1; RUN: llc -mtriple=x86_64-pc-linux -stackrealign -stack-alignment=32 < %s | FileCheck %s 2; RUN: llc -mtriple=x86_64-pc-linux-gnux32 -stackrealign -stack-alignment=32 < %s | FileCheck -check-prefix=X32ABI %s 3; This should run with NaCl as well ( -mtriple=x86_64-pc-nacl ) but currently doesn't due to PR22655 4 5; Make sure the correct register gets set up as the base pointer 6; This should be rbx for x64 and 64-bit NaCl and ebx for x32 7; CHECK-LABEL: base 8; CHECK: subq $32, %rsp 9; CHECK: movq %rsp, %rbx 10; X32ABI-LABEL: base 11; X32ABI: subl $32, %esp 12; X32ABI: movl %esp, %ebx 13; NACL-LABEL: base 14; NACL: subq $32, %rsp 15; NACL: movq %rsp, %rbx 16 17declare i32 @helper() nounwind 18define void @base() #0 { 19entry: 20 %k = call i32 @helper() 21 %a = alloca i32, i32 %k, align 4 22 store i32 0, i32* %a, align 4 23 ret void 24} 25 26attributes #0 = { nounwind uwtable "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf"} 27