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| author | Benjamin Kramer <benny.kra@googlemail.com> | 2013-02-01 15:21:10 +0000 |
|---|---|---|
| committer | Benjamin Kramer <benny.kra@googlemail.com> | 2013-02-01 15:21:10 +0000 |
| commit | d9f32c20da9de8798284a8007662c6557560c876 (patch) | |
| tree | 00e23e5da8922f3752751496b90f44a2865750e9 /test/Transforms/InstSimplify | |
| parent | 84d3239889c576029382c3165495e0c78b14e9eb (diff) | |
| download | llvm-d9f32c20da9de8798284a8007662c6557560c876.tar.gz llvm-d9f32c20da9de8798284a8007662c6557560c876.tar.bz2 llvm-d9f32c20da9de8798284a8007662c6557560c876.tar.xz | |
InstSimplify: stripAndComputeConstantOffsets can be called with vectors of pointers too.
Prepare it for vectors of pointers and handle simple cases. We don't handle
complicated cases because accumulateConstantOffset bails on pointer vectors.
Fixes selfhost on i386.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174179 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/Transforms/InstSimplify')
| -rw-r--r-- | test/Transforms/InstSimplify/ptr_diff.ll | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/test/Transforms/InstSimplify/ptr_diff.ll b/test/Transforms/InstSimplify/ptr_diff.ll index 1eb1fd4c09..8651628069 100644 --- a/test/Transforms/InstSimplify/ptr_diff.ll +++ b/test/Transforms/InstSimplify/ptr_diff.ll @@ -46,3 +46,14 @@ define i64 @ptrdiff3(i8* %ptr) { %diff = sub i64 %last.int, %first.int ret i64 %diff } + +define <4 x i32> @ptrdiff4(<4 x i8*> %arg) nounwind { +; Handle simple cases of vectors of pointers. +; CHECK: @ptrdiff4 +; CHECK: ret <4 x i32> zeroinitializer + %p1 = ptrtoint <4 x i8*> %arg to <4 x i32> + %bc = bitcast <4 x i8*> %arg to <4 x i32*> + %p2 = ptrtoint <4 x i32*> %bc to <4 x i32> + %sub = sub <4 x i32> %p1, %p2 + ret <4 x i32> %sub +} |