File: testb-je-fusion.ll

package info (click to toggle)
llvm-toolchain-3.5 1%3A3.5.2-3~bpo8%2B2
  • links: PTS, VCS
  • area: main
  • in suites: jessie-backports
  • size: 283,276 kB
  • sloc: cpp: 1,884,580; ansic: 310,787; objc: 86,612; python: 79,608; asm: 65,866; sh: 9,829; makefile: 6,068; perl: 5,589; ml: 5,254; pascal: 3,285; lisp: 1,640; xml: 686; cs: 239; csh: 117
file content (20 lines) | stat: -rw-r--r-- 459 bytes parent folder | download | duplicates (8) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
 
; RUN: llc < %s -march=x86-64 -mcpu=corei7-avx | FileCheck %s

; testb should be scheduled right before je to enable macro-fusion.

; CHECK: testb $2, %{{[abcd]}}h
; CHECK-NEXT: je

define i32 @check_flag(i32 %flags, ...) nounwind {
entry:
  %and = and i32 %flags, 512
  %tobool = icmp eq i32 %and, 0
  br i1 %tobool, label %if.end, label %if.then

if.then:
  br label %if.end

if.end:
  %hasflag = phi i32 [ 1, %if.then ], [ 0, %entry ]
  ret i32 %hasflag
}