xref: /aosp_15_r20/external/llvm/test/CodeGen/X86/rem.ll (revision 9880d6810fe72a1726cb53787c6711e909410d58)
1*9880d681SAndroid Build Coastguard Worker; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
2*9880d681SAndroid Build Coastguard Worker; RUN: llc < %s -mtriple=i386-unknown-unknown | FileCheck %s
3*9880d681SAndroid Build Coastguard Worker
4*9880d681SAndroid Build Coastguard Workerdefine i32 @test1(i32 %X) {
5*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: test1:
6*9880d681SAndroid Build Coastguard Worker; CHECK:       # BB#0:
7*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT:    movl {{[0-9]+}}(%esp), %ecx
8*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT:    movl $-2139062143, %edx # imm = 0x80808081
9*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT:    movl %ecx, %eax
10*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT:    imull %edx
11*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT:    addl %ecx, %edx
12*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT:    movl %edx, %eax
13*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT:    shrl $31, %eax
14*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT:    sarl $7, %edx
15*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT:    addl %eax, %edx
16*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT:    movl %edx, %eax
17*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT:    shll $8, %eax
18*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT:    subl %edx, %eax
19*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT:    subl %eax, %ecx
20*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT:    movl %ecx, %eax
21*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT:    retl
22*9880d681SAndroid Build Coastguard Worker;
23*9880d681SAndroid Build Coastguard Worker  %tmp1 = srem i32 %X, 255
24*9880d681SAndroid Build Coastguard Worker  ret i32 %tmp1
25*9880d681SAndroid Build Coastguard Worker}
26*9880d681SAndroid Build Coastguard Worker
27*9880d681SAndroid Build Coastguard Workerdefine i32 @test2(i32 %X) {
28*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: test2:
29*9880d681SAndroid Build Coastguard Worker; CHECK:       # BB#0:
30*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT:    movl {{[0-9]+}}(%esp), %eax
31*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT:    movl %eax, %ecx
32*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT:    sarl $31, %ecx
33*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT:    shrl $24, %ecx
34*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT:    addl %eax, %ecx
35*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT:    andl $-256, %ecx
36*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT:    subl %ecx, %eax
37*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT:    retl
38*9880d681SAndroid Build Coastguard Worker;
39*9880d681SAndroid Build Coastguard Worker  %tmp1 = srem i32 %X, 256
40*9880d681SAndroid Build Coastguard Worker  ret i32 %tmp1
41*9880d681SAndroid Build Coastguard Worker}
42*9880d681SAndroid Build Coastguard Worker
43*9880d681SAndroid Build Coastguard Workerdefine i32 @test3(i32 %X) {
44*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: test3:
45*9880d681SAndroid Build Coastguard Worker; CHECK:       # BB#0:
46*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT:    movl {{[0-9]+}}(%esp), %ecx
47*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT:    movl $-2139062143, %edx # imm = 0x80808081
48*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT:    movl %ecx, %eax
49*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT:    mull %edx
50*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT:    shrl $7, %edx
51*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT:    movl %edx, %eax
52*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT:    shll $8, %eax
53*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT:    subl %edx, %eax
54*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT:    subl %eax, %ecx
55*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT:    movl %ecx, %eax
56*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT:    retl
57*9880d681SAndroid Build Coastguard Worker;
58*9880d681SAndroid Build Coastguard Worker  %tmp1 = urem i32 %X, 255
59*9880d681SAndroid Build Coastguard Worker  ret i32 %tmp1
60*9880d681SAndroid Build Coastguard Worker}
61*9880d681SAndroid Build Coastguard Worker
62*9880d681SAndroid Build Coastguard Workerdefine i32 @test4(i32 %X) {
63*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: test4:
64*9880d681SAndroid Build Coastguard Worker; CHECK:       # BB#0:
65*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT:    movzbl {{[0-9]+}}(%esp), %eax
66*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT:    retl
67*9880d681SAndroid Build Coastguard Worker;
68*9880d681SAndroid Build Coastguard Worker  %tmp1 = urem i32 %X, 256
69*9880d681SAndroid Build Coastguard Worker  ret i32 %tmp1
70*9880d681SAndroid Build Coastguard Worker}
71*9880d681SAndroid Build Coastguard Worker
72*9880d681SAndroid Build Coastguard Workerdefine i32 @test5(i32 %X) nounwind readnone {
73*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: test5:
74*9880d681SAndroid Build Coastguard Worker; CHECK:       # BB#0: # %entry
75*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT:    movl $41, %eax
76*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT:    xorl %edx, %edx
77*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT:    idivl {{[0-9]+}}(%esp)
78*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT:    movl %edx, %eax
79*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT:    retl
80*9880d681SAndroid Build Coastguard Worker;
81*9880d681SAndroid Build Coastguard Workerentry:
82*9880d681SAndroid Build Coastguard Worker  %0 = srem i32 41, %X
83*9880d681SAndroid Build Coastguard Worker  ret i32 %0
84*9880d681SAndroid Build Coastguard Worker}
85