Add a new pass FunctionTargetTransformInfo. This pass serves as a
shim between the TargetTransformInfo immutable pass and the Subtarget
via the TargetMachine and Function. Migrate a single call from
BasicTargetTransformInfo as an example and provide shims where TargetMachine
begins taking a Function to determine the subtarget.
No functional change.
llvm-svn: 218004
diff --git a/llvm/lib/CodeGen/BasicTargetTransformInfo.cpp b/llvm/lib/CodeGen/BasicTargetTransformInfo.cpp
index e79f458..9a3e296 100644
--- a/llvm/lib/CodeGen/BasicTargetTransformInfo.cpp
+++ b/llvm/lib/CodeGen/BasicTargetTransformInfo.cpp
@@ -92,7 +92,7 @@
unsigned getJumpBufSize() const override;
bool shouldBuildLookupTables() const override;
bool haveFastSqrt(Type *Ty) const override;
- void getUnrollingPreferences(Loop *L,
+ void getUnrollingPreferences(const Function *F, Loop *L,
UnrollingPreferences &UP) const override;
/// @}
@@ -199,7 +199,7 @@
return TLI->isTypeLegal(VT) && TLI->isOperationLegalOrCustom(ISD::FSQRT, VT);
}
-void BasicTTI::getUnrollingPreferences(Loop *L,
+void BasicTTI::getUnrollingPreferences(const Function *F, Loop *L,
UnrollingPreferences &UP) const {
// This unrolling functionality is target independent, but to provide some
// motivation for its intended use, for x86:
@@ -225,7 +225,7 @@
// until someone finds a case where it matters in practice.
unsigned MaxOps;
- const TargetSubtargetInfo *ST = &TM->getSubtarget<TargetSubtargetInfo>();
+ const TargetSubtargetInfo *ST = &TM->getSubtarget<TargetSubtargetInfo>(F);
if (PartialUnrollingThreshold.getNumOccurrences() > 0)
MaxOps = PartialUnrollingThreshold;
else if (ST->getSchedModel().LoopMicroOpBufferSize > 0)