[llvm-commits] CVS: llvm/test/Regression/Transforms/LoopStrengthReduce/phi_node_update_multiple_preds.ll

[Chris Lattner]

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

phi_node_update_multiple_preds.ll added (r1.1)
---
Log message:

new testcase


---
Diffs of the changes:  (+29 -0)

 phi_node_update_multiple_preds.ll |   29 +++++++++++++++++++++++++++++
 1 files changed, 29 insertions(+)


Index: llvm/test/Regression/Transforms/LoopStrengthReduce/phi_node_update_multiple_preds.ll
diff -c /dev/null llvm/test/Regression/Transforms/LoopStrengthReduce/phi_node_update_multiple_preds.ll:1.1
*** /dev/null	Tue Aug  9 19:33:11 2005
--- llvm/test/Regression/Transforms/LoopStrengthReduce/phi_node_update_multiple_preds.ll	Tue Aug  9 19:33:01 2005
***************
*** 0 ****
--- 1,29 ----
+ ; RUN: llvm-as < %s | opt -loop-reduce -disable-output
+ ; LSR should not crash on this.
+ 
+ fastcc void %loadloop() {
+ entry:
+ 	switch sbyte 0, label %shortcirc_next [
+ 		 sbyte 32, label %loopexit.2
+ 		 sbyte 59, label %loopexit.2
+ 	]
+ 
+ shortcirc_next:		; preds = %no_exit.2, %entry
+ 	%indvar37 = phi uint [ 0, %entry ], [ %indvar.next38, %no_exit.2 ]		; <uint> [#uses=3]
+ 	%wp.2.4 = getelementptr sbyte* null, uint %indvar37		; <sbyte*> [#uses=1]
+ 	br bool false, label %loopexit.2, label %no_exit.2
+ 
+ no_exit.2:		; preds = %shortcirc_next
+ 	%wp.2.4.rec = cast uint %indvar37 to int		; <int> [#uses=1]
+ 	%inc.1.rec = add int %wp.2.4.rec, 1		; <int> [#uses=1]
+ 	%inc.1 = getelementptr sbyte* null, int %inc.1.rec		; <sbyte*> [#uses=2]
+ 	%indvar.next38 = add uint %indvar37, 1		; <uint> [#uses=1]
+ 	switch sbyte 0, label %shortcirc_next [
+ 		 sbyte 32, label %loopexit.2
+ 		 sbyte 59, label %loopexit.2
+ 	]
+ 
+ loopexit.2:		; preds = %no_exit.2, %no_exit.2, %shortcirc_next, %entry, %entry
+ 	%wp.2.7 = phi sbyte* [ null, %entry ], [ null, %entry ], [ %wp.2.4, %shortcirc_next ], [ %inc.1, %no_exit.2 ], [ %inc.1, %no_exit.2 ]		; <sbyte*> [#uses=0]
+ 	ret void
+ }