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

[Chris Lattner]

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

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

Add test for this:

Allow operands after the induction variable (no restrictions):

  int x;
  for (i)
   j = .....
   a[i][x][j]



---
Diffs of the changes:  (+22 -0)

 ops_after_indvar.ll |   22 ++++++++++++++++++++++
 1 files changed, 22 insertions(+)


Index: llvm/test/Regression/Transforms/LoopStrengthReduce/ops_after_indvar.ll
diff -c /dev/null llvm/test/Regression/Transforms/LoopStrengthReduce/ops_after_indvar.ll:1.1
*** /dev/null	Sun Mar  6 16:01:52 2005
--- llvm/test/Regression/Transforms/LoopStrengthReduce/ops_after_indvar.ll	Sun Mar  6 16:01:42 2005
***************
*** 0 ****
--- 1,22 ----
+ ; Check that this test makes INDVAR and related stuff dead, because P[indvar]
+ ; gets reduced, making INDVAR dead.
+ 
+ ; RUN: llvm-as < %s | opt -loop-reduce | llvm-dis | not grep INDVAR
+ 
+ declare bool %pred()
+ declare int %getidx()
+ 
+ void %test([10000 x int]* %P) {
+ 	br label %Loop
+ Loop:
+ 	%INDVAR = phi int [0, %0], [%INDVAR2, %Loop]
+ 	%idx = call int %getidx()
+ 	%STRRED = getelementptr [10000 x int]* %P, int %INDVAR, int %idx
+ 	store int 0, int* %STRRED
+ 
+ 	%INDVAR2 = add int %INDVAR, 1
+ 	%cond = call bool %pred()
+ 	br bool %cond, label %Loop, label %Out
+ Out:
+ 	ret void
+ }