File: zext-divrem.ll

package info (click to toggle)
llvm-toolchain-11 1%3A11.0.1-2
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 995,808 kB
  • sloc: cpp: 4,767,656; ansic: 760,916; asm: 477,436; python: 170,940; objc: 69,804; lisp: 29,914; sh: 23,855; f90: 18,173; pascal: 7,551; perl: 7,471; ml: 5,603; awk: 3,489; makefile: 2,573; xml: 915; cs: 573; fortran: 503; javascript: 452
file content (42 lines) | stat: -rw-r--r-- 1,169 bytes parent folder | download | duplicates (7)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
; RUN: opt -analyze -scalar-evolution -S < %s | FileCheck %s

define i64 @test1(i32 %a, i32 %b) {
; CHECK-LABEL: @test1
  %div = udiv i32 %a, %b
  %zext = zext i32 %div to i64
; CHECK: %zext
; CHECK-NEXT: -->  ((zext i32 %a to i64) /u (zext i32 %b to i64))
  ret i64 %zext
}

define i64 @test2(i32 %a, i32 %b) {
; CHECK-LABEL: @test2
  %rem = urem i32 %a, %b
  %zext = zext i32 %rem to i64
; CHECK: %zext
; CHECK-NEXT: -->  ((zext i32 %a to i64) + (-1 * (zext i32 %b to i64) * ((zext i32 %a to i64) /u (zext i32 %b to i64))))
  ret i64 %zext
}

define i64 @test3(i32 %a, i32 %b) {
; CHECK-LABEL: @test3
  %div = udiv i32 %a, %b
  %mul = mul i32 %div, %b
  %sub = sub i32 %a, %mul
  %zext = zext i32 %sub to i64
; CHECK: %zext
; CHECK-NEXT: -->  ((zext i32 %a to i64) + (-1 * (zext i32 %b to i64) * ((zext i32 %a to i64) /u (zext i32 %b to i64))))
  ret i64 %zext
}

define i64 @test4(i32 %t) {
; CHECK-LABEL: @test4
  %a = udiv i32 %t, 2
  %div = udiv i32 %t, 112
  %mul = mul i32 %div, 56
  %sub = sub i32 %a, %mul
  %zext = zext i32 %sub to i64
; CHECK: %zext
; CHECK-NEXT: -->  ((-56 * ((zext i32 %t to i64) /u 112)) + ((zext i32 %t to i64) /u 2))
  ret i64 %zext
}