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