[AArch64] Falkor supports Rounding Double Multiply Add/Subtract instructions.
Falkor only partially implements the ARMv8.1a extensions, so this patch
refactors the support for the SQRDML[A|S]H instruction into a separate
feature.
Differential Revision: https://reviews.llvm.org/D28681
llvm-svn: 292142
diff --git a/llvm/lib/Target/AArch64/AArch64Subtarget.h b/llvm/lib/Target/AArch64/AArch64Subtarget.h
index 73f63b8..b12e12d 100644
--- a/llvm/lib/Target/AArch64/AArch64Subtarget.h
+++ b/llvm/lib/Target/AArch64/AArch64Subtarget.h
@@ -61,6 +61,7 @@
bool HasCRC = false;
bool HasLSE = false;
bool HasRAS = false;
+ bool HasRDM = false;
bool HasPerfMon = false;
bool HasFullFP16 = false;
bool HasSPE = false;
@@ -183,6 +184,7 @@
bool hasCRC() const { return HasCRC; }
bool hasLSE() const { return HasLSE; }
bool hasRAS() const { return HasRAS; }
+ bool hasRDM() const { return HasRDM; }
bool balanceFPOps() const { return BalanceFPOps; }
bool predictableSelectIsExpensive() const {
return PredictableSelectIsExpensive;