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Allow target to specify prefix for labels

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Use the MCAsmInfo instead of the DataLayout, and allow
specifying a custom prefix for labels specifically. HSAIL
requires that labels begin with @, but global symbols with &.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@223323 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Matt Arsenault
2014-12-04 00:06:57 +00:00
parent 5862c2af3e
commit 459e595697
10 changed files with 18 additions and 4 deletions
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lib/CodeGen/MachineBasicBlock.cpp
+1 -3
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@@ -54,9 +54,7 @@ MCSymbol *MachineBasicBlock::getSymbol() const {
if (!CachedMCSymbol) {
const MachineFunction *MF = getParent();
MCContext &Ctx = MF->getContext();
const TargetMachine &TM = MF->getTarget();
const char *Prefix =
TM.getSubtargetImpl()->getDataLayout()->getPrivateGlobalPrefix();
const char *Prefix = Ctx.getAsmInfo()->getPrivateLabelPrefix();
CachedMCSymbol = Ctx.GetOrCreateSymbol(Twine(Prefix) + "BB" +
Twine(MF->getFunctionNumber()) +
"_" + Twine(getNumber()));