47 lines
1.1 KiB
LLVM
47 lines
1.1 KiB
LLVM
; RUN: llc < %s -stack-symbol-ordering=0 -mcpu=generic -stackrealign -mattr=+avx -mtriple=x86_64-apple-darwin10 | FileCheck %s
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; rdar://11496434
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declare void @t1_helper(i32*)
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declare void @t3_helper(i32*, i32*)
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; Test when forcing stack alignment
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define i32 @t8() nounwind uwtable {
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entry:
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%a = alloca i32, align 4
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call void @t1_helper(i32* %a) nounwind
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%0 = load i32, i32* %a, align 4
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%add = add nsw i32 %0, 13
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ret i32 %add
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; CHECK: _t8
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; CHECK: movq %rsp, %rbp
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; CHECK: andq $-32, %rsp
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; CHECK-NEXT: subq $32, %rsp
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; CHECK: movq %rbp, %rsp
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; CHECK: popq %rbp
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}
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; VLAs
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define i32 @t9(i64 %sz) nounwind uwtable {
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entry:
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%a = alloca i32, align 4
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%vla = alloca i32, i64 %sz, align 16
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call void @t3_helper(i32* %a, i32* %vla) nounwind
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%0 = load i32, i32* %a, align 4
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%add = add nsw i32 %0, 13
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ret i32 %add
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; CHECK: _t9
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; CHECK: pushq %rbp
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; CHECK: movq %rsp, %rbp
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; CHECK: pushq %rbx
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; CHECK: andq $-32, %rsp
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; CHECK: subq $32, %rsp
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; CHECK: movq %rsp, %rbx
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; CHECK: leaq -8(%rbp), %rsp
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; CHECK: popq %rbx
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; CHECK: popq %rbp
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}
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!llvm.module.flags = !{!0}
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!0 = !{i32 2, !"override-stack-alignment", i32 32}
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