[arm] Fix Unnecessary reloads from GOT.
Summary:
This fixes PR35221.
Use pseudo-instructions to let MachineCSE hoist global address computation.
Subscribers: aemerson, javed.absar, kristof.beyls, llvm-commits, hiraditya
Differential Revision: https://reviews.llvm.org/D39871
llvm-svn: 318081
diff --git a/llvm/lib/Target/ARM/ARMSubtarget.cpp b/llvm/lib/Target/ARM/ARMSubtarget.cpp
index a8546ec..7e107e4 100644
--- a/llvm/lib/Target/ARM/ARMSubtarget.cpp
+++ b/llvm/lib/Target/ARM/ARMSubtarget.cpp
@@ -344,11 +344,9 @@
return false;
}
-ARMCP::ARMCPModifier ARMSubtarget::getCPModifier(const GlobalValue *GV) const {
- if (isTargetELF() && TM.isPositionIndependent() &&
- !TM.shouldAssumeDSOLocal(*GV->getParent(), GV))
- return ARMCP::GOT_PREL;
- return ARMCP::no_modifier;
+bool ARMSubtarget::isGVInGOT(const GlobalValue *GV) const {
+ return isTargetELF() && TM.isPositionIndependent() &&
+ !TM.shouldAssumeDSOLocal(*GV->getParent(), GV);
}
unsigned ARMSubtarget::getMispredictionPenalty() const {