File: sar_fold.ll

package info (click to toggle)
llvm-toolchain-3.9 1%3A3.9.1-8
  • links: PTS, VCS
  • area: main
  • in suites: stretch
  • size: 441,060 kB
  • ctags: 428,777
  • sloc: cpp: 2,546,577; ansic: 538,318; asm: 119,677; objc: 103,316; python: 102,148; sh: 27,847; pascal: 5,626; ml: 5,510; perl: 5,293; lisp: 4,801; makefile: 2,177; xml: 686; cs: 362; php: 212; csh: 117
file content (37 lines) | stat: -rw-r--r-- 861 bytes parent folder | download | duplicates (5)
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
33
34
35
36
37
; RUN: llc < %s -mtriple=i686-unknown-unknown | FileCheck %s

define i32 @shl16sar15(i32 %a) #0 {
; CHECK-LABEL: shl16sar15:
; CHECK:       # BB#0:
; CHECK-NEXT:    movswl {{[0-9]+}}(%esp), %eax
  %1 = shl i32 %a, 16
  %2 = ashr exact i32 %1, 15
  ret i32 %2
}

define i32 @shl16sar17(i32 %a) #0 {
; CHECK-LABEL: shl16sar17:
; CHECK:       # BB#0:
; CHECK-NEXT:    movswl {{[0-9]+}}(%esp), %eax
  %1 = shl i32 %a, 16
  %2 = ashr exact i32 %1, 17
  ret i32 %2
}

define i32 @shl24sar23(i32 %a) #0 {
; CHECK-LABEL: shl24sar23:
; CHECK:       # BB#0:
; CHECK-NEXT:    movsbl {{[0-9]+}}(%esp), %eax
  %1 = shl i32 %a, 24
  %2 = ashr exact i32 %1, 23
  ret i32 %2
}

define i32 @shl24sar25(i32 %a) #0 {
; CHECK-LABEL: shl24sar25:
; CHECK:       # BB#0:
; CHECK-NEXT:    movsbl {{[0-9]+}}(%esp), %eax
  %1 = shl i32 %a, 24
  %2 = ashr exact i32 %1, 25
  ret i32 %2
}