File: 2010-07-29-SetccSimplify.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 (14 lines) | stat: -rw-r--r-- 465 bytes parent folder | download | duplicates (36) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
 
; RUN: llc < %s -mtriple=x86_64-apple-darwin | FileCheck %s

define i32 @extend2bit_v2(i32 %val) {
entry:
  %0 = trunc i32 %val to i2                       ; <i2> [#uses=1]
  %1 = sext i2 %0 to i32                          ; <i32> [#uses=1]
  %2 = icmp eq i32 %1, 3                          ; <i1> [#uses=1]
  %3 = zext i1 %2 to i32                          ; <i32> [#uses=1]
  ret i32 %3
}

; CHECK-LABEL: extend2bit_v2:
; CHECK: xorl	%eax, %eax
; CHECK-NEXT: ret