14 Commits

Author SHA1 Message Date
Matt Arsenault
7dd27a75a2 InstSimplify: Fold fdiv nnan ninf x, 0 -> poison
https://alive2.llvm.org/ce/z/JxX5in
2022-11-07 08:43:22 -08:00
Matt Arsenault
1ce5f93d03 InstSimplify: Add new baseline tests for fdiv 2022-11-07 08:43:22 -08:00
Nikita Popov
4bb7b6fae3 [IR] Remove support for float binop constant expressions
As part of https://discourse.llvm.org/t/rfc-remove-most-constant-expressions/63179,
this removes support for the floating-point binop constant expressions
fadd, fsub, fmul, fdiv and frem.

As part of this change, the C APIs LLVMConstFAdd, LLVMConstFSub,
LLVMConstFMul, LLVMConstFDiv and LLVMConstFRem are removed.
The LLVMBuild APIs should be used instead.

Differential Revision: https://reviews.llvm.org/D129478
2022-07-12 09:40:49 +02:00
Dávid Bolvanský
11b41910dd [NFCI] Regenerate instsimplify test checks 2022-04-03 20:55:15 +02:00
Bjorn Pettersson
b280ee1dd7 [test] Use -passes=instsimplify instead of -instsimplify in a number of tests. NFC
Another step moving away from the deprecated syntax of specifying
pass pipeline in opt.

Differential Revision: https://reviews.llvm.org/D119080
2022-02-07 14:26:58 +01:00
Eric Christopher
cee313d288 Revert "Temporarily Revert "Add basic loop fusion pass.""
The reversion apparently deleted the test/Transforms directory.

Will be re-reverting again.

llvm-svn: 358552
2019-04-17 04:52:47 +00:00
Eric Christopher
a863435128 Temporarily Revert "Add basic loop fusion pass."
As it's causing some bot failures (and per request from kbarton).

This reverts commit r358543/ab70da07286e618016e78247e4a24fcb84077fda.

llvm-svn: 358546
2019-04-17 02:12:23 +00:00
Sanjay Patel
bf28a8fc01 [InstSimplify] add tests for FP with undef operand; NFC
Are any of these correct?

llvm-svn: 326241
2018-02-27 20:17:18 +00:00
Sanjay Patel
83f056604c [InstSimplify] (X * Y) / Y --> X for relaxed floating-point ops
This is the FP counterpart that was mentioned in PR35709:
https://bugs.llvm.org/show_bug.cgi?id=35709

Differential Revision: https://reviews.llvm.org/D42385

llvm-svn: 323716
2018-01-30 00:18:37 +00:00
Sanjay Patel
8b5ad3f00e [InstSimplify] add constant folding for fdiv/frem
Also, add a helper function so we don't have to repeat this code for each binop.

llvm-svn: 299309
2017-04-01 19:05:11 +00:00
Sanjay Patel
ee0f5cc41f [InstSimplify] add tests for missed constant folding; NFC
llvm-svn: 299308
2017-04-01 18:44:03 +00:00
Sanjay Patel
69632447b1 [InstSimplify] regenerate checks using a script
I didn't notice any significant changes in the actual checks here;
all of these tests already used FileCheck, so a script can batch
update them in one shot.

This commit is just to show the value of automating this process: 
We have uniform formatting as opposed to a mish-mash of check
structure that changes based on individual prefs and the current
fashion. This makes it simpler to update when we find a bug or
make an enhancement.

llvm-svn: 264457
2016-03-25 20:12:25 +00:00
Stephen Lin
c1c7a1309c Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change.
This update was done with the following bash script:

  find test/Transforms -name "*.ll" | \
  while read NAME; do
    echo "$NAME"
    if ! grep -q "^; *RUN: *llc" $NAME; then
      TEMP=`mktemp -t temp`
      cp $NAME $TEMP
      sed -n "s/^define [^@]*@\([A-Za-z0-9_]*\)(.*$/\1/p" < $NAME | \
      while read FUNC; do
        sed -i '' "s/;\(.*\)\([A-Za-z0-9_]*\):\( *\)@$FUNC\([( ]*\)\$/;\1\2-LABEL:\3@$FUNC(/g" $TEMP
      done
      mv $TEMP $NAME
    fi
  done

llvm-svn: 186268
2013-07-14 01:42:54 +00:00
Frits van Bommel
c2549661af Move InstCombine's knowledge of fdiv to SimplifyInstruction().
llvm-svn: 124534
2011-01-29 15:26:31 +00:00