| ; RUN: opt < %s -loop-reduce -gvn -S | FileCheck %s |
| |
| target datalayout = "e-i64:64-v16:16-v32:32-n16:32:64" |
| |
| define void @_Z3fooPfll(float* nocapture readonly %input, i64 %n, i64 %s) { |
| ; CHECK-LABEL: @_Z3fooPfll( |
| entry: |
| %mul = shl nsw i64 %s, 2 |
| ; CHECK: %mul = shl i64 %s, 2 |
| tail call void @_Z3bazl(i64 %mul) #2 |
| ; CHECK-NEXT: call void @_Z3bazl(i64 %mul) |
| %cmp.5 = icmp sgt i64 %n, 0 |
| br i1 %cmp.5, label %for.body.preheader, label %for.cond.cleanup |
| |
| for.body.preheader: ; preds = %entry |
| br label %for.body |
| |
| for.cond.cleanup.loopexit: ; preds = %for.body |
| br label %for.cond.cleanup |
| |
| for.cond.cleanup: ; preds = %for.cond.cleanup.loopexit, %entry |
| ret void |
| |
| for.body: ; preds = %for.body.preheader, %for.body |
| %i.06 = phi i64 [ %add, %for.body ], [ 0, %for.body.preheader ] |
| %arrayidx = getelementptr inbounds float, float* %input, i64 %i.06 |
| ; LoopStrengthReduce should reuse %mul as the stride. |
| ; CHECK: getelementptr i1, i1* {{[^,]+}}, i64 %mul |
| %0 = load float, float* %arrayidx, align 4 |
| tail call void @_Z3barf(float %0) #2 |
| %add = add nsw i64 %i.06, %s |
| %cmp = icmp slt i64 %add, %n |
| br i1 %cmp, label %for.body, label %for.cond.cleanup.loopexit |
| } |
| |
| declare void @_Z3bazl(i64) |
| |
| declare void @_Z3barf(float) |
