File: rbit.ll

package info (click to toggle)
llvm-toolchain-14 1%3A14.0.6-12
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,496,180 kB
  • sloc: cpp: 5,593,972; ansic: 986,872; asm: 585,869; python: 184,223; objc: 72,530; lisp: 31,119; f90: 27,793; javascript: 9,780; pascal: 9,762; sh: 9,482; perl: 7,468; ml: 5,432; awk: 3,523; makefile: 2,538; xml: 953; cs: 573; fortran: 567
file content (32 lines) | stat: -rw-r--r-- 613 bytes parent folder | download | duplicates (27) 
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
 
; RUN: llc -mtriple=armv8-eabi %s -o - | FileCheck %s

; CHECK-LABEL: rbit
; CHECK: rbit r0, r0
define i32 @rbit(i32 %t) {
entry:
  %rbit = call i32 @llvm.arm.rbit(i32 %t)
  ret i32 %rbit
}

; CHECK-LABEL: rbit_constant
; CHECK: mov r0, #0
; CHECK-NOT: rbit
; CHECK: bx lr
define i32 @rbit_constant() {
entry:
  %rbit.i = call i32 @llvm.arm.rbit(i32 0)
  ret i32 %rbit.i
}

declare i32 @llvm.arm.rbit(i32)

declare i32 @llvm.bitreverse.i32(i32) readnone

; CHECK-LABEL: rbit_generic
; CHECK: rbit r0, r0
define i32 @rbit_generic(i32 %t) {
entry:
  %rbit = call i32 @llvm.bitreverse.i32(i32 %t)
  ret i32 %rbit
}