File: shift-factor.ll

package info (click to toggle)
llvm-2.7 2.7-6
  • links: PTS
  • area: main
  • in suites: squeeze
  • size: 59,992 kB
  • ctags: 49,499
  • sloc: cpp: 373,792; ansic: 16,885; sh: 12,614; asm: 6,809; ada: 3,083; ml: 2,942; python: 2,671; perl: 2,404; makefile: 1,691; pascal: 1,235; exp: 399; objc: 291; lisp: 184; csh: 117; xml: 38; f90: 36
file content (12 lines) | stat: -rw-r--r-- 355 bytes parent folder | download | duplicates (5)
1
2
3
4
5
6
7
8
9
10
11
12
; There should be exactly one shift and one add left.
; RUN: opt < %s -reassociate -instcombine -S > %t
; RUN: grep shl %t | count 1
; RUN: grep add %t | count 1

define i32 @test(i32 %X, i32 %Y) {
	%tmp.2 = shl i32 %X, 1		; <i32> [#uses=1]
	%tmp.6 = shl i32 %Y, 1		; <i32> [#uses=1]
	%tmp.4 = add i32 %tmp.6, %tmp.2		; <i32> [#uses=1]
	ret i32 %tmp.4
}