[PATCH] D82494: [AArch64][SVE] Only support sizeless bfloat types if supported by subtarget
Cullen Rhodes via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Fri Jun 26 04:50:55 PDT 2020
c-rhodes updated this revision to Diff 273663.
c-rhodes retitled this revision from "[AArch64][SVE] Only support nxv8bf16 if supported by subtarget" to "[AArch64][SVE] Only support sizeless bfloat types if supported by subtarget".
c-rhodes added a comment.
Changes:
- Add `nxv2bf16` and `nxv4bf16`.
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D82494/new/
https://reviews.llvm.org/D82494
Files:
llvm/lib/Target/AArch64/AArch64ISelLowering.cpp
Index: llvm/lib/Target/AArch64/AArch64ISelLowering.cpp
===================================================================
--- llvm/lib/Target/AArch64/AArch64ISelLowering.cpp
+++ llvm/lib/Target/AArch64/AArch64ISelLowering.cpp
@@ -177,13 +177,16 @@
addRegisterClass(MVT::nxv2f16, &AArch64::ZPRRegClass);
addRegisterClass(MVT::nxv4f16, &AArch64::ZPRRegClass);
addRegisterClass(MVT::nxv8f16, &AArch64::ZPRRegClass);
- addRegisterClass(MVT::nxv2bf16, &AArch64::ZPRRegClass);
- addRegisterClass(MVT::nxv4bf16, &AArch64::ZPRRegClass);
- addRegisterClass(MVT::nxv8bf16, &AArch64::ZPRRegClass);
addRegisterClass(MVT::nxv2f32, &AArch64::ZPRRegClass);
addRegisterClass(MVT::nxv4f32, &AArch64::ZPRRegClass);
addRegisterClass(MVT::nxv2f64, &AArch64::ZPRRegClass);
+ if (Subtarget->hasBF16()) {
+ addRegisterClass(MVT::nxv2bf16, &AArch64::ZPRRegClass);
+ addRegisterClass(MVT::nxv4bf16, &AArch64::ZPRRegClass);
+ addRegisterClass(MVT::nxv8bf16, &AArch64::ZPRRegClass);
+ }
+
if (useSVEForFixedLengthVectors()) {
for (MVT VT : MVT::integer_fixedlen_vector_valuetypes())
if (useSVEForFixedLengthVectorVT(VT))
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