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609a56f4f8
When you have multiple LCSSA (single-operand) PHIs that are converted into two-operand PHIs due to versioning, only assert that the PHI currently being converted has a single operand. I.e. we don't want to check PHIs that were converted earlier in the loop. Fixes PR27023. Thanks to Karl-Johan Karlsson for the minimized testcase! llvm-svn: 264081
36 lines
1.1 KiB
LLVM
36 lines
1.1 KiB
LLVM
; RUN: opt -basicaa -loop-versioning -S < %s | FileCheck %s
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target triple = "x86_64-unknown-linux-gnu"
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define void @fill(i8** %ls1.20, i8** %ls2.21, i8* %cse3.22) {
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; CHECK: bb1.lver.check:
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; CHECK: br i1 %memcheck.conflict, label %bb1.ph.lver.orig, label %bb1.ph
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bb1.ph:
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%ls1.20.promoted = load i8*, i8** %ls1.20
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%ls2.21.promoted = load i8*, i8** %ls2.21
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br label %bb1
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bb1:
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%_tmp302 = phi i8* [ %ls2.21.promoted, %bb1.ph ], [ %_tmp30, %bb1 ]
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%_tmp281 = phi i8* [ %ls1.20.promoted, %bb1.ph ], [ %_tmp28, %bb1 ]
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%_tmp14 = getelementptr i8, i8* %_tmp281, i16 -1
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%_tmp15 = load i8, i8* %_tmp14
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%add = add i8 %_tmp15, 1
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store i8 %add, i8* %_tmp281
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store i8 %add, i8* %_tmp302
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%_tmp28 = getelementptr i8, i8* %_tmp281, i16 1
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%_tmp30 = getelementptr i8, i8* %_tmp302, i16 1
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br i1 false, label %bb1, label %bb3.loopexit
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bb3.loopexit:
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%_tmp30.lcssa = phi i8* [ %_tmp30, %bb1 ]
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%_tmp15.lcssa = phi i8 [ %_tmp15, %bb1 ]
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%_tmp28.lcssa = phi i8* [ %_tmp28, %bb1 ]
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store i8* %_tmp28.lcssa, i8** %ls1.20
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store i8 %_tmp15.lcssa, i8* %cse3.22
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store i8* %_tmp30.lcssa, i8** %ls2.21
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br label %bb3
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bb3:
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ret void
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}
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