] = call dereferenceable_or_null(8) i8* @strdup(i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str, i32 0, i32 0)) |
| ; CHECK-NEXT: store i8* [[STRDUP]], i8** [[ESC:%.*]], align 8 |
| ; CHECK-NEXT: ret i32 8 |
| ; |
| %call = tail call i8* @strndup(i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str, i64 0, i64 0), i32 8) nounwind |
| store i8* %call, i8** %esc, align 8 |
| %1 = tail call i32 @llvm.objectsize.i32.p0i8(i8* %call, i1 true, i1 false, i1 false) |
| ret i32 %1 |
| } |
| |
| define i32 @test13(i8** %esc) { |
| ; CHECK-LABEL: @test13( |
| ; CHECK-NEXT: [[STRDUP:%.*]] = call dereferenceable_or_null(8) i8* @strdup(i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str, i32 0, i32 0)) |
| ; CHECK-NEXT: store i8* [[STRDUP]], i8** [[ESC:%.*]], align 8 |
| ; CHECK-NEXT: ret i32 8 |
| ; |
| %call = tail call i8* @strndup(i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str, i64 0, i64 0), i32 57) nounwind |
| store i8* %call, i8** %esc, align 8 |
| %1 = tail call i32 @llvm.objectsize.i32.p0i8(i8* %call, i1 true, i1 false, i1 false) |
| ret i32 %1 |
| } |
| |
| @globalalias = internal alias [60 x i8], [60 x i8]* @a |
| |
| define i32 @test18() { |
| ; CHECK-LABEL: @test18( |
| ; CHECK-NEXT: ret i32 60 |
| ; |
| %bc = bitcast [60 x i8]* @globalalias to i8* |
| %1 = call i32 @llvm.objectsize.i32.p0i8(i8* %bc, i1 false, i1 false, i1 false) |
| ret i32 %1 |
| } |
| |
| @globalalias2 = weak alias [60 x i8], [60 x i8]* @a |
| |
| define i32 @test19() { |
| ; CHECK-LABEL: @test19( |
| ; CHECK-NEXT: [[TMP1:%.*]] = call i32 @llvm.objectsize.i32.p0i8(i8* getelementptr inbounds ([60 x i8], [60 x i8]* @globalalias2, i32 0, i32 0), i1 false, i1 false, i1 false) |
| ; CHECK-NEXT: ret i32 [[TMP1]] |
| ; |
| %bc = bitcast [60 x i8]* @globalalias2 to i8* |
| %1 = call i32 @llvm.objectsize.i32.p0i8(i8* %bc, i1 false, i1 false, i1 false) |
| ret i32 %1 |
| } |
| |
| define i32 @test20() { |
| ; CHECK-LABEL: @test20( |
| ; CHECK-NEXT: ret i32 0 |
| ; |
| %1 = call i32 @llvm.objectsize.i32.p0i8(i8* null, i1 false, i1 false, i1 false) |
| ret i32 %1 |
| } |
| |
| define i32 @test21() { |
| ; CHECK-LABEL: @test21( |
| ; CHECK-NEXT: ret i32 0 |
| ; |
| %1 = call i32 @llvm.objectsize.i32.p0i8(i8* null, i1 true, i1 false, i1 false) |
| ret i32 %1 |
| } |
| |
| define i32 @test22() { |
| ; CHECK-LABEL: @test22( |
| ; CHECK-NEXT: [[TMP1:%.*]] = call i32 @llvm.objectsize.i32.p0i8(i8* null, i1 false, i1 true, i1 false) |
| ; CHECK-NEXT: ret i32 [[TMP1]] |
| ; |
| %1 = call i32 @llvm.objectsize.i32.p0i8(i8* null, i1 false, i1 true, i1 false) |
| ret i32 %1 |
| } |
| |
| define i32 @test23() { |
| ; CHECK-LABEL: @test23( |
| ; CHECK-NEXT: [[TMP1:%.*]] = call i32 @llvm.objectsize.i32.p0i8(i8* null, i1 true, i1 true, i1 false) |
| ; CHECK-NEXT: ret i32 [[TMP1]] |
| ; |
| %1 = call i32 @llvm.objectsize.i32.p0i8(i8* null, i1 true, i1 true, i1 false) |
| ret i32 %1 |
| } |
| |
| ; 1 is an arbitrary non-zero address space. |
| define i32 @test24() { |
| ; CHECK-LABEL: @test24( |
| ; CHECK-NEXT: [[TMP1:%.*]] = call i32 @llvm.objectsize.i32.p1i8(i8 addrspace(1)* null, i1 false, i1 false, i1 false) |
| ; CHECK-NEXT: ret i32 [[TMP1]] |
| ; |
| %1 = call i32 @llvm.objectsize.i32.p1i8(i8 addrspace(1)* null, i1 false, |
| i1 false, i1 false) |
| ret i32 %1 |
| } |
| |
| define i32 @test25() { |
| ; CHECK-LABEL: @test25( |
| ; CHECK-NEXT: [[TMP1:%.*]] = call i32 @llvm.objectsize.i32.p1i8(i8 addrspace(1)* null, i1 true, i1 false, i1 false) |
| ; CHECK-NEXT: ret i32 [[TMP1]] |
| ; |
| %1 = call i32 @llvm.objectsize.i32.p1i8(i8 addrspace(1)* null, i1 true, |
| i1 false, i1 false) |
| ret i32 %1 |
| } |
| |
| define i32 @test26() { |
| ; CHECK-LABEL: @test26( |
| ; CHECK-NEXT: [[TMP1:%.*]] = call i32 @llvm.objectsize.i32.p1i8(i8 addrspace(1)* null, i1 false, i1 true, i1 false) |
| ; CHECK-NEXT: ret i32 [[TMP1]] |
| ; |
| %1 = call i32 @llvm.objectsize.i32.p1i8(i8 addrspace(1)* null, i1 false, |
| i1 true, i1 false) |
| ret i32 %1 |
| } |
| |
| define i32 @test27() { |
| ; CHECK-LABEL: @test27( |
| ; CHECK-NEXT: [[TMP1:%.*]] = call i32 @llvm.objectsize.i32.p1i8(i8 addrspace(1)* null, i1 true, i1 true, i1 false) |
| ; CHECK-NEXT: ret i32 [[TMP1]] |
| ; |
| %1 = call i32 @llvm.objectsize.i32.p1i8(i8 addrspace(1)* null, i1 true, |
| i1 true, i1 false) |
| ret i32 %1 |
| } |