File: pr35399.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 (22 lines) | stat: -rw-r--r-- 661 bytes parent folder | download | duplicates (14)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mtriple=x86_64-unknown -mattr=lzcnt | FileCheck %s

; Make sure we emit opoosite setcc instructions.
define i64 @pr35399(i64, i8*, i8*) {
; CHECK-LABEL: pr35399:
; CHECK:       # %bb.0:
; CHECK-NEXT:    lzcntq %rdi, %rax
; CHECK-NEXT:    setae (%rsi)
; CHECK-NEXT:    setb (%rdx)
; CHECK-NEXT:    retq
  %4 = tail call i64 @llvm.ctlz.i64(i64 %0, i1 false)
  %5 = icmp ne i64 %0, 0
  %6 = zext i1 %5 to i8
  store i8 %6, i8* %1, align 1
  %7 = xor i1 %5, true
  %8 = zext i1 %7 to i8
  store i8 %8, i8* %2, align 1
  ret i64 %4
}

declare i64 @llvm.ctlz.i64(i64, i1)