File: 2010-11-09-CountLeading.ll

package info (click to toggle)
llvm-toolchain-20 1%3A20.1.6-1~exp1
  • links: PTS, VCS
  • area: main
  • in suites: experimental
  • size: 2,111,304 kB
  • sloc: cpp: 7,438,677; ansic: 1,393,822; asm: 1,012,926; python: 241,650; f90: 86,635; objc: 75,479; lisp: 42,144; pascal: 17,286; sh: 10,027; ml: 5,082; perl: 4,730; awk: 3,523; makefile: 3,349; javascript: 2,251; xml: 892; fortran: 672
file content (33 lines) | stat: -rw-r--r-- 732 bytes parent folder | download | duplicates (6) 
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
26
27
28
29
30
31
32
33
 
; RUN: llc -mtriple=mips < %s | FileCheck %s

; CHECK: clz $2, $4
define i32 @t1(i32 %X) nounwind readnone {
entry:
  %tmp1 = tail call i32 @llvm.ctlz.i32(i32 %X, i1 true)
  ret i32 %tmp1
}

declare i32 @llvm.ctlz.i32(i32, i1) nounwind readnone

; CHECK: clz $2, $4
define i32 @t2(i32 %X) nounwind readnone {
entry:
  %tmp1 = tail call i32 @llvm.ctlz.i32(i32 %X, i1 true)
  ret i32 %tmp1
}

; CHECK: clo $2, $4
define i32 @t3(i32 %X) nounwind readnone {
entry:
  %neg = xor i32 %X, -1
  %tmp1 = tail call i32 @llvm.ctlz.i32(i32 %neg, i1 true)
  ret i32 %tmp1
}

; CHECK: clo $2, $4
define i32 @t4(i32 %X) nounwind readnone {
entry:
  %neg = xor i32 %X, -1
  %tmp1 = tail call i32 @llvm.ctlz.i32(i32 %neg, i1 true)
  ret i32 %tmp1
}