File: rlwimi-and-or-bits.ll

package info (click to toggle)
llvm-toolchain-11 1%3A11.0.1-2
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 995,808 kB
  • sloc: cpp: 4,767,656; ansic: 760,916; asm: 477,436; python: 170,940; objc: 69,804; lisp: 29,914; sh: 23,855; f90: 18,173; pascal: 7,551; perl: 7,471; ml: 5,603; awk: 3,489; makefile: 2,573; xml: 915; cs: 573; fortran: 503; javascript: 452
file content (27 lines) | stat: -rw-r--r-- 606 bytes parent folder | download | duplicates (16) 
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
 
; RUN: llc -verify-machineinstrs < %s | FileCheck %s
target datalayout = "E-m:e-i64:64-n32:64"
target triple = "powerpc64-unknown-linux-gnu"

@m = external global i32, align 4

; Function Attrs: nounwind
define signext i32 @main() #0 {
entry:

; CHECK-LABEL: @main
; CHECK-NOT: rlwimi
; CHECK: andi

  %0 = load i32, i32* @m, align 4
  %or = or i32 %0, 250
  store i32 %or, i32* @m, align 4
  %and = and i32 %or, 249
  %sub.i = sub i32 %and, 0
  %sext = shl i32 %sub.i, 24
  %conv = ashr exact i32 %sext, 24
  ret i32 %conv
}

attributes #0 = { nounwind "target-cpu"="pwr7" }
attributes #1 = { nounwind }