68 lines
2.2 KiB
LLVM
68 lines
2.2 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc -mtriple=x86_64-pc-linux -stackrealign -stack-alignment=32 < %s | FileCheck %s
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; RUN: llc -mtriple=x86_64-pc-linux-gnux32 -stackrealign -stack-alignment=32 < %s | FileCheck -check-prefix=X32ABI %s
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; This should run with NaCl as well ( -mtriple=x86_64-pc-nacl ) but currently doesn't due to PR22655
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; Make sure the correct register gets set up as the base pointer
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; This should be rbx for x64 and 64-bit NaCl and ebx for x32
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; NACL-LABEL: base
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; NACL: subq $32, %rsp
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; NACL: movq %rsp, %rbx
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declare i32 @helper() nounwind
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define void @base() #0 {
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; CHECK-LABEL: base:
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; CHECK: # %bb.0: # %entry
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; CHECK-NEXT: pushq %rbp
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; CHECK-NEXT: movq %rsp, %rbp
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; CHECK-NEXT: pushq %rbx
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; CHECK-NEXT: andq $-32, %rsp
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; CHECK-NEXT: subq $32, %rsp
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; CHECK-NEXT: movq %rsp, %rbx
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; CHECK-NEXT: callq helper
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; CHECK-NEXT: movq %rsp, %rcx
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; CHECK-NEXT: movl %eax, %eax
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; CHECK-NEXT: leaq 31(,%rax,4), %rax
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; CHECK-NEXT: andq $-32, %rax
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; CHECK-NEXT: movq %rcx, %rdx
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; CHECK-NEXT: subq %rax, %rdx
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; CHECK-NEXT: movq %rdx, %rsp
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; CHECK-NEXT: negq %rax
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; CHECK-NEXT: movl $0, (%rcx,%rax)
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; CHECK-NEXT: leaq -8(%rbp), %rsp
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; CHECK-NEXT: popq %rbx
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; CHECK-NEXT: popq %rbp
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; CHECK-NEXT: retq
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;
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; X32ABI-LABEL: base:
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; X32ABI: # %bb.0: # %entry
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; X32ABI-NEXT: pushq %rbp
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; X32ABI-NEXT: movl %esp, %ebp
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; X32ABI-NEXT: pushq %rbx
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; X32ABI-NEXT: andl $-32, %esp
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; X32ABI-NEXT: subl $32, %esp
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; X32ABI-NEXT: movl %esp, %ebx
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; X32ABI-NEXT: callq helper
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; X32ABI-NEXT: # kill: def $eax killed $eax def $rax
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; X32ABI-NEXT: movl %esp, %ecx
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; X32ABI-NEXT: leal 31(,%rax,4), %eax
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; X32ABI-NEXT: andl $-32, %eax
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; X32ABI-NEXT: movl %ecx, %edx
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; X32ABI-NEXT: subl %eax, %edx
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; X32ABI-NEXT: movl %edx, %esp
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; X32ABI-NEXT: negl %eax
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; X32ABI-NEXT: movl $0, (%ecx,%eax)
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; X32ABI-NEXT: leal -8(%ebp), %esp
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; X32ABI-NEXT: popq %rbx
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; X32ABI-NEXT: popq %rbp
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; X32ABI-NEXT: retq
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entry:
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%k = call i32 @helper()
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%a = alloca i32, i32 %k, align 4
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store i32 0, i32* %a, align 4
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ret void
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}
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attributes #0 = { nounwind "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf"}
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