[llvm-commits] CVS: llvm/test/Regression/Transforms/LoopStrengthReduce/dont-hoist-simple-loop-constants.ll
Chris Lattner
lattner at cs.uiuc.edu
Fri Sep 9 18:14:48 PDT 2005
Changes in directory llvm/test/Regression/Transforms/LoopStrengthReduce:
dont-hoist-simple-loop-constants.ll added (r1.1)
---
Log message:
new testcase
---
Diffs of the changes: (+24 -0)
dont-hoist-simple-loop-constants.ll | 24 ++++++++++++++++++++++++
1 files changed, 24 insertions(+)
Index: llvm/test/Regression/Transforms/LoopStrengthReduce/dont-hoist-simple-loop-constants.ll
diff -c /dev/null llvm/test/Regression/Transforms/LoopStrengthReduce/dont-hoist-simple-loop-constants.ll:1.1
*** /dev/null Fri Sep 9 20:14:47 2005
--- llvm/test/Regression/Transforms/LoopStrengthReduce/dont-hoist-simple-loop-constants.ll Fri Sep 9 20:14:37 2005
***************
*** 0 ****
--- 1,24 ----
+ ; RUN: llvm-as < %s | opt -loop-reduce | llvm-dis | not grep 'cast uint 1 to uint'
+ ; The setlt wants to use a value that is incremented one more than the dominant
+ ; IV. Don't insert the 1 outside the loop, preventing folding it into the add.
+
+ implementation ; Functions:
+
+ void %test([700 x int]* %nbeaux_.0__558, int* %i_.16574) {
+ then.0:
+ br label %no_exit.2
+
+ no_exit.2: ; preds = %no_exit.2, %then.0
+ %indvar630 = phi uint [ 0, %then.0 ], [ %indvar.next631, %no_exit.2 ] ; <uint> [#uses=3]
+ %indvar630 = cast uint %indvar630 to int ; <int> [#uses=1]
+ %tmp.38 = getelementptr [700 x int]* %nbeaux_.0__558, int 0, uint %indvar630 ; <int*> [#uses=1]
+ store int 0, int* %tmp.38
+ %inc.2 = add int %indvar630, 2 ; <int> [#uses=2]
+ %tmp.34 = setlt int %inc.2, 701 ; <bool> [#uses=1]
+ %indvar.next631 = add uint %indvar630, 1 ; <uint> [#uses=1]
+ br bool %tmp.34, label %no_exit.2, label %loopexit.2.loopexit
+
+ loopexit.2.loopexit: ; preds = %no_exit.2
+ store int %inc.2, int* %i_.16574
+ ret void
+ }
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