File: apint-div1.ll

package info (click to toggle)
llvm-toolchain-17 1%3A17.0.6-22
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 1,799,624 kB
  • sloc: cpp: 6,428,607; ansic: 1,383,196; asm: 793,408; python: 223,504; objc: 75,364; f90: 60,502; lisp: 33,869; pascal: 15,282; sh: 9,684; perl: 7,453; ml: 4,937; awk: 3,523; makefile: 2,889; javascript: 2,149; xml: 888; fortran: 619; cs: 573
file content (22 lines) | stat: -rw-r--r-- 500 bytes parent folder | download | duplicates (13) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
 
; This test makes sure that div instructions are properly eliminated.
; This test is for Integer BitWidth < 64 && BitWidth % 2 != 0.
;
; RUN: opt < %s -passes=instcombine -S | not grep div


define i33 @test1(i33 %X) {
    %Y = udiv i33 %X, 4096
    ret i33 %Y
}

define i49 @test2(i49 %X) {
    %tmp.0 = shl i49 4096, 17
    %Y = udiv i49 %X, %tmp.0
    ret i49 %Y
}

define i59 @test3(i59 %X, i1 %C) {
        %V = select i1 %C, i59 1024, i59 4096
        %R = udiv i59 %X, %V
        ret i59 %R
}