[all-commits] [llvm/llvm-project] 26e1eb: [GlobalISel] Change ConstantFoldVectorBinop to ret...
Jay Foad via All-commits
all-commits at lists.llvm.org
Fri May 13 01:35:47 PDT 2022
Branch: refs/heads/main
Home: https://github.com/llvm/llvm-project
Commit: 26e1ebd3ea2cc37a533f16f008d4b05e50a6a5dc
https://github.com/llvm/llvm-project/commit/26e1ebd3ea2cc37a533f16f008d4b05e50a6a5dc
Author: Jay Foad <jay.foad at amd.com>
Date: 2022-05-13 (Fri, 13 May 2022)
Changed paths:
M llvm/include/llvm/CodeGen/GlobalISel/MachineIRBuilder.h
M llvm/include/llvm/CodeGen/GlobalISel/Utils.h
M llvm/lib/CodeGen/GlobalISel/CSEMIRBuilder.cpp
M llvm/lib/CodeGen/GlobalISel/MachineIRBuilder.cpp
M llvm/lib/CodeGen/GlobalISel/Utils.cpp
M llvm/test/CodeGen/AMDGPU/GlobalISel/irtranslator-constant-fold-vector-op.ll
M llvm/test/CodeGen/AMDGPU/GlobalISel/irtranslator-getelementptr.ll
Log Message:
-----------
[GlobalISel] Change ConstantFoldVectorBinop to return vector of APInt
Previously it built MIR for the results and returned a Register.
This avoids building constants for earlier elements of the vector if
later elements will fail to fold, and allows CSEMIRBuilder::buildInstr
to avoid unconditionally building a copy from the result.
Use a new helper function MachineIRBuilder::buildBuildVectorConstant
to build a G_BUILD_VECTOR of G_CONSTANTs.
Differential Revision: https://reviews.llvm.org/D117758
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