[all-commits] [llvm/llvm-project] 7b6476: [SVE] Fix TypeSize related warnings with IR trunca...
david-arm via All-commits
all-commits at lists.llvm.org
Tue Aug 25 01:18:43 PDT 2020
Branch: refs/heads/master
Home: https://github.com/llvm/llvm-project
Commit: 7b64765cd19a60d6d56106769d06cdff5b660479
https://github.com/llvm/llvm-project/commit/7b64765cd19a60d6d56106769d06cdff5b660479
Author: David Sherwood <david.sherwood at arm.com>
Date: 2020-08-25 (Tue, 25 Aug 2020)
Changed paths:
M llvm/include/llvm/Analysis/TargetTransformInfoImpl.h
M llvm/lib/Transforms/InstCombine/InstCombineSimplifyDemanded.cpp
A llvm/test/Analysis/CostModel/AArch64/sve-trunc.ll
A llvm/test/Transforms/InstCombine/AArch64/sve-trunc.ll
Log Message:
-----------
[SVE] Fix TypeSize related warnings with IR truncates of scalable vectors
In getCastInstrCost when the instruction is a truncate we were relying
upon the implicit TypeSize -> uint64_t cast when asking if a given type
has the same size as a legal integer. I've changed the code to only
ask the question if the type is fixed length.
I have also changed InstCombinerImpl::SimplifyDemandedUseBits to bail
out for now if the type is a scalable vector.
I've added the following new tests:
Analysis/CostModel/AArch64/sve-trunc.ll
Transforms/InstCombine/AArch64/sve-trunc.ll
for both of these fixes.
Differential revision: https://reviews.llvm.org/D86432
More information about the All-commits
mailing list