From c05aa958b1244bd632431d6715cf3088c14a09c3 Mon Sep 17 00:00:00 2001 From: Benjamin Kramer Date: Fri, 1 Feb 2013 15:21:10 +0000 Subject: 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. llvm-svn: 174179 --- llvm/test/Transforms/InstSimplify/ptr_diff.ll | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'llvm/test/Transforms') diff --git a/llvm/test/Transforms/InstSimplify/ptr_diff.ll b/llvm/test/Transforms/InstSimplify/ptr_diff.ll index 1eb1fd4c097..86516280696 100644 --- a/llvm/test/Transforms/InstSimplify/ptr_diff.ll +++ b/llvm/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 +} -- cgit v1.2.3