File: combine-adc.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 (70 lines) | stat: -rw-r--r-- 2,147 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
59
60
61
62
63
64
65
66
67
68
69
70
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mtriple=i686-unknown-unknown | FileCheck %s --check-prefixes=X86
; RUN: llc < %s -mtriple=x86_64-unknown-unknown | FileCheck %s --check-prefixes=X64

define i32 @PR40483_add1(i32*, i32) nounwind {
; X86-LABEL: PR40483_add1:
; X86:       # %bb.0:
; X86-NEXT:    movl {{[0-9]+}}(%esp), %ecx
; X86-NEXT:    movl (%ecx), %eax
; X86-NEXT:    addl {{[0-9]+}}(%esp), %eax
; X86-NEXT:    movl %eax, (%ecx)
; X86-NEXT:    jae .LBB0_2
; X86-NEXT:  # %bb.1:
; X86-NEXT:    xorl %eax, %eax
; X86-NEXT:  .LBB0_2:
; X86-NEXT:    retl
;
; X64-LABEL: PR40483_add1:
; X64:       # %bb.0:
; X64-NEXT:    xorl %eax, %eax
; X64-NEXT:    addl (%rdi), %esi
; X64-NEXT:    movl %esi, (%rdi)
; X64-NEXT:    cmovael %esi, %eax
; X64-NEXT:    retq
  %3 = load i32, i32* %0, align 8
  %4 = tail call { i8, i32 } @llvm.x86.addcarry.32(i8 0, i32 %3, i32 %1)
  %5 = extractvalue { i8, i32 } %4, 1
  store i32 %5, i32* %0, align 8
  %6 = extractvalue { i8, i32 } %4, 0
  %7 = icmp eq i8 %6, 0
  %8 = add i32 %1, %3
  %9 = or i32 %5, %8
  %10 = select i1 %7, i32 %9, i32 0
  ret i32 %10
}

define i32 @PR40483_add2(i32*, i32) nounwind {
; X86-LABEL: PR40483_add2:
; X86:       # %bb.0:
; X86-NEXT:    movl {{[0-9]+}}(%esp), %edx
; X86-NEXT:    movl (%edx), %ecx
; X86-NEXT:    xorl %eax, %eax
; X86-NEXT:    addl {{[0-9]+}}(%esp), %ecx
; X86-NEXT:    movl %ecx, (%edx)
; X86-NEXT:    jae .LBB1_2
; X86-NEXT:  # %bb.1:
; X86-NEXT:    movl %ecx, %eax
; X86-NEXT:  .LBB1_2:
; X86-NEXT:    retl
;
; X64-LABEL: PR40483_add2:
; X64:       # %bb.0:
; X64-NEXT:    xorl %eax, %eax
; X64-NEXT:    addl (%rdi), %esi
; X64-NEXT:    movl %esi, (%rdi)
; X64-NEXT:    cmovbl %esi, %eax
; X64-NEXT:    retq
  %3 = load i32, i32* %0, align 8
  %4 = tail call { i8, i32 } @llvm.x86.addcarry.32(i8 0, i32 %3, i32 %1)
  %5 = extractvalue { i8, i32 } %4, 1
  store i32 %5, i32* %0, align 8
  %6 = extractvalue { i8, i32 } %4, 0
  %7 = icmp eq i8 %6, 0
  %8 = add i32 %3, %1
  %9 = or i32 %5, %8
  %10 = select i1 %7, i32 0, i32 %9
  ret i32 %10
}

declare { i8, i32 } @llvm.x86.addcarry.32(i8, i32, i32)