File: srl-mask.ll

package info (click to toggle)
swiftlang 6.0.3-2
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 2,519,992 kB
  • sloc: cpp: 9,107,863; ansic: 2,040,022; asm: 1,135,751; python: 296,500; objc: 82,456; f90: 60,502; lisp: 34,951; pascal: 19,946; sh: 18,133; perl: 7,482; ml: 4,937; javascript: 4,117; makefile: 3,840; awk: 3,535; xml: 914; fortran: 619; cs: 573; ruby: 573
file content (27 lines) | stat: -rw-r--r-- 705 bytes parent folder | download | duplicates (28) 
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 -mtriple=powerpc64-unknown-linux-gnu -mcpu=a2 | FileCheck %s
target datalayout = "E-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-f128:128:128-v128:128:128-n32:64"
target triple = "powerpc64-unknown-linux-gnu"

define i64 @foo(i64 %x) #0 {
entry:
; CHECK-LABEL: @foo
  %a = lshr i64 %x, 35
  %b = and i64 %a, 65535
; CHECK: rldicl 3, 3, 29, 48
  ret i64 %b
; CHECK: blr
}

; for AND with an immediate like (x & ~0xFFFF)
; we should use rldicl instruction
define i64 @bar(i64 %x) #0 {
entry:
; CHECK-LABEL: @bar
  %a = and i64 %x, 18446744073709486080
; CHECK: rldicr 3, 3, 0, 47
  ret i64 %a
; CHECK: blr
}

attributes #0 = { nounwind }