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path: root/llvm/test/Transforms/JumpThreading/select.ll
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* [opaque pointer type] Add textual IR support for explicit type parameter to ↵David Blaikie2015-02-271-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | load instruction Essentially the same as the GEP change in r230786. A similar migration script can be used to update test cases, though a few more test case improvements/changes were required this time around: (r229269-r229278) import fileinput import sys import re pat = re.compile(r"((?:=|:|^)\s*load (?:atomic )?(?:volatile )?(.*?))(| addrspace\(\d+\) *)\*($| *(?:%|@|null|undef|blockaddress|getelementptr|addrspacecast|bitcast|inttoptr|\[\[[a-zA-Z]|\{\{).*$)") for line in sys.stdin: sys.stdout.write(re.sub(pat, r"\1, \2\3*\4", line)) Reviewers: rafael, dexonsmith, grosser Differential Revision: http://reviews.llvm.org/D7649 llvm-svn: 230794
* Fixed jump threading going to infinite loop.Dinesh Dwivedi2014-06-171-1/+1
| | | | | | | | | This patch add code to remove unreachable blocks from function as they may cause jump threading to stuck in infinite loop. Differential Revision: http://reviews.llvm.org/D3991 llvm-svn: 211103
* JumpThreading: Turn a select instruction into branching if it allows to ↵Benjamin Kramer2013-08-071-0/+63
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | thread one half of the select. This is a common pattern coming out of simplifycfg generating gross code. a: ; preds = %entry %sel = select i1 %cmp1, double %add, double 0.000000e+00 br label %b b: %cond5 = phi double [ %sel, %a ], [ %sub, %entry ] %cmp6 = fcmp oeq double %cond5, 0.000000e+00 br i1 %cmp6, label %if.then, label %if.end becomes a: br i1 %cmp1, label %b, label %if.then b: %cond5 = phi double [ %sub, %entry ], [ %add, %a ] %cmp6 = fcmp oeq double %cond5, 0.000000e+00 br i1 %cmp6, label %if.then, label %if.end Skipping block b completely if possible. llvm-svn: 187880
* Update Transforms tests to use CHECK-LABEL for easier debugging. No ↵Stephen Lin2013-07-141-4/+4
| | | | | | | | | | | | | | | | | | | | | | functionality change. This update was done with the following bash script: find test/Transforms -name "*.ll" | \ while read NAME; do echo "$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
* JumpThreading: when default destination is the destination of some cases in aManman Ren2012-09-051-0/+36
| | | | | | | | | switch, make sure we include the value for the cases when calculating edge value from switch to the default destination. rdar://12241132 llvm-svn: 163270
* Teach jump threading to "look through" a select when the branch direction of ↵Frits van Bommel2010-12-151-0/+123
a terminator depends on it. When it sees a promising select it now tries to figure out whether the condition of the select is known in any of the predecessors and if so it maps the operands appropriately. llvm-svn: 121859
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