| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --function-signature --scrub-attributes |
| ; RUN: opt < %s -passes=argpromotion -S | FileCheck %s |
| |
| declare void @sink(i32) |
| |
| define internal void @test(ptr %X) !dbg !2 { |
| ; CHECK-LABEL: define {{[^@]+}}@test |
| ; CHECK-SAME: (i32 [[X_0_VAL_0_VAL:%.*]]) !dbg [[DBG3:![0-9]+]] { |
| ; CHECK-NEXT: call void @sink(i32 [[X_0_VAL_0_VAL]]) |
| ; CHECK-NEXT: ret void |
| ; |
| %1 = load ptr, ptr %X, align 8 |
| %2 = load i32, ptr %1, align 8 |
| call void @sink(i32 %2) |
| ret void |
| } |
| |
| %struct.pair = type { i32, i32 } |
| |
| ; Do not promote because there is a store of the pointer %P itself. Even if %P |
| ; had been promoted as a byval argument, the result would have been not |
| ; optimizable for SROA. |
| define internal void @test_byval(ptr byval(%struct.pair) align 4 %P) { |
| ; CHECK-LABEL: define {{[^@]+}}@test_byval |
| ; CHECK-SAME: (ptr byval([[STRUCT_PAIR:%.*]]) align 4 [[P:%.*]]) { |
| ; CHECK-NEXT: [[TMP1:%.*]] = alloca ptr, align 8 |
| ; CHECK-NEXT: store ptr [[P]], ptr [[TMP1]], align 8 |
| ; CHECK-NEXT: ret void |
| ; |
| %1 = alloca ptr, align 8 |
| store ptr %P, ptr %1, align 8 ; to protect from promotion |
| ret void |
| } |
| |
| define void @caller(ptr %Y, ptr %P) { |
| ; CHECK-LABEL: define {{[^@]+}}@caller |
| ; CHECK-SAME: (ptr [[Y:%.*]], ptr [[P:%.*]]) { |
| ; CHECK-NEXT: [[Y_VAL:%.*]] = load ptr, ptr [[Y]], align 8, !dbg [[DBG4:![0-9]+]] |
| ; CHECK-NEXT: [[Y_VAL_VAL:%.*]] = load i32, ptr [[Y_VAL]], align 8, !dbg [[DBG4]] |
| ; CHECK-NEXT: call void @test(i32 [[Y_VAL_VAL]]), !dbg [[DBG4]] |
| ; CHECK-NEXT: call void @test_byval(ptr byval([[STRUCT_PAIR:%.*]]) align 4 [[P]]), !dbg [[DBG5:![0-9]+]] |
| ; CHECK-NEXT: ret void |
| ; |
| call void @test(ptr %Y), !dbg !1 |
| |
| call void @test_byval(ptr byval(%struct.pair) align 4 %P), !dbg !6 |
| ret void |
| } |
| |
| |
| !llvm.module.flags = !{!0} |
| !llvm.dbg.cu = !{!3} |
| |
| !0 = !{i32 2, !"Debug Info Version", i32 3} |
| !1 = !DILocation(line: 8, scope: !2) |
| !2 = distinct !DISubprogram(name: "test", file: !5, line: 3, isLocal: true, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !3, scopeLine: 3, scope: null) |
| !3 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.5.0 ", isOptimized: false, emissionKind: LineTablesOnly, file: !5) |
| !5 = !DIFile(filename: "test.c", directory: "") |
| !6 = !DILocation(line: 9, scope: !2) |