116 lines
4.3 KiB
LLVM
116 lines
4.3 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 2
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; RUN: opt -passes=instcombine -S < %s | FileCheck %s
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declare void @llvm.init.trampoline(ptr, ptr, ptr)
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declare ptr @llvm.adjust.trampoline(ptr)
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declare i32 @f(ptr nest, i32)
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; Most common case
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define i32 @test0(i32 %n) !dbg !4 {
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; CHECK-LABEL: define i32 @test0
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; CHECK-SAME: (i32 [[N:%.*]]) !dbg [[DBG4:![0-9]+]] {
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; CHECK-NEXT: [[ALLOCA:%.*]] = alloca [10 x i8], align 16
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; CHECK-NEXT: call void @llvm.init.trampoline(ptr nonnull [[ALLOCA]], ptr nonnull @f, ptr null)
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; CHECK-NEXT: [[RET:%.*]] = call i32 @f(ptr nest null, i32 [[N]]), !dbg [[DBG10:![0-9]+]]
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; CHECK-NEXT: ret i32 [[RET]]
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;
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%alloca = alloca [10 x i8], align 16
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call void @llvm.init.trampoline(ptr %alloca, ptr @f,
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ptr null)
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%tramp = call ptr @llvm.adjust.trampoline(ptr %alloca)
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%ret = call i32 %tramp(i32 %n), !dbg !10
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ret i32 %ret
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}
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define i32 @test1(i32 %n, ptr %trampmem) {
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; CHECK-LABEL: define i32 @test1
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; CHECK-SAME: (i32 [[N:%.*]], ptr [[TRAMPMEM:%.*]]) {
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; CHECK-NEXT: call void @llvm.init.trampoline(ptr [[TRAMPMEM]], ptr nonnull @f, ptr null)
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; CHECK-NEXT: [[RET:%.*]] = call i32 @f(ptr nest null, i32 [[N]])
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; CHECK-NEXT: ret i32 [[RET]]
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;
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call void @llvm.init.trampoline(ptr %trampmem,
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ptr @f,
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ptr null)
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%tramp = call ptr @llvm.adjust.trampoline(ptr %trampmem)
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%ret = call i32 %tramp(i32 %n)
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ret i32 %ret
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}
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define i32 @test2(i32 %n, ptr %trampmem) {
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; CHECK-LABEL: define i32 @test2
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; CHECK-SAME: (i32 [[N:%.*]], ptr [[TRAMPMEM:%.*]]) {
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; CHECK-NEXT: [[TRAMP:%.*]] = call ptr @llvm.adjust.trampoline(ptr [[TRAMPMEM]])
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; CHECK-NEXT: [[RET:%.*]] = call i32 [[TRAMP]](i32 [[N]])
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; CHECK-NEXT: ret i32 [[RET]]
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;
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%tramp = call ptr @llvm.adjust.trampoline(ptr %trampmem)
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%ret = call i32 %tramp(i32 %n)
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ret i32 %ret
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}
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define i32 @test3(i32 %n, ptr %trampmem) {
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; CHECK-LABEL: define i32 @test3
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; CHECK-SAME: (i32 [[N:%.*]], ptr [[TRAMPMEM:%.*]]) {
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; CHECK-NEXT: call void @llvm.init.trampoline(ptr [[TRAMPMEM]], ptr nonnull @f, ptr null)
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; CHECK-NEXT: [[RET0:%.*]] = call i32 @f(ptr nest null, i32 [[N]])
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; CHECK-NEXT: [[TRAMP1:%.*]] = call ptr @llvm.adjust.trampoline(ptr [[TRAMPMEM]])
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; CHECK-NEXT: [[RET1:%.*]] = call i32 [[TRAMP1]](i32 [[N]])
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; CHECK-NEXT: ret i32 [[RET1]]
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;
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call void @llvm.init.trampoline(ptr %trampmem,
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ptr @f,
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ptr null)
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%tramp0 = call ptr @llvm.adjust.trampoline(ptr %trampmem)
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%ret0 = call i32 %tramp0(i32 %n)
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;; Not optimized since previous call could be writing.
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%tramp1 = call ptr @llvm.adjust.trampoline(ptr %trampmem)
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%ret1 = call i32 %tramp1(i32 %n)
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ret i32 %ret1
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}
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define i32 @test4(i32 %n) {
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; CHECK-LABEL: define i32 @test4
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; CHECK-SAME: (i32 [[N:%.*]]) {
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; CHECK-NEXT: [[ALLOCA:%.*]] = alloca [10 x i8], align 16
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; CHECK-NEXT: call void @llvm.init.trampoline(ptr nonnull [[ALLOCA]], ptr nonnull @f, ptr null)
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; CHECK-NEXT: [[RET0:%.*]] = call i32 @f(ptr nest null, i32 [[N]])
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; CHECK-NEXT: [[RET1:%.*]] = call i32 @f(ptr nest null, i32 [[N]])
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; CHECK-NEXT: [[RET2:%.*]] = call i32 @f(ptr nest null, i32 [[N]])
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; CHECK-NEXT: ret i32 [[RET2]]
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;
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%alloca = alloca [10 x i8], align 16
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call void @llvm.init.trampoline(ptr %alloca, ptr @f,
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ptr null)
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%tramp0 = call ptr @llvm.adjust.trampoline(ptr %alloca)
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%ret0 = call i32 %tramp0(i32 %n)
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%tramp1 = call ptr @llvm.adjust.trampoline(ptr %alloca)
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%ret1 = call i32 %tramp0(i32 %n)
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%tramp2 = call ptr @llvm.adjust.trampoline(ptr %alloca)
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%ret2 = call i32 %tramp2(i32 %n)
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ret i32 %ret2
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}
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!3}
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!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 3.0 (trunk 127710)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !2)
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!1 = !DIFile(filename: "string.h", directory: "Game")
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!2 = !{}
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!3 = !{i32 1, !"Debug Info Version", i32 3}
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!4 = distinct !DISubprogram(name: "passthru", scope: !1, file: !1, line: 79, type: !5, isLocal: true, isDefinition: true, scopeLine: 79, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !0, retainedNodes: !8)
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!5 = !DISubroutineType(types: !6)
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!6 = !{!7}
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!7 = !DIDerivedType(tag: DW_TAG_pointer_type, scope: !0, baseType: null, size: 64, align: 64)
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!8 = !{!9}
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!9 = !DILocalVariable(name: "a", arg: 1, scope: !4, file: !1, line: 78, type: !7)
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!10 = !DILocation(line: 78, column: 28, scope: !4)
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