File: 2010-09-02-Trunc.ll

package info (click to toggle)
llvm-toolchain-7 1%3A7.0.1-8~deb9u3
  • links: PTS, VCS
  • area: main
  • in suites: stretch
  • size: 733,456 kB
  • sloc: cpp: 3,776,651; ansic: 633,271; asm: 350,301; python: 142,716; objc: 107,612; sh: 22,626; lisp: 11,056; perl: 7,999; pascal: 6,742; ml: 5,537; awk: 3,536; makefile: 2,557; cs: 2,027; xml: 841; ruby: 156
file content (25 lines) | stat: -rw-r--r-- 459 bytes parent folder | download | duplicates (21) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
 
; RUN: opt -S < %s -correlated-propagation | FileCheck %s

; CHECK-LABEL: @test(
define i16 @test(i32 %a, i1 %b) {
entry:
  %c = icmp eq i32 %a, 0
  br i1 %c, label %left, label %right

right:
  %d = trunc i32 %a to i1
  br label %merge

left:
  br i1 %b, label %merge, label %other

other:
  ret i16 23

merge:
  %f = phi i1 [%b, %left], [%d, %right]
; CHECK: select i1 %f, i16 1, i16 0 
  %h = select i1 %f, i16 1, i16 0 
; CHECK: ret i16 %h
  ret i16 %h
}