Commit Graph

15 Commits

Author SHA1 Message Date
Shawn Landden 24f4085811 [SimplifyCFG] NFC, update Switch tests as a baseline.
Also add baseline tests to show effect of later patches.

There were a couple of regressions here that were never caught,
but my patch set that this is a preparation to will fix them.

This is the third attempt to land this patch.

Differential Revision: https://reviews.llvm.org/D61150

llvm-svn: 363319
2019-06-13 19:36:38 +00:00
Shawn Landden 8b142bcc3f [SimplifyCFG] reverting preliminary Switch patches again
This reverts 363226 and 363227, both NFC intended

I swear I fixed the test case that is failing, and ran
the tests, but I will look into it again.

llvm-svn: 363229
2019-06-13 05:26:17 +00:00
Shawn Landden c54b2011bd [SimplifyCFG] NFC, update Switch tests to better examine successive patches
Also add baseline tests to show effect of later patches.

There were a couple of regressions here that were never caught,
but my patch set that this is a preparation to will fix them.

Differential Revision: https://reviews.llvm.org/D61150

llvm-svn: 363226
2019-06-13 04:51:35 +00:00
Shawn Landden c6cba2957d [SimplifyCFG] revert the last commit.
I ran ALL the test suite locally, so I will look into this...

llvm-svn: 363223
2019-06-13 02:47:47 +00:00
Shawn Landden f93b99b2b6 [SimplifyCFG] NFC, update Switch tests to HEAD so I can
see if my changes change anything

Also add baseline tests to show effect of later patches.

Differential Revision: https://reviews.llvm.org/D61150

llvm-svn: 363222
2019-06-13 02:24:24 +00:00
Shawn Landden 343578759e [SimplifyCFG] back out all SwitchInst commits
They caused the sanitizer builds to fail.

My suspicion is the change the countLeadingZeros().

llvm-svn: 361736
2019-05-26 18:15:51 +00:00
Shawn Landden 50c73a044f [SimplifyCFG] NFC, update Switch tests to HEAD so I can see if my changes change anything
Also add baseline tests to show effect of later patches.

llvm-svn: 361725
2019-05-26 13:52:41 +00:00
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
Vedant Kumar 808e157356 Mark @llvm.trap cold
A call to @llvm.trap can be expected to be cold (i.e. unlikely to be
reached in a normal program execution).

Outlining paths which unconditionally trap is an important memory
saving. As the hot/cold splitting pass (imho) should not treat all
noreturn calls as cold, explicitly mark @llvm.trap cold so that it can
be outlined.

Split out of https://reviews.llvm.org/D54244.

Differential Revision: https://reviews.llvm.org/D54329

llvm-svn: 346885
2018-11-14 19:53:41 +00:00
Matt Arsenault 90e4f719e1 Fix some misc. -enable-var-scope violations
llvm-svn: 318006
2017-11-13 01:47:52 +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
Bill Wendling a032374ea0 Use references to attribute groups on the call/invoke instructions.
Listing all of the attributes for the callee of a call/invoke instruction is way
too much and makes the IR unreadable. Use references to attributes instead.

llvm-svn: 175877
2013-02-22 09:09:42 +00:00
Dan Gohman 5ab9c0a927 Fix SpeculativelyExecuteBB to either speculate all or none of the phis
present in the bottom of the CFG triangle, as the transformation isn't
ever valuable if the branch can't be eliminated.

Also, unify some heuristics between SimplifyCFG's multiple
if-converters, for consistency.

This fixes rdar://10627242.

llvm-svn: 147630
2012-01-05 23:58:56 +00:00
Frits van Bommel 8ae07996c9 Teach SimplifyCFG that (switch (select cond, X, Y)) is better expressed as a branch.
Based on a patch by Alistair Lynn.

llvm-svn: 126647
2011-02-28 09:44:07 +00:00