29 lines
640 B
LLVM
29 lines
640 B
LLVM
|
; RUN: opt -S -jump-threading < %s | FileCheck %s
|
||
|
|
|
||
|
|
|
||
|
|
; CHECK-LABEL: @f(
|
||
|
|
; CHECK-LABEL: entry:
|
||
|
|
; CHECK-NEXT: br label %[[loop:.*]]
|
||
|
|
; CHECK: [[loop]]:
|
||
|
|
; CHECK-NEXT: br label %[[loop]]
|
||
|
|
|
||
|
|
define void @f() {
|
||
|
|
entry:
|
||
|
|
br label %for.cond1
|
||
|
|
|
||
|
|
if.end16:
|
||
|
|
%phi1 = phi i32 [ undef, %for.cond1 ]
|
||
|
|
%g.3 = phi i32 [ %g.1, %for.cond1 ]
|
||
|
|
%sext = shl i32 %g.3, 16
|
||
|
|
%conv20 = ashr exact i32 %sext, 16
|
||
|
|
%tobool21 = icmp eq i32 %phi1, 0
|
||
|
|
br i1 %tobool21, label %lor.rhs, label %for.cond1
|
||
|
|
|
||
|
|
for.cond1:
|
||
|
|
%g.1 = phi i32 [ 0, %entry ], [ 0, %lor.rhs ], [ %g.3, %if.end16 ]
|
||
|
|
br i1 undef, label %lor.rhs, label %if.end16
|
||
|
|
|
||
|
|
lor.rhs:
|
||
|
|
br label %for.cond1
|
||
|
|
}
|