1
0
mirror of https://github.com/RPCS3/llvm-mirror.git synced 2024-11-26 12:43:36 +01:00
llvm-mirror/test/Transforms/LoopStrengthReduce/ops_after_indvar.ll
Eric Christopher a62270de2c Revert "Temporarily Revert "Add basic loop fusion pass.""
The reversion apparently deleted the test/Transforms directory.

Will be re-reverting again.

llvm-svn: 358552
2019-04-17 04:52:47 +00:00

27 lines
754 B
LLVM

; Check that this test makes INDVAR and related stuff dead, because P[indvar]
; gets reduced, making INDVAR dead.
; RUN: opt < %s -loop-reduce -S | not grep INDVAR
target datalayout = "e-p:32:32:32-n32"
declare i1 @pred()
declare i32 @getidx()
define void @test([10000 x i32]* %P) {
; <label>:0
br label %Loop
Loop: ; preds = %Loop, %0
%INDVAR = phi i32 [ 0, %0 ], [ %INDVAR2, %Loop ] ; <i32> [#uses=2]
%idx = call i32 @getidx( ) ; <i32> [#uses=1]
%STRRED = getelementptr [10000 x i32], [10000 x i32]* %P, i32 %INDVAR, i32 %idx ; <i32*> [#uses=1]
store i32 0, i32* %STRRED
%INDVAR2 = add i32 %INDVAR, 1 ; <i32> [#uses=1]
%cond = call i1 @pred( ) ; <i1> [#uses=1]
br i1 %cond, label %Loop, label %Out
Out: ; preds = %Loop
ret void
}