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7c9c6ed761
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
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230794 91177308-0d34-0410-b5e6-96231b3b80d8
21 lines
457 B
LLVM
21 lines
457 B
LLVM
; RUN: opt < %s -basicaa -gvn -S | FileCheck %s
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%t = type { i32 }
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declare void @test1f(i8*)
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define void @test1(%t* noalias %stuff ) {
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%p = getelementptr inbounds %t, %t* %stuff, i32 0, i32 0
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%before = load i32, i32* %p
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call void @test1f(i8* null)
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%after = load i32, i32* %p ; <--- This should be a dead load
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%sum = add i32 %before, %after
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store i32 %sum, i32* %p
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ret void
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; CHECK: load
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; CHECK-NOT: load
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; CHECK: ret void
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}
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