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R600: Fix assert on empty function

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If a function is just an unreachable, this would hit a
"this is not a MachO target" assertion because of setting
HasSubsectionViaSymbols.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221920 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Matt Arsenault 2014-11-13 20:07:40 +00:00
parent fb113f67b9
commit 60c3acb36c
2 changed files with 20 additions and 1 deletions
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1
lib/Target/R600/MCTargetDesc/AMDGPUMCAsmInfo.cpp
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@ -14,7 +14,6 @@ using namespace llvm;
AMDGPUMCAsmInfo::AMDGPUMCAsmInfo(StringRef &TT) : MCAsmInfoELF() {
HasSingleParameterDotFile = false;
//===------------------------------------------------------------------===//
HasSubsectionsViaSymbols = true;
MaxInstLength = 16;
SeparatorString = "\n";
CommentString = ";";

20
test/CodeGen/R600/empty-function.ll Normal file
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@ -0,0 +1,20 @@
; RUN: llc -march=r600 -mcpu=SI -verify-machineinstrs < %s | FileCheck -check-prefix=SI %s
; Make sure we don't assert on empty functions
; SI-LABEL: {{^}}empty_function_ret:
; SI: .text
; SI: s_endpgm
; SI: codeLenInByte = 4
define void @empty_function_ret() #0 {
ret void
}
; SI-LABEL: {{^}}empty_function_unreachable:
; SI: .text
; SI: codeLenInByte = 0
define void @empty_function_unreachable() #0 {
unreachable
}
attributes #0 = { nounwind }