[llvm-commits] CVS: llvm/test/Regression/Transforms/InstCombine/cast_ptr.ll

[Andrew Lenharth]

Changes in directory llvm/test/Regression/Transforms/InstCombine:

cast_ptr.ll added (r1.1)
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Log message:

Inspired by the linux kernel, the more we keep adds in the pointer realm, the better pointer analysis works.

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Diffs of the changes:  (+15 -0)

 cast_ptr.ll |   15 +++++++++++++++
 1 files changed, 15 insertions(+)


Index: llvm/test/Regression/Transforms/InstCombine/cast_ptr.ll
diff -c /dev/null llvm/test/Regression/Transforms/InstCombine/cast_ptr.ll:1.1
*** /dev/null	Tue Sep 19 13:23:49 2006
--- llvm/test/Regression/Transforms/InstCombine/cast_ptr.ll	Tue Sep 19 13:23:39 2006
***************
*** 0 ****
--- 1,15 ----
+ ; Tests to make sure elimination of casts is working correctly
+ ; RUN: llvm-as < %s | opt -instcombine -disable-output &&
+ ; RUN: llvm-as < %s | opt -instcombine | llvm-dis | not grep cast
+ 
+ target pointersize = 32
+ 
+ implementation
+ 
+ sbyte* %test1(sbyte* %t) {
+ 	%tmpc = cast sbyte* %t to uint
+ 	%tmpa = add uint %tmpc, 32
+ 	%tv = cast uint %tmpa to sbyte*
+ 	ret sbyte* %tv
+ }
+