File: iabs.ll

package info (click to toggle)
llvm-toolchain-14 1%3A14.0.6-12
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,496,180 kB
  • sloc: cpp: 5,593,972; ansic: 986,872; asm: 585,869; python: 184,223; objc: 72,530; lisp: 31,119; f90: 27,793; javascript: 9,780; pascal: 9,762; sh: 9,482; perl: 7,468; ml: 5,432; awk: 3,523; makefile: 2,538; xml: 953; cs: 573; fortran: 567
file content (58 lines) | stat: -rw-r--r-- 1,539 bytes parent folder | download | duplicates (10)
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
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mtriple=thumbv6m-none-eabi | FileCheck %s

define i8 @test_i8(i8 %a) nounwind {
; CHECK-LABEL: test_i8:
; CHECK:       @ %bb.0:
; CHECK-NEXT:    sxtb r1, r0
; CHECK-NEXT:    asrs r1, r1, #7
; CHECK-NEXT:    adds r0, r0, r1
; CHECK-NEXT:    eors r0, r1
; CHECK-NEXT:    bx lr
  %tmp1neg = sub i8 0, %a
  %b = icmp sgt i8 %a, -1
  %abs = select i1 %b, i8 %a, i8 %tmp1neg
  ret i8 %abs
}

define i16 @test_i16(i16 %a) nounwind {
; CHECK-LABEL: test_i16:
; CHECK:       @ %bb.0:
; CHECK-NEXT:    sxth r1, r0
; CHECK-NEXT:    asrs r1, r1, #15
; CHECK-NEXT:    adds r0, r0, r1
; CHECK-NEXT:    eors r0, r1
; CHECK-NEXT:    bx lr
  %tmp1neg = sub i16 0, %a
  %b = icmp sgt i16 %a, -1
  %abs = select i1 %b, i16 %a, i16 %tmp1neg
  ret i16 %abs
}

define i32 @test_i32(i32 %a) nounwind {
; CHECK-LABEL: test_i32:
; CHECK:       @ %bb.0:
; CHECK-NEXT:    asrs r1, r0, #31
; CHECK-NEXT:    adds r0, r0, r1
; CHECK-NEXT:    eors r0, r1
; CHECK-NEXT:    bx lr
  %tmp1neg = sub i32 0, %a
  %b = icmp sgt i32 %a, -1
  %abs = select i1 %b, i32 %a, i32 %tmp1neg
  ret i32 %abs
}

define i64 @test_i64(i64 %a) nounwind {
; CHECK-LABEL: test_i64:
; CHECK:       @ %bb.0:
; CHECK-NEXT:    asrs r2, r1, #31
; CHECK-NEXT:    adds r0, r0, r2
; CHECK-NEXT:    adcs r1, r2
; CHECK-NEXT:    eors r0, r2
; CHECK-NEXT:    eors r1, r2
; CHECK-NEXT:    bx lr
  %tmp1neg = sub i64 0, %a
  %b = icmp sgt i64 %a, -1
  %abs = select i1 %b, i64 %a, i64 %tmp1neg
  ret i64 %abs
}