Allow target to specify prefix for labels
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 &.
llvm-svn: 223323
diff --git a/llvm/lib/CodeGen/MachineBasicBlock.cpp b/llvm/lib/CodeGen/MachineBasicBlock.cpp
index 3058b1a..36ae30940 100644
--- a/llvm/lib/CodeGen/MachineBasicBlock.cpp
+++ b/llvm/lib/CodeGen/MachineBasicBlock.cpp
@@ -54,9 +54,7 @@
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()));