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| author | David Majnemer <david.majnemer@gmail.com> | 2016-08-29 17:14:08 +0000 |
|---|---|---|
| committer | David Majnemer <david.majnemer@gmail.com> | 2016-08-29 17:14:08 +0000 |
| commit | e8fd5f9ffdd72fc9cfe7bd6070417cacd859ae18 (patch) | |
| tree | 590ab7ccf47a3f3c83e2b2c7d640e1e02c2f928c /llvm/test/Transforms | |
| parent | cfec5ff1b95a3e74623f096f24367a3ef23dcb5c (diff) | |
| download | bcm5719-llvm-e8fd5f9ffdd72fc9cfe7bd6070417cacd859ae18.tar.gz bcm5719-llvm-e8fd5f9ffdd72fc9cfe7bd6070417cacd859ae18.zip | |
[SimplifyCFG] Hoisting invalidates metadata
We forgot to remove optimization metadata when performing hosting during
FoldTwoEntryPHINode.
This fixes PR29163.
llvm-svn: 279980
Diffstat (limited to 'llvm/test/Transforms')
| -rw-r--r-- | llvm/test/Transforms/SimplifyCFG/PR29163.ll | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/llvm/test/Transforms/SimplifyCFG/PR29163.ll b/llvm/test/Transforms/SimplifyCFG/PR29163.ll new file mode 100644 index 00000000000..65f9090dd13 --- /dev/null +++ b/llvm/test/Transforms/SimplifyCFG/PR29163.ll @@ -0,0 +1,31 @@ +; RUN: opt -S -simplifycfg < %s | FileCheck %s +target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" +target triple = "x86_64-unknown-linux-gnu" + +@GV = external constant i64* + +define i64* @test1(i1 %cond, i8* %P) { +entry: + br i1 %cond, label %if, label %then + +then: + %bc = bitcast i8* %P to i64* + br label %join + +if: + %load = load i64*, i64** @GV, align 8, !dereferenceable !0 + br label %join + +join: + %phi = phi i64* [ %bc, %then ], [ %load, %if ] + ret i64* %phi +} + +; CHECK-LABEL: define i64* @test1( +; CHECK: %[[bc:.*]] = bitcast i8* %P to i64* +; CHECK: %[[load:.*]] = load i64*, i64** @GV, align 8{{$}} +; CHECK: %[[phi:.*]] = select i1 %cond, i64* %[[load]], i64* %[[bc]] +; CHECK: ret i64* %[[phi]] + + +!0 = !{i64 8} |
