[PATCH] D98932: [RISCV] Don't call setHasMultipleConditionRegisters(), so icmp is sunk
Philipp Tomsich via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Fri Mar 19 02:36:59 PDT 2021
philipp.tomsich updated this revision to Diff 331807.
philipp.tomsich added a comment.
Removed comment left-over after removing the call to setHasMultipleConditionRegisters().
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D98932/new/
https://reviews.llvm.org/D98932
Files:
llvm/lib/Target/RISCV/RISCVISelLowering.cpp
llvm/lib/Target/RISCV/RISCVISelLowering.h
Index: llvm/lib/Target/RISCV/RISCVISelLowering.h
===================================================================
--- llvm/lib/Target/RISCV/RISCVISelLowering.h
+++ llvm/lib/Target/RISCV/RISCVISelLowering.h
@@ -506,6 +506,10 @@
MachineFunction &MF) const;
bool useRVVForFixedLengthVectorVT(MVT VT) const;
+
+ bool shouldNormalizeToSelectSequence(LLVMContext &, EVT) const override {
+ return false;
+ };
};
namespace RISCV {
Index: llvm/lib/Target/RISCV/RISCVISelLowering.cpp
===================================================================
--- llvm/lib/Target/RISCV/RISCVISelLowering.cpp
+++ llvm/lib/Target/RISCV/RISCVISelLowering.cpp
@@ -688,9 +688,6 @@
// Jumps are expensive, compared to logic
setJumpIsExpensive();
- // We can use any register for comparisons
- setHasMultipleConditionRegisters();
-
if (Subtarget.hasStdExtZbp()) {
setTargetDAGCombine(ISD::OR);
}
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