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| ; RUN: opt -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, i16* null, align 2
; CHECK-NEXT: %g.0.g.0..pr = load i16, i16* 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 i16* [ undef, %for.cond18 ], [ null, %l1.loopexit ]
%0 = load i16, i16* %h.0, align 2
store i16 %0, i16* null, align 2
%g.0.g.0..pr = load i16, i16* null, align 2
%tobool15 = icmp eq i16 %g.0.g.0..pr, 0
ret void
for.cond18:
br label %l1
}
|