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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
17 lines
553 B
LLVM
17 lines
553 B
LLVM
; Test to make sure unused llvm.invariant.start calls are not trivially eliminated
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; RUN: opt < %s -instcombine -S | FileCheck %s
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declare void @g(i8*)
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declare {}* @llvm.invariant.start(i64, i8* nocapture) nounwind readonly
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define i8 @f() {
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%a = alloca i8 ; <i8*> [#uses=4]
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store i8 0, i8* %a
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%i = call {}* @llvm.invariant.start(i64 1, i8* %a) ; <{}*> [#uses=0]
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; CHECK: call {}* @llvm.invariant.start
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call void @g(i8* %a)
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%r = load i8, i8* %a ; <i8> [#uses=1]
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ret i8 %r
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}
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