llvm-6502/test/Transforms/LoopStrengthReduce/variable_stride.ll
Dan Gohman f2f6ce65b7 Change tests from "opt %s" to "opt < %s" so that opt doesn't see the
input filename so that opt doesn't print the input filename in the
output so that grep lines in the tests don't unintentionally match
strings in the input filename.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81537 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-11 18:01:28 +00:00

19 lines
548 B
LLVM

; Check that variable strides are reduced to adds instead of multiplies.
; RUN: opt < %s -loop-reduce -S | not grep mul
declare i1 @pred(i32)
define void @test([10000 x i32]* %P, i32 %STRIDE) {
; <label>:0
br label %Loop
Loop: ; preds = %Loop, %0
%INDVAR = phi i32 [ 0, %0 ], [ %INDVAR2, %Loop ] ; <i32> [#uses=2]
%Idx = mul i32 %INDVAR, %STRIDE ; <i32> [#uses=1]
%cond = call i1 @pred( i32 %Idx ) ; <i1> [#uses=1]
%INDVAR2 = add i32 %INDVAR, 1 ; <i32> [#uses=1]
br i1 %cond, label %Loop, label %Out
Out: ; preds = %Loop
ret void
}