machine-sink.ll
547 Bytes
; RUN: llc < %s -mtriple=x86_64-pc-linux | FileCheck %s
; RUN: llc < %s -mtriple=x86_64-pc-linux -check-bfi-unknown-block-queries=true | FileCheck %s
; Checks if movl $1 is sinked to critical edge.
; CHECK-NOT: movl $1
; CHECK: jbe
; CHECK: movl $1
define i32 @test(i32 %n, i32 %k) nounwind {
entry:
%cmp = icmp ugt i32 %k, %n
br i1 %cmp, label %ifthen, label %ifend, !prof !1
ifthen:
%y = add i32 %k, 2
br label %ifend
ifend:
%ret = phi i32 [ 1, %entry ] , [ %y, %ifthen]
ret i32 %ret
}
!1 = !{!"branch_weights", i32 100, i32 1}