File: rotate.ll

package info (click to toggle)
llvm-toolchain-4.0 1%3A4.0.1-10~deb9u2
  • links: PTS, VCS
  • area: main
  • in suites: stretch
  • size: 493,332 kB
  • sloc: cpp: 2,698,100; ansic: 552,773; asm: 128,821; python: 121,589; objc: 105,054; sh: 21,174; lisp: 6,758; ml: 5,532; perl: 5,311; pascal: 5,245; makefile: 2,083; cs: 1,868; xml: 686; php: 212; csh: 117
file content (14 lines) | stat: -rw-r--r-- 483 bytes parent folder | download | duplicates (19) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
 
; RUN: llc < %s -mtriple=aarch64--linux-gnueabihf | FileCheck %s

;; This used to cause a backend crash about not being able to
;; select ROTL. Make sure if generates the basic ushr/shl.
define <2 x i64> @testcase(<2 x i64>* %in) {
; CHECK-LABEL: testcase
; CHECK: ushr {{v[0-9]+}}.2d
; CHECK: shl  {{v[0-9]+}}.2d
  %1 = load <2 x i64>, <2 x i64>* %in
  %2 = lshr <2 x i64> %1, <i64 8, i64 8>
  %3 = shl <2 x i64> %1, <i64 56, i64 56>
  %4 = or <2 x i64> %2, %3
  ret <2 x i64> %4
}