Tweak some atomics functions in preparation for larger changes; NFC.
- Rename getATOMIC to getSYNC, as llvm will soon be able to emit both
'__sync' libcalls and '__atomic' libcalls, and this function is for
the '__sync' ones.
- getInsertFencesForAtomic() has been replaced with
shouldInsertFencesForAtomic(Instruction), so that the decision can be
made per-instruction. This functionality will be used soon.
- emitLeadingFence/emitTrailingFence are no longer called if
shouldInsertFencesForAtomic returns false, and thus don't need to
check the condition themselves.
llvm-svn: 263665
diff --git a/llvm/lib/CodeGen/TargetLoweringBase.cpp b/llvm/lib/CodeGen/TargetLoweringBase.cpp
index ca1ce05..d714ad1 100644
--- a/llvm/lib/CodeGen/TargetLoweringBase.cpp
+++ b/llvm/lib/CodeGen/TargetLoweringBase.cpp
@@ -667,7 +667,7 @@
return UNKNOWN_LIBCALL;
}
-RTLIB::Libcall RTLIB::getATOMIC(unsigned Opc, MVT VT) {
+RTLIB::Libcall RTLIB::getSYNC(unsigned Opc, MVT VT) {
#define OP_TO_LIBCALL(Name, Enum) \
case Name: \
switch (VT.SimpleTy) { \
@@ -774,7 +774,6 @@
PrefLoopAlignment = 0;
GatherAllAliasesMaxDepth = 6;
MinStackArgumentAlignment = 1;
- InsertFencesForAtomic = false;
MinimumJumpTableEntries = 4;
InitLibcallNames(LibcallRoutineNames, TM.getTargetTriple());