diff options
Diffstat (limited to 'llvm/test/Transforms/PhaseOrdering/X86/memcmp-mergeexpand.ll')
| -rw-r--r-- | llvm/test/Transforms/PhaseOrdering/X86/memcmp-mergeexpand.ll | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/llvm/test/Transforms/PhaseOrdering/X86/memcmp-mergeexpand.ll b/llvm/test/Transforms/PhaseOrdering/X86/memcmp-mergeexpand.ll new file mode 100644 index 00000000000..68005ab99d7 --- /dev/null +++ b/llvm/test/Transforms/PhaseOrdering/X86/memcmp-mergeexpand.ll @@ -0,0 +1,76 @@ +; NOTE: Assertions have been autogenerated by utils/update_test_checks.py +; RUN: opt -S -mergeicmps -expandmemcmp -mtriple=i386-unknown-linux < %s | FileCheck %s --check-prefix=X86 +; RUN: opt -S -mergeicmps -expandmemcmp -mtriple=x86_64-unknown-linux < %s | FileCheck %s --check-prefix=X64 + +; This tests interaction between MergeICmp and ExpandMemCmp. + +%"struct.std::pair" = type { i32, i32 } + +define zeroext i1 @opeq1( +; X86-LABEL: @opeq1( +; X86-NEXT: "entry+land.rhs.i": +; X86-NEXT: [[TMP0:%.*]] = getelementptr inbounds %"struct.std::pair", %"struct.std::pair"* [[A:%.*]], i64 0, i32 0 +; X86-NEXT: [[TMP1:%.*]] = getelementptr inbounds %"struct.std::pair", %"struct.std::pair"* [[B:%.*]], i64 0, i32 0 +; X86-NEXT: [[CSTR:%.*]] = bitcast i32* [[TMP0]] to i8* +; X86-NEXT: [[CSTR1:%.*]] = bitcast i32* [[TMP1]] to i8* +; X86-NEXT: [[TMP2:%.*]] = bitcast i8* [[CSTR]] to i32* +; X86-NEXT: [[TMP3:%.*]] = bitcast i8* [[CSTR1]] to i32* +; X86-NEXT: [[TMP4:%.*]] = load i32, i32* [[TMP2]] +; X86-NEXT: [[TMP5:%.*]] = load i32, i32* [[TMP3]] +; X86-NEXT: [[TMP6:%.*]] = xor i32 [[TMP4]], [[TMP5]] +; X86-NEXT: [[TMP7:%.*]] = getelementptr i8, i8* [[CSTR]], i8 4 +; X86-NEXT: [[TMP8:%.*]] = bitcast i8* [[TMP7]] to i32* +; X86-NEXT: [[TMP9:%.*]] = getelementptr i8, i8* [[CSTR1]], i8 4 +; X86-NEXT: [[TMP10:%.*]] = bitcast i8* [[TMP9]] to i32* +; X86-NEXT: [[TMP11:%.*]] = load i32, i32* [[TMP8]] +; X86-NEXT: [[TMP12:%.*]] = load i32, i32* [[TMP10]] +; X86-NEXT: [[TMP13:%.*]] = xor i32 [[TMP11]], [[TMP12]] +; X86-NEXT: [[TMP14:%.*]] = or i32 [[TMP6]], [[TMP13]] +; X86-NEXT: [[TMP15:%.*]] = icmp ne i32 [[TMP14]], 0 +; X86-NEXT: [[TMP16:%.*]] = zext i1 [[TMP15]] to i32 +; X86-NEXT: [[TMP17:%.*]] = icmp eq i32 [[TMP16]], 0 +; X86-NEXT: br label [[OPEQ1_EXIT:%.*]] +; X86: opeq1.exit: +; X86-NEXT: ret i1 [[TMP17]] +; +; X64-LABEL: @opeq1( +; X64-NEXT: "entry+land.rhs.i": +; X64-NEXT: [[TMP0:%.*]] = getelementptr inbounds %"struct.std::pair", %"struct.std::pair"* [[A:%.*]], i64 0, i32 0 +; X64-NEXT: [[TMP1:%.*]] = getelementptr inbounds %"struct.std::pair", %"struct.std::pair"* [[B:%.*]], i64 0, i32 0 +; X64-NEXT: [[CSTR:%.*]] = bitcast i32* [[TMP0]] to i8* +; X64-NEXT: [[CSTR1:%.*]] = bitcast i32* [[TMP1]] to i8* +; X64-NEXT: [[TMP2:%.*]] = bitcast i8* [[CSTR]] to i64* +; X64-NEXT: [[TMP3:%.*]] = bitcast i8* [[CSTR1]] to i64* +; X64-NEXT: [[TMP4:%.*]] = load i64, i64* [[TMP2]] +; X64-NEXT: [[TMP5:%.*]] = load i64, i64* [[TMP3]] +; X64-NEXT: [[TMP6:%.*]] = icmp ne i64 [[TMP4]], [[TMP5]] +; X64-NEXT: [[TMP7:%.*]] = zext i1 [[TMP6]] to i32 +; X64-NEXT: [[TMP8:%.*]] = icmp eq i32 [[TMP7]], 0 +; X64-NEXT: br label [[OPEQ1_EXIT:%.*]] +; X64: opeq1.exit: +; X64-NEXT: ret i1 [[TMP8]] +; + %"struct.std::pair"* nocapture readonly dereferenceable(8) %a, + %"struct.std::pair"* nocapture readonly dereferenceable(8) %b) local_unnamed_addr #0 { +entry: + %first.i = getelementptr inbounds %"struct.std::pair", %"struct.std::pair"* %a, i64 0, i32 0 + %0 = load i32, i32* %first.i, align 4 + %first1.i = getelementptr inbounds %"struct.std::pair", %"struct.std::pair"* %b, i64 0, i32 0 + %1 = load i32, i32* %first1.i, align 4 + %cmp.i = icmp eq i32 %0, %1 + br i1 %cmp.i, label %land.rhs.i, label %opeq1.exit + +land.rhs.i: + %second.i = getelementptr inbounds %"struct.std::pair", %"struct.std::pair"* %a, i64 0, i32 1 + %2 = load i32, i32* %second.i, align 4 + %second2.i = getelementptr inbounds %"struct.std::pair", %"struct.std::pair"* %b, i64 0, i32 1 + %3 = load i32, i32* %second2.i, align 4 + %cmp3.i = icmp eq i32 %2, %3 + br label %opeq1.exit + +opeq1.exit: + %4 = phi i1 [ false, %entry ], [ %cmp3.i, %land.rhs.i ] + ret i1 %4 +} + + |
