55 lines
1.8 KiB
LLVM
55 lines
1.8 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc -mtriple=x86_64-apple-macosx10.9.0 -mcpu=core2 -mattr=+64bit,+sse2 < %s | FileCheck %s
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; DAGCombine may choose to rewrite 2 loads feeding a select as a select of
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; addresses feeding a load. This test ensures that when it does that it creates
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; a load with alignment equivalent to the most restrictive source load.
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declare void @sink(<2 x double>)
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define void @test1(i1 %cmp) align 2 {
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; CHECK-LABEL: test1:
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; CHECK: ## %bb.0:
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; CHECK-NEXT: subq $40, %rsp
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; CHECK-NEXT: .cfi_def_cfa_offset 48
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; CHECK-NEXT: testb $1, %dil
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; CHECK-NEXT: leaq {{[0-9]+}}(%rsp), %rax
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; CHECK-NEXT: movq %rsp, %rcx
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; CHECK-NEXT: cmovneq %rax, %rcx
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; CHECK-NEXT: movups (%rcx), %xmm0
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; CHECK-NEXT: callq _sink
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; CHECK-NEXT: addq $40, %rsp
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; CHECK-NEXT: retq
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%1 = alloca <2 x double>, align 16
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%2 = alloca <2 x double>, align 8
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%val = load <2 x double>, <2 x double>* %1, align 16
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%val2 = load <2 x double>, <2 x double>* %2, align 8
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%val3 = select i1 %cmp, <2 x double> %val, <2 x double> %val2
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call void @sink(<2 x double> %val3)
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ret void
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}
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define void @test2(i1 %cmp) align 2 {
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; CHECK-LABEL: test2:
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; CHECK: ## %bb.0:
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; CHECK-NEXT: subq $40, %rsp
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; CHECK-NEXT: .cfi_def_cfa_offset 48
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; CHECK-NEXT: testb $1, %dil
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; CHECK-NEXT: leaq {{[0-9]+}}(%rsp), %rax
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; CHECK-NEXT: movq %rsp, %rcx
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; CHECK-NEXT: cmovneq %rax, %rcx
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; CHECK-NEXT: movaps (%rcx), %xmm0
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; CHECK-NEXT: callq _sink
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; CHECK-NEXT: addq $40, %rsp
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; CHECK-NEXT: retq
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%1 = alloca <2 x double>, align 16
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%2 = alloca <2 x double>, align 8
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%val = load <2 x double>, <2 x double>* %1, align 16
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%val2 = load <2 x double>, <2 x double>* %2, align 16
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%val3 = select i1 %cmp, <2 x double> %val, <2 x double> %val2
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call void @sink(<2 x double> %val3)
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ret void
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}
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