[llvm-commits] CVS: llvm/test/Transforms/InstCombine/2007-03-26-BadShiftMask.ll

[Reid Spencer]

Changes in directory llvm/test/Transforms/InstCombine:

2007-03-26-BadShiftMask.ll added (r1.1)
---
Log message:

Another test case for PR1271: http://llvm.org/PR1271  where bad shift masks were generated.


---
Diffs of the changes:  (+35 -0)

 2007-03-26-BadShiftMask.ll |   35 +++++++++++++++++++++++++++++++++++
 1 files changed, 35 insertions(+)


Index: llvm/test/Transforms/InstCombine/2007-03-26-BadShiftMask.ll
diff -c /dev/null llvm/test/Transforms/InstCombine/2007-03-26-BadShiftMask.ll:1.1
*** /dev/null	Mon Mar 26 18:49:03 2007
--- llvm/test/Transforms/InstCombine/2007-03-26-BadShiftMask.ll	Mon Mar 26 18:48:52 2007
***************
*** 0 ****
--- 1,35 ----
+ ; PR1271
+ ; RUN: llvm-as < %s | opt -instcombine | llvm-dis | \
+ ; RUN:    grep 'ashr i32 %.mp137, 2'
+ target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64"
+ target triple = "i686-pc-linux-gnu"
+ 
+ implementation   ; Functions:
+ 
+ define i1 @test(i32* %tmp141, i32* %tmp145, 
+             i32 %b8, i32 %iftmp.430.0, i32* %tmp134.out, i32* %tmp137.out)
+ {
+ newFuncRoot:
+ 	%tmp133 = and i32 %b8, 1		; <i32> [#uses=1]
+ 	%tmp134 = shl i32 %tmp133, 3		; <i32> [#uses=3]
+ 	%tmp136 = ashr i32 %b8, 1		; <i32> [#uses=1]
+ 	%tmp137 = shl i32 %tmp136, 3		; <i32> [#uses=3]
+ 	%tmp139 = ashr i32 %tmp134, 2		; <i32> [#uses=1]
+ 	store i32 %tmp139, i32* %tmp141
+ 	%tmp143 = ashr i32 %tmp137, 2		; <i32> [#uses=1]
+ 	store i32 %tmp143, i32* %tmp145
+ 	icmp eq i32 %iftmp.430.0, 0		; <i1>:0 [#uses=1]
+ 	zext i1 %0 to i8		; <i8>:1 [#uses=1]
+ 	icmp ne i8 %1, 0		; <i1>:2 [#uses=1]
+ 	br i1 %2, label %cond_true147.exitStub, label %cond_false252.exitStub
+ 
+ cond_true147.exitStub:		; preds = %newFuncRoot
+ 	store i32 %tmp134, i32* %tmp134.out
+ 	store i32 %tmp137, i32* %tmp137.out
+ 	ret i1 true
+ 
+ cond_false252.exitStub:		; preds = %newFuncRoot
+ 	store i32 %tmp134, i32* %tmp134.out
+ 	store i32 %tmp137, i32* %tmp137.out
+ 	ret i1 false
+ }