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41 lines
1.2 KiB
LLVM
41 lines
1.2 KiB
LLVM
; Check that this test makes INDVAR and related stuff dead.
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; RUN: opt < %s -loop-reduce -S | FileCheck %s
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; CHECK: phi
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; CHECK: phi
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; CHECK-NOT: phi
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declare i1 @pred()
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define void @test1({ i32, i32 }* %P) {
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; <label>:0
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br label %Loop
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Loop: ; preds = %Loop, %0
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%INDVAR = phi i32 [ 0, %0 ], [ %INDVAR2, %Loop ] ; <i32> [#uses=3]
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%gep1 = getelementptr { i32, i32 }* %P, i32 %INDVAR, i32 0 ; <i32*> [#uses=1]
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store i32 0, i32* %gep1
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%gep2 = getelementptr { i32, i32 }* %P, i32 %INDVAR, i32 1 ; <i32*> [#uses=1]
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store i32 0, i32* %gep2
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%INDVAR2 = add i32 %INDVAR, 1 ; <i32> [#uses=1]
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%cond = call i1 @pred( ) ; <i1> [#uses=1]
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br i1 %cond, label %Loop, label %Out
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Out: ; preds = %Loop
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ret void
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}
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define void @test2([2 x i32]* %P) {
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; <label>:0
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br label %Loop
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Loop: ; preds = %Loop, %0
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%INDVAR = phi i32 [ 0, %0 ], [ %INDVAR2, %Loop ] ; <i32> [#uses=3]
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%gep1 = getelementptr [2 x i32]* %P, i32 %INDVAR, i64 0 ; <i32*> [#uses=1]
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store i32 0, i32* %gep1
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%gep2 = getelementptr [2 x i32]* %P, i32 %INDVAR, i64 1 ; <i32*> [#uses=1]
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store i32 0, i32* %gep2
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%INDVAR2 = add i32 %INDVAR, 1 ; <i32> [#uses=1]
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%cond = call i1 @pred( ) ; <i1> [#uses=1]
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br i1 %cond, label %Loop, label %Out
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Out: ; preds = %Loop
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ret void
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}
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