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| author | Arnold Schwaighofer <aschwaighofer@apple.com> | 2013-08-20 21:21:45 +0000 |
|---|---|---|
| committer | Arnold Schwaighofer <aschwaighofer@apple.com> | 2013-08-20 21:21:45 +0000 |
| commit | 16a2253e4011d27a9426f81f55501fd5dfb863bd (patch) | |
| tree | 0bbd22cce6aac60f5be4a8f48f226a48dcb0c78d /test/Transforms/SLPVectorizer/X86 | |
| parent | 80f495aab0b1103b880196191af56f1d1c473ea1 (diff) | |
| download | external_llvm-16a2253e4011d27a9426f81f55501fd5dfb863bd.zip external_llvm-16a2253e4011d27a9426f81f55501fd5dfb863bd.tar.gz external_llvm-16a2253e4011d27a9426f81f55501fd5dfb863bd.tar.bz2 | |
SLPVectorizer: Fix invalid iterator errors
Update iterator when the SLP vectorizer changes the instructions in the basic
block by restarting the traversal of the basic block.
Patch by Yi Jiang!
Fixes PR 16899.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188832 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/Transforms/SLPVectorizer/X86')
| -rw-r--r-- | test/Transforms/SLPVectorizer/X86/pr16899.ll | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/test/Transforms/SLPVectorizer/X86/pr16899.ll b/test/Transforms/SLPVectorizer/X86/pr16899.ll new file mode 100644 index 0000000..d715239 --- /dev/null +++ b/test/Transforms/SLPVectorizer/X86/pr16899.ll @@ -0,0 +1,30 @@ +; RUN: opt < %s -slp-vectorizer -S -mtriple=i386--netbsd -mcpu=i486 +target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:32:32-n8:16:32-S128" +target triple = "i386--netbsd" + +@a = common global i32* null, align 4 + +; Function Attrs: noreturn nounwind readonly +define i32 @fn1() #0 { +entry: + %0 = load i32** @a, align 4, !tbaa !0 + %1 = load i32* %0, align 4, !tbaa !3 + %arrayidx1 = getelementptr inbounds i32* %0, i32 1 + %2 = load i32* %arrayidx1, align 4, !tbaa !3 + br label %do.body + +do.body: ; preds = %do.body, %entry + %c.0 = phi i32 [ %2, %entry ], [ %add2, %do.body ] + %b.0 = phi i32 [ %1, %entry ], [ %add, %do.body ] + %add = add nsw i32 %b.0, %c.0 + %add2 = add nsw i32 %add, 1 + br label %do.body +} + +attributes #0 = { noreturn nounwind readonly "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf"="true" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" } + +!0 = metadata !{metadata !"any pointer", metadata !1} +!1 = metadata !{metadata !"omnipotent char", metadata !2} +!2 = metadata !{metadata !"Simple C/C++ TBAA"} +!3 = metadata !{metadata !"int", metadata !1} + |