Do away with addLegalFPImmediate. Add a target hook isFPImmLegal which returns true if the fp immediate can be natively codegened by target.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85281 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/Alpha/AlphaISelLowering.cpp b/lib/Target/Alpha/AlphaISelLowering.cpp
index b3f865c..b2b738d 100644
--- a/lib/Target/Alpha/AlphaISelLowering.cpp
+++ b/lib/Target/Alpha/AlphaISelLowering.cpp
@@ -157,11 +157,6 @@
setStackPointerRegisterToSaveRestore(Alpha::R30);
- addLegalFPImmediate(APFloat(+0.0)); //F31
- addLegalFPImmediate(APFloat(+0.0f)); //F31
- addLegalFPImmediate(APFloat(-0.0)); //-F31
- addLegalFPImmediate(APFloat(-0.0f)); //-F31
-
setJumpBufSize(272);
setJumpBufAlignment(16);
@@ -919,3 +914,11 @@
// The Alpha target isn't yet aware of offsets.
return false;
}
+
+bool AlphaTargetLowering::isFPImmLegal(const APFloat &Imm) const {
+ // +0.0 F31
+ // +0.0f F31
+ // -0.0 -F31
+ // -0.0f -F31
+ return Imm.isZero() || Imm.isNegZero();
+}