derek.holloway
7502bf64a4
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75 lines
3.3 KiB
LLVM
75 lines
3.3 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --function-signature --scrub-attributes
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; RUN: opt < %s -passes=argpromotion -S | FileCheck %s
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declare void @sink(i32)
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define internal void @test(ptr %X) !dbg !2 {
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; CHECK-LABEL: define {{[^@]+}}@test
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; CHECK-SAME: (i32 [[X_0_VAL_0_VAL:%.*]]) !dbg [[DBG3:![0-9]+]] {
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; CHECK-NEXT: call void @sink(i32 [[X_0_VAL_0_VAL]])
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; CHECK-NEXT: ret void
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;
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%1 = load ptr, ptr %X, align 8
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%2 = load i32, ptr %1, align 8
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call void @sink(i32 %2)
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ret void
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}
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%struct.pair = type { i32, i32 }
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; Do not promote because there is a store of the pointer %P itself. Even if %P
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; had been promoted as a byval argument, the result would have been not
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; optimizable for SROA.
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define internal void @test_byval(ptr byval(%struct.pair) align 4 %P) {
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; CHECK-LABEL: define {{[^@]+}}@test_byval
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; CHECK-SAME: (ptr byval([[STRUCT_PAIR:%.*]]) align 4 [[P:%.*]]) {
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; CHECK-NEXT: [[TMP1:%.*]] = alloca ptr, align 8
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; CHECK-NEXT: store ptr [[P]], ptr [[TMP1]], align 8
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; CHECK-NEXT: ret void
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;
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%1 = alloca ptr, align 8
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store ptr %P, ptr %1, align 8 ; to protect from promotion
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ret void
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}
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define void @caller(ptr %Y, ptr %P) {
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; CHECK-LABEL: define {{[^@]+}}@caller
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; CHECK-SAME: (ptr [[Y:%.*]], ptr [[P:%.*]]) {
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; CHECK-NEXT: [[Y_VAL:%.*]] = load ptr, ptr [[Y]], align 8, !dbg [[DBG4:![0-9]+]]
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; CHECK-NEXT: [[Y_VAL_VAL:%.*]] = load i32, ptr [[Y_VAL]], align 8, !dbg [[DBG4]]
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; CHECK-NEXT: call void @test(i32 [[Y_VAL_VAL]]), !dbg [[DBG4]]
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; CHECK-NEXT: call void @test_byval(ptr byval([[STRUCT_PAIR:%.*]]) align 4 [[P]]), !dbg [[DBG5:![0-9]+]]
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; CHECK-NEXT: ret void
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;
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call void @test(ptr %Y), !dbg !1
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call void @test_byval(ptr byval(%struct.pair) align 4 %P), !dbg !6
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ret void
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}
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!llvm.module.flags = !{!0}
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!llvm.dbg.cu = !{!3}
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!0 = !{i32 2, !"Debug Info Version", i32 3}
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!1 = !DILocation(line: 8, scope: !2)
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!2 = distinct !DISubprogram(name: "test", file: !5, line: 3, type: !7, isLocal: true, isDefinition: true, flags: DIFlagPrototyped, isOptimized: false, unit: !3, scopeLine: 3, scope: null)
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!3 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.5.0 ", isOptimized: false, emissionKind: LineTablesOnly, file: !5)
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!5 = !DIFile(filename: "test.c", directory: "")
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!6 = !DILocation(line: 9, scope: !2)
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!7 = !DISubroutineType(types: !8)
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!8 = !{null, !9}
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!9 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !10)
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!10 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
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; CHECK: !0 = !{i32 2, !"Debug Info Version", i32 3}
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; CHECK-NEXT: !1 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !2, producer: "clang version 3.5.0 ", isOptimized: false, runtimeVersion: 0, emissionKind: LineTablesOnly)
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; CHECK-NEXT: !2 = !DIFile(filename: "test.c", directory: "")
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; CHECK-NEXT: !3 = distinct !DISubprogram(name: "test", scope: null, file: !2, line: 3, type: !4, scopeLine: 3, flags: DIFlagPrototyped, spFlags: DISPFlagLocalToUnit | DISPFlagDefinition, unit: !1)
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; CHECK-NEXT: !4 = !DISubroutineType(cc: DW_CC_nocall, types: !5)
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; CHECK-NEXT: !5 = !{null, !6}
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; CHECK-NEXT: !6 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !7)
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; CHECK-NEXT: !7 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
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; CHECK-NEXT: !8 = !DILocation(line: 8, scope: !3)
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; CHECK-NEXT: !9 = !DILocation(line: 9, scope: !3)
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