maxjhandsome
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Releases Wiki Activity
llvm-project/llvm/test/CodeGen/X86/sret-implicit.ll

13 lines
402 B
LLVM
Raw Normal View History

Revert r237175: [X86] Always return the sret parameter in eax/rax ... This commit broke an x86 test and the bots have been broken for well over an hour now so I'm just reverting. llvm-svn: 237210
2015-05-13 07:34:27 +08:00
; RUN: llc -mtriple=x86_64-apple-darwin8 < %s | FileCheck %s
; RUN: llc -mtriple=x86_64-pc-linux < %s | FileCheck %s
; RUN: llc -mtriple=x86_64-apple-darwin8 -terminal-rule < %s | FileCheck %s
; RUN: llc -mtriple=x86_64-pc-linux -terminal-rule < %s | FileCheck %s
; CHECK-LABEL: return32
; CHECK-DAG: movq $0, (%rdi)
; CHECK-DAG: movq %rdi, %rax
; CHECK: retq
define i256 @return32() {
X86 ABI fix for return values > 24 bytes. The return value's address must be returned in %rax. i.e. the callee needs to copy the sret argument (%rdi) into the return value (%rax). This probably won't manifest as a bug when the caller is LLVM-compiled code. But it is an ABI guarantee and tools expect it. llvm-svn: 228321
2015-02-06 02:09:05 +08:00
ret i256 0
}