[PATCH] D73753: [ConstantFold][SVE] Fix constant folding for scalable vector compare instruction.
Huihui Zhang via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Thu Jan 30 16:50:46 PST 2020
huihuiz created this revision.
huihuiz added reviewers: sdesmalen, efriedma, apazos, huntergr, willlovett.
huihuiz added a project: LLVM.
Herald added subscribers: psnobl, rkruppe, hiraditya, tschuett.
huihuiz added a comment.
current upstream crash at : llvm/lib/IR/Value.cpp:404: void llvm::Value::doRAUW(llvm::Value *, llvm::Value::ReplaceMetadataUses): Assertion `New->getType() == getType() && "replaceAllUses of value with new value of different type!"' failed.
take test.ll
define <vscale x 4 x i1> @icmp_undef() {
%r = icmp eq <vscale x 4 x i32> undef, undef
ret <vscale x 4 x i1> %r
}
run : ./bin/opt -S -constprop t.ll -o -
Do not iterate on scalable vector. Also do not return constant scalable vector
from ConstantInt::get().
Fix result type by using getElementCount() instead of getNumElements().
Repository:
rG LLVM Github Monorepo
https://reviews.llvm.org/D73753
Files:
llvm/lib/IR/ConstantFold.cpp
llvm/lib/IR/Constants.cpp
llvm/test/Analysis/ConstantFolding/vscale.ll
-------------- next part --------------
A non-text attachment was scrubbed...
Name: D73753.241609.patch
Type: text/x-patch
Size: 5275 bytes
Desc: not available
URL: <http://lists.llvm.org/pipermail/llvm-commits/attachments/20200131/f118c965/attachment.bin>
More information about the llvm-commits
mailing list