| ; RUN: opt -S -licm < %s | FileCheck %s --check-prefix=IR-AFTER-TRANSFORM |
| ; RUN: opt -analyze -scalar-evolution -licm -scalar-evolution < %s | FileCheck %s --check-prefix=SCEV-EXPRS |
| |
| declare void @clobber() |
| |
| define void @f_0(i1* %loc) { |
| ; IR-AFTER-TRANSFORM-LABEL: @f_0( |
| ; IR-AFTER-TRANSFORM: loop.outer: |
| ; IR-AFTER-TRANSFORM-NEXT: call void @clobber() |
| ; IR-AFTER-TRANSFORM-NEXT: %cond = load i1, i1* %loc |
| ; IR-AFTER-TRANSFORM-NEXT: br label %loop.inner |
| |
| ; SCEV-EXPRS: Classifying expressions for: @f_0 |
| ; SCEV-EXPRS: Classifying expressions for: @f_0 |
| ; SCEV-EXPRS: %cond = load i1, i1* %loc |
| ; SCEV-EXPRS-NEXT: --> {{.*}} LoopDispositions: { %loop.outer: Variant, %loop.inner: Invariant } |
| |
| entry: |
| br label %loop.outer |
| |
| loop.outer: |
| call void @clobber() |
| br label %loop.inner |
| |
| loop.inner: |
| %cond = load i1, i1* %loc |
| br i1 %cond, label %loop.inner, label %leave.inner |
| |
| leave.inner: |
| br label %loop.outer |
| } |
