| ; RUN: opt -passes=newgvn -S %s | FileCheck %s |
| ; REQUIRES: asserts |
| |
| ; CHECK-LABEL: define void @tinkywinky() { |
| ; CHECK: entry: |
| ; CHECK-NEXT: br i1 undef, label %for.cond18, label %for.cond.preheader |
| ; CHECK: for.cond.preheader: |
| ; CHECK-NEXT: br label %for.cond2thread-pre-split |
| ; CHECK: for.cond2thread-pre-split: |
| ; CHECK-NEXT: %conv24 = phi i32 [ 0, %for.cond.preheader ], [ %conv, %for.inc.split ] |
| ; CHECK-NEXT: br label %for.inc.split |
| ; CHECK: for.inc.split: |
| ; CHECK-NEXT: %add = shl nsw i32 %conv24, 16 |
| ; CHECK-NEXT: %sext23 = add i32 %add, 65536 |
| ; CHECK-NEXT: %conv = ashr exact i32 %sext23, 16 |
| ; CHECK-NEXT: %cmp = icmp slt i32 %sext23, 3604480 |
| ; CHECK-NEXT: br i1 %cmp, label %for.cond2thread-pre-split, label %l1.loopexit |
| ; CHECK: l1.loopexit: |
| ; CHECK-NEXT: br label %l1 |
| ; CHECK: l1: |
| ; CHECK-NEXT: %0 = load i16, ptr null, align 2 |
| ; CHECK-NEXT: %g.0.g.0..pr = load i16, ptr null, align 2 |
| ; CHECK-NEXT: ret void |
| ; CHECK: for.cond18: |
| ; CHECK-NEXT: br label %l1 |
| ; CHECK-NEXT: } |
| |
| define void @tinkywinky() { |
| entry: |
| br i1 undef, label %for.cond18, label %for.cond.preheader |
| |
| for.cond.preheader: |
| br label %for.cond2thread-pre-split |
| |
| for.cond2thread-pre-split: |
| %conv24 = phi i32 [ 0, %for.cond.preheader ], [ %conv, %for.inc.split ] |
| br label %for.inc.split |
| |
| for.inc.split: |
| %add = shl nsw i32 %conv24, 16 |
| %sext23 = add i32 %add, 65536 |
| %conv = ashr exact i32 %sext23, 16 |
| %cmp = icmp slt i32 %sext23, 3604480 |
| br i1 %cmp, label %for.cond2thread-pre-split, label %l1.loopexit |
| |
| l1.loopexit: |
| br label %l1 |
| |
| l1: |
| %h.0 = phi ptr [ undef, %for.cond18 ], [ null, %l1.loopexit ] |
| %0 = load i16, ptr %h.0, align 2 |
| store i16 %0, ptr null, align 2 |
| %g.0.g.0..pr = load i16, ptr null, align 2 |
| %tobool15 = icmp eq i16 %g.0.g.0..pr, 0 |
| ret void |
| |
| for.cond18: |
| br label %l1 |
| } |