llvm/test/Transforms/LoopStrengthReduce/dont_insert_redundant_ops.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

37 lines
1.2 KiB
LLVM

; Check that this test makes INDVAR and related stuff dead.
; RUN: opt < %s -loop-reduce -S | grep phi | count 2
declare i1 @pred()
define void @test1({ i32, i32 }* %P) {
; <label>:0
br label %Loop
Loop: ; preds = %Loop, %0
%INDVAR = phi i32 [ 0, %0 ], [ %INDVAR2, %Loop ] ; <i32> [#uses=3]
%gep1 = getelementptr { i32, i32 }* %P, i32 %INDVAR, i32 0 ; <i32*> [#uses=1]
store i32 0, i32* %gep1
%gep2 = getelementptr { i32, i32 }* %P, i32 %INDVAR, i32 1 ; <i32*> [#uses=1]
store i32 0, i32* %gep2
%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
}
define void @test2([2 x i32]* %P) {
; <label>:0
br label %Loop
Loop: ; preds = %Loop, %0
%INDVAR = phi i32 [ 0, %0 ], [ %INDVAR2, %Loop ] ; <i32> [#uses=3]
%gep1 = getelementptr [2 x i32]* %P, i32 %INDVAR, i64 0 ; <i32*> [#uses=1]
store i32 0, i32* %gep1
%gep2 = getelementptr [2 x i32]* %P, i32 %INDVAR, i64 1 ; <i32*> [#uses=1]
store i32 0, i32* %gep2
%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
}