| ; RUN: opt -S -indvars %s | FileCheck %s | |
| ; The indvar simplification code should ensure that the first PHI in the block | |
| ; is the canonical one! | |
| define i32 @test() { | |
| ; <label>:0 | |
| br label %Loop | |
| Loop: ; preds = %Loop, %0 | |
| ; CHECK: Loop: | |
| ; CHECK-NEXT: Canonical | |
| %NonIndvar = phi i32 [ 200, %0 ], [ %NonIndvarNext, %Loop ] ; <i32> [#uses=1] | |
| %Canonical = phi i32 [ 0, %0 ], [ %CanonicalNext, %Loop ] ; <i32> [#uses=2] | |
| store i32 %Canonical, i32* null | |
| %NonIndvarNext = sdiv i32 %NonIndvar, 2 ; <i32> [#uses=1] | |
| %CanonicalNext = add i32 %Canonical, 1 ; <i32> [#uses=1] | |
| br label %Loop | |
| } | |