[llvm] d1a69e4 - Move gfni for bitreverse check out of SSSE3. (#88938)
via llvm-commits
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Wed Apr 17 01:46:14 PDT 2024
Author: shamithoke
Date: 2024-04-17T09:46:10+01:00
New Revision: d1a69e4a6ee0b04778da7728123c47eef2290564
URL: https://github.com/llvm/llvm-project/commit/d1a69e4a6ee0b04778da7728123c47eef2290564
DIFF: https://github.com/llvm/llvm-project/commit/d1a69e4a6ee0b04778da7728123c47eef2290564.diff
LOG: Move gfni for bitreverse check out of SSSE3. (#88938)
For lowering bitreverse using GFNI, the check is put under SSSE3. This can be pulled out of SSSE3.
Co-authored-by: shami <shami_thoke at yahoo.com>
Added:
Modified:
llvm/lib/Target/X86/X86ISelLowering.cpp
Removed:
################################################################################
diff --git a/llvm/lib/Target/X86/X86ISelLowering.cpp b/llvm/lib/Target/X86/X86ISelLowering.cpp
index f16a751a166d69..27107f554fccf1 100644
--- a/llvm/lib/Target/X86/X86ISelLowering.cpp
+++ b/llvm/lib/Target/X86/X86ISelLowering.cpp
@@ -1276,6 +1276,13 @@ X86TargetLowering::X86TargetLowering(const X86TargetMachine &TM,
setOperationAction(ISD::STRICT_FDIV, MVT::v2f64, Legal);
}
+ if (Subtarget.hasGFNI()) {
+ setOperationAction(ISD::BITREVERSE, MVT::i8, Custom);
+ setOperationAction(ISD::BITREVERSE, MVT::i16, Custom);
+ setOperationAction(ISD::BITREVERSE, MVT::i32, Custom);
+ setOperationAction(ISD::BITREVERSE, MVT::i64, Custom);
+ }
+
if (!Subtarget.useSoftFloat() && Subtarget.hasSSSE3()) {
setOperationAction(ISD::ABS, MVT::v16i8, Legal);
setOperationAction(ISD::ABS, MVT::v8i16, Legal);
@@ -1286,13 +1293,6 @@ X86TargetLowering::X86TargetLowering(const X86TargetMachine &TM,
setOperationAction(ISD::CTLZ, VT, Custom);
}
- if (Subtarget.hasGFNI()) {
- setOperationAction(ISD::BITREVERSE, MVT::i8, Custom);
- setOperationAction(ISD::BITREVERSE, MVT::i16, Custom);
- setOperationAction(ISD::BITREVERSE, MVT::i32, Custom);
- setOperationAction(ISD::BITREVERSE, MVT::i64, Custom);
- }
-
// These might be better off as horizontal vector ops.
setOperationAction(ISD::ADD, MVT::i16, Custom);
setOperationAction(ISD::ADD, MVT::i32, Custom);
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