File: sdiv-exact.ll

package info (click to toggle)
llvm-toolchain-3.8 1%3A3.8.1-24
  • links: PTS, VCS
  • area: main
  • in suites: stretch
  • size: 379,280 kB
  • ctags: 388,501
  • sloc: cpp: 2,309,705; ansic: 477,070; objc: 100,918; asm: 97,974; python: 95,911; sh: 18,634; makefile: 7,294; perl: 5,584; ml: 5,460; pascal: 4,661; lisp: 2,548; xml: 686; cs: 350; php: 212; csh: 117
file content (29 lines) | stat: -rw-r--r-- 614 bytes parent folder | download | duplicates (6)
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
; RUN: llc -march=x86 -mattr=+sse2 < %s | FileCheck %s

define i32 @test1(i32 %x) {
  %div = sdiv exact i32 %x, 25
  ret i32 %div
; CHECK-LABEL: test1:
; CHECK: imull	$-1030792151, 4(%esp)
; CHECK-NEXT: ret
}

define i32 @test2(i32 %x) {
  %div = sdiv exact i32 %x, 24
  ret i32 %div
; CHECK-LABEL: test2:
; CHECK: sarl	$3
; CHECK-NEXT: imull	$-1431655765
; CHECK-NEXT: ret
}

define <4 x i32> @test3(<4 x i32> %x) {
  %div = sdiv exact <4 x i32> %x, <i32 24, i32 24, i32 24, i32 24>
  ret <4 x i32> %div
; CHECK-LABEL: test3:
; CHECK: psrad	$3,
; CHECK: pmuludq
; CHECK: pmuludq
; CHECK-NOT: psrad
; CHECK: ret
}