File: apint-div1.ll

package info (click to toggle)
llvm-toolchain-9 1%3A9.0.1-16.1
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 882,388 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 (22 lines) | stat: -rw-r--r-- 493 bytes parent folder | download | duplicates (28)
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 -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
}