File: zext-divrem.ll

package info (click to toggle)
llvm-toolchain-15 1%3A15.0.6-4
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,554,644 kB
  • sloc: cpp: 5,922,452; ansic: 1,012,136; asm: 674,362; python: 191,568; objc: 73,855; f90: 42,327; lisp: 31,913; pascal: 11,973; javascript: 10,144; sh: 9,421; perl: 7,447; ml: 5,527; awk: 3,523; makefile: 2,520; xml: 885; cs: 573; fortran: 567
file content (42 lines) | stat: -rw-r--r-- 1,202 bytes parent folder | download | duplicates (16)
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 -disable-output "-passes=print<scalar-evolution>" -S < %s 2>&1 | 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))<nsw> + ((zext i32 %t to i64) /u 2))
  ret i64 %zext
}