File: machine-sink.ll

package info (click to toggle)
llvm-toolchain-9 1%3A9.0.1-16
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 882,436 kB
  • sloc: cpp: 4,167,636; ansic: 714,256; asm: 457,610; python: 155,927; objc: 65,094; sh: 42,856; lisp: 26,908; perl: 7,786; pascal: 7,722; makefile: 6,881; ml: 5,581; awk: 3,648; cs: 2,027; xml: 888; javascript: 381; ruby: 156
file content (21 lines) | stat: -rw-r--r-- 453 bytes parent folder | download | duplicates (7) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
 
; RUN: llc < %s -mtriple=x86_64-pc-linux | 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}