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
|
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mtriple=i686-unknown | FileCheck %s --check-prefix=X32
; RUN: llc < %s -mtriple=x86_64-unknown | FileCheck %s --check-prefix=X64
; Use movzbl to avoid partial-register updates.
define i32 @foo(i32 %p, i8 zeroext %x) nounwind {
; X32-LABEL: foo:
; X32: # %bb.0:
; X32-NEXT: movzbl {{[0-9]+}}(%esp), %eax
; X32-NEXT: # kill: %eax<def> %eax<kill> %ax<def>
; X32-NEXT: divb {{[0-9]+}}(%esp)
; X32-NEXT: movzbl %al, %eax
; X32-NEXT: andl $1, %eax
; X32-NEXT: retl
;
; X64-LABEL: foo:
; X64: # %bb.0:
; X64-NEXT: movzbl %dil, %eax
; X64-NEXT: # kill: %eax<def> %eax<kill> %ax<def>
; X64-NEXT: divb %sil
; X64-NEXT: movzbl %al, %eax
; X64-NEXT: andl $1, %eax
; X64-NEXT: retq
%q = trunc i32 %p to i8
%r = udiv i8 %q, %x
%s = zext i8 %r to i32
%t = and i32 %s, 1
ret i32 %t
}
define i32 @bar(i32 %p, i16 zeroext %x) nounwind {
; X32-LABEL: bar:
; X32: # %bb.0:
; X32-NEXT: movzwl {{[0-9]+}}(%esp), %eax
; X32-NEXT: xorl %edx, %edx
; X32-NEXT: divw {{[0-9]+}}(%esp)
; X32-NEXT: # kill: %ax<def> %ax<kill> %eax<def>
; X32-NEXT: andl $1, %eax
; X32-NEXT: retl
;
; X64-LABEL: bar:
; X64: # %bb.0:
; X64-NEXT: xorl %edx, %edx
; X64-NEXT: movl %edi, %eax
; X64-NEXT: divw %si
; X64-NEXT: # kill: %ax<def> %ax<kill> %eax<def>
; X64-NEXT: andl $1, %eax
; X64-NEXT: retq
%q = trunc i32 %p to i16
%r = udiv i16 %q, %x
%s = zext i16 %r to i32
%t = and i32 %s, 1
ret i32 %t
}
|
