File: shift-i256.ll

package info (click to toggle)
llvm-toolchain-9 1%3A9.0.1-16
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 882,436 kB
  • sloc: cpp: 4,167,636; ansic: 714,256; asm: 457,610; python: 155,927; objc: 65,094; sh: 42,856; lisp: 26,908; perl: 7,786; pascal: 7,722; makefile: 6,881; ml: 5,581; awk: 3,648; cs: 2,027; xml: 888; javascript: 381; ruby: 156
file content (21 lines) | stat: -rw-r--r-- 632 bytes parent folder | download | duplicates (10) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
 
; RUN: llc < %s -mtriple=i686--        | FileCheck %s
; RUN: llc < %s -mtriple=x86_64-- -O0 | FileCheck %s -check-prefix=CHECK-X64
; RUN: llc < %s -mtriple=x86_64-- -O2 | FileCheck %s -check-prefix=CHECK-X64

; CHECK-LABEL: shift1
define void @shift1(i256 %x, i256 %a, i256* nocapture %r) nounwind readnone {
entry:
	%0 = ashr i256 %x, %a
	store i256 %0, i256* %r
        ret void
}

; CHECK-LABEL: shift2
define i256 @shift2(i256 %c) nounwind
{
  %b = shl i256 1, %c  ; %c must not be a constant
  ; Special case when %c is 0:
  ; CHECK-X64: testb [[REG:%(bpl|r[0-9]+b)]], {{%(bpl|r[0-9]+b)}}
  ; CHECK-X64: cmoveq
  ret i256 %b
}