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| author | Dan Gohman <gohman@apple.com> | 2010-10-25 16:16:27 +0000 |
|---|---|---|
| committer | Dan Gohman <gohman@apple.com> | 2010-10-25 16:16:27 +0000 |
| commit | 17a0bf996fb61cdd43cec2cfc7db53145bbc767a (patch) | |
| tree | 6deb2f1f4f5db868cee7f727e07af111a5cd3b99 /test/Transforms/InstCombine | |
| parent | 970bfcc7d8b9991430caa7ab33975617f3f4c40d (diff) | |
| download | external_llvm-17a0bf996fb61cdd43cec2cfc7db53145bbc767a.zip external_llvm-17a0bf996fb61cdd43cec2cfc7db53145bbc767a.tar.gz external_llvm-17a0bf996fb61cdd43cec2cfc7db53145bbc767a.tar.bz2 | |
Fix a case where instcombine was stripping metadata (and alignment)
from stores when folding in bitcasts.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117265 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/Transforms/InstCombine')
| -rw-r--r-- | test/Transforms/InstCombine/bitcast-store.ll | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/test/Transforms/InstCombine/bitcast-store.ll b/test/Transforms/InstCombine/bitcast-store.ll new file mode 100644 index 0000000..e4a61e9 --- /dev/null +++ b/test/Transforms/InstCombine/bitcast-store.ll @@ -0,0 +1,21 @@ +; RUN: opt -S -instcombine < %s | FileCheck %s + +; Instcombine should preserve metadata and alignment while +; folding a bitcast into a store. + +; CHECK: store i32 (...)** bitcast (i8** getelementptr inbounds ([5 x i8*]* @G, i64 0, i64 2) to i32 (...)**), i32 (...)*** %0, align 16, !tag !0 + +target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64" + +%struct.A = type { i32 (...)** } + +@G = external constant [5 x i8*] + +define void @foo(%struct.A* %a) nounwind { +entry: + %0 = bitcast %struct.A* %a to i8*** + store i8** getelementptr inbounds ([5 x i8*]* @G, i64 0, i64 2), i8*** %0, align 16, !tag !0 + ret void +} + +!0 = metadata !{metadata !"hello"} |