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ab043ff680
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
26 lines
535 B
LLVM
26 lines
535 B
LLVM
; RUN: opt < %s -basicaa -gvn -S | FileCheck %s
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define i32 @main(i32** %p, i32 %x, i32 %y) {
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block1:
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%cmp = icmp eq i32 %x, %y
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br i1 %cmp , label %block2, label %block3
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block2:
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%a = load i32*, i32** %p
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br label %block4
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block3:
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%b = load i32*, i32** %p
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br label %block4
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block4:
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; CHECK-NOT: %existingPHI = phi
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; CHECK: %DEAD = phi
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%existingPHI = phi i32* [ %a, %block2 ], [ %b, %block3 ]
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%DEAD = load i32*, i32** %p
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%c = load i32, i32* %DEAD
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%d = load i32, i32* %existingPHI
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%e = add i32 %c, %d
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ret i32 %e
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}
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