File: shifttest.ll

package info (click to toggle)
llvm-toolchain-6.0 1%3A6.0.1-10
  • links: PTS, VCS
  • area: main
  • in suites: buster
  • size: 598,080 kB
  • sloc: cpp: 3,046,253; ansic: 595,057; asm: 271,965; python: 128,926; objc: 106,554; sh: 21,906; lisp: 10,191; pascal: 6,094; ml: 5,544; perl: 5,265; makefile: 2,227; cs: 2,027; xml: 686; php: 212; csh: 117
file content (12 lines) | stat: -rw-r--r-- 316 bytes parent folder | download | duplicates (24) 
1
2
3
4
5
6
7
8
9
10
11
12
 
; With shl->mul reassociation, we can see that this is (shl A, 9) * A
;
; RUN: opt < %s -reassociate -instcombine -S |\
; RUN:    grep "shl .*, 9"

define i32 @test(i32 %A, i32 %B) {
	%X = shl i32 %A, 5		; <i32> [#uses=1]
	%Y = shl i32 %A, 4		; <i32> [#uses=1]
	%Z = mul i32 %Y, %X		; <i32> [#uses=1]
	ret i32 %Z
}