diff options
Diffstat (limited to 'test/Transforms/InstCombine/cast_ptr.ll')
| -rw-r--r-- | test/Transforms/InstCombine/cast_ptr.ll | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/test/Transforms/InstCombine/cast_ptr.ll b/test/Transforms/InstCombine/cast_ptr.ll index fd600a8..6544e7d 100644 --- a/test/Transforms/InstCombine/cast_ptr.ll +++ b/test/Transforms/InstCombine/cast_ptr.ll @@ -1,8 +1,15 @@ ; Tests to make sure elimination of casts is working correctly -; RUN: llvm-as < %s | opt -instcombine | llvm-dis | notcast +; RUN: opt < %s -instcombine -S | FileCheck %s target datalayout = "p:32:32" +; This shouldn't convert to getelementptr because the relationship +; between the arithmetic and the layout of allocated memory is +; entirely unknown. +; CHECK: @test1 +; CHECK: ptrtoint +; CHECK: add +; CHECK: inttoptr define i8* @test1(i8* %t) { %tmpc = ptrtoint i8* %t to i32 ; <i32> [#uses=1] %tmpa = add i32 %tmpc, 32 ; <i32> [#uses=1] @@ -10,6 +17,9 @@ define i8* @test1(i8* %t) { ret i8* %tv } +; These casts should be folded away. +; CHECK: @test2 +; CHECK: icmp eq i8* %a, %b define i1 @test2(i8* %a, i8* %b) { %tmpa = ptrtoint i8* %a to i32 ; <i32> [#uses=1] %tmpb = ptrtoint i8* %b to i32 ; <i32> [#uses=1] |
