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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
32 lines
897 B
LLVM
32 lines
897 B
LLVM
; RUN: opt -tbaa -basicaa -gvn -S < %s | FileCheck %s
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target datalayout = "e-p:64:64:64"
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; GVN should preserve the TBAA tag on loads when doing PRE.
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; CHECK-LABEL: @test(
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; CHECK: %tmp33.pre = load i16, i16* %P, align 2, !tbaa !0
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; CHECK: br label %for.body
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define void @test(i16 *%P, i16* %Q) nounwind {
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entry:
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br i1 undef, label %bb.nph, label %for.end
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bb.nph: ; preds = %entry
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br label %for.body
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for.body: ; preds = %for.body, %bb.nph
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%tmp33 = load i16, i16* %P, align 2, !tbaa !0
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store i16 %tmp33, i16* %Q
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store i16 0, i16* %P, align 2, !tbaa !0
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br i1 false, label %for.end, label %for.body
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for.end: ; preds = %for.body, %entry
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ret void
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}
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!0 = !{!3, !3, i64 0}
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!1 = !{!"omnipotent char", !2}
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!2 = !{!"Simple C/C++ TBAA", null}
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!3 = !{!"short", !1}
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