| ; RUN: opt -S -passes=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, ptr null |
| %NonIndvarNext = sdiv i32 %NonIndvar, 2 ; <i32> [#uses=1] |
| %CanonicalNext = add i32 %Canonical, 1 ; <i32> [#uses=1] |
| br label %Loop |
| } |
| |
