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Add a regression test for x86-64 red zone usage. 

llvm-svn: 63075
This commit is contained in:
Dan Gohman 2009-01-27 00:40:27 +00:00
parent 1cd2a2c9f8
commit 8738997c11
1 changed files with 13 additions and 0 deletions
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13
llvm/test/CodeGen/X86/red-zone.ll Normal file
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; RUN: llvm-as < %s | llc -march=x86-64 > %t
; RUN: not grep subq %t
; RUN: not grep addq %t
; RUN: grep {\\-4(%%rsp)} %t | count 2
; RUN: llvm-as < %s | llc -march=x86-64 -disable-red-zone > %t
; RUN: grep subq %t | count 1
; RUN: grep addq %t | count 1
define x86_fp80 @f0(float %f) nounwind readnone {
entry:
%0 = fpext float %f to x86_fp80 ; <x86_fp80> [#uses=1]
ret x86_fp80 %0
}