diff options
Diffstat (limited to 'test/Transforms/InstCombine/2007-02-07-PointerCast.ll')
| -rw-r--r-- | test/Transforms/InstCombine/2007-02-07-PointerCast.ll | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/test/Transforms/InstCombine/2007-02-07-PointerCast.ll b/test/Transforms/InstCombine/2007-02-07-PointerCast.ll new file mode 100644 index 000000000000..ce9eb3c69d4b --- /dev/null +++ b/test/Transforms/InstCombine/2007-02-07-PointerCast.ll @@ -0,0 +1,22 @@ +;RUN: llvm-as < %s | opt -instcombine | llvm-dis | grep zext + +; Make sure the uint isn't removed. Instcombine in llvm 1.9 was dropping the +; uint cast which was causing a sign extend. This only affected code with +; pointers in the high half of memory, so it wasn't noticed much +; compile a kernel though... + +target datalayout = "e-p:32:32" +@str = internal constant [6 x i8] c"%llx\0A\00" ; <[6 x i8]*> [#uses=1] + +declare i32 @printf(i8*, ...) + +define i32 @main(i32 %x, i8** %a) { +entry: + %tmp = getelementptr [6 x i8]* @str, i32 0, i64 0 ; <i8*> [#uses=1] + %tmp1 = load i8** %a ; <i8*> [#uses=1] + %tmp2 = ptrtoint i8* %tmp1 to i32 ; <i32> [#uses=1] + %tmp3 = zext i32 %tmp2 to i64 ; <i64> [#uses=1] + %tmp.upgrd.1 = call i32 (i8*, ...)* @printf( i8* %tmp, i64 %tmp3 ) ; <i32> [#uses=0] + ret i32 0 +} + |