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gerrit-public.fairphone.software / toolchain / llvm-project / 153b40843310a00175105908005e3197b837fbc2 / . / llvm / test / CodeGen / X86 / known-bits.ll
blob: db15af70236238521896fd19501318c4bd02c825 [file] [log] [blame]
Simon Pilgrim153b4082016-09-09 13:31:52 +0000[diff] [blame^]1; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
2; RUN: llc < %s -mtriple=i686-unknown-unknown -mattr=+avx | FileCheck %s --check-prefix=X32
3; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx | FileCheck %s --check-prefix=X64
4
5define void @knownbits_zext_in_reg(i8*) nounwind {
6; X32-LABEL: knownbits_zext_in_reg:
7; X32: # BB#0: # %BB
8; X32-NEXT: pushl %ebp
9; X32-NEXT: pushl %ebx
10; X32-NEXT: pushl %edi
11; X32-NEXT: pushl %esi
12; X32-NEXT: movl {{[0-9]+}}(%esp), %eax
13; X32-NEXT: movzbl (%eax), %eax
14; X32-NEXT: imull $101, %eax, %eax
15; X32-NEXT: andl $16384, %eax # imm = 0x4000
16; X32-NEXT: shrl $14, %eax
17; X32-NEXT: movzbl %al, %eax
18; X32-NEXT: vmovd %eax, %xmm0
19; X32-NEXT: vpshufd {{.*#+}} xmm0 = xmm0[1,0,1,1]
20; X32-NEXT: vpand {{\.LCPI.*}}, %xmm0, %xmm0
21; X32-NEXT: vpextrd $1, %xmm0, %ebp
22; X32-NEXT: vmovd %xmm0, %esi
23; X32-NEXT: vpextrd $2, %xmm0, %edi
24; X32-NEXT: vpextrd $3, %xmm0, %ebx
25; X32-NEXT: xorl %ecx, %ecx
26; X32-NEXT: .p2align 4, 0x90
27; X32-NEXT: .LBB0_1: # %CF
28; X32-NEXT: # =>This Loop Header: Depth=1
29; X32-NEXT: # Child Loop BB0_2 Depth 2
30; X32-NEXT: movl %ebp, %eax
31; X32-NEXT: cltd
32; X32-NEXT: idivl %ebp
33; X32-NEXT: movl %esi, %eax
34; X32-NEXT: cltd
35; X32-NEXT: idivl %esi
36; X32-NEXT: movl %edi, %eax
37; X32-NEXT: cltd
38; X32-NEXT: idivl %edi
39; X32-NEXT: movl %ebx, %eax
40; X32-NEXT: cltd
41; X32-NEXT: idivl %ebx
42; X32-NEXT: .p2align 4, 0x90
43; X32-NEXT: .LBB0_2: # %CF237
44; X32-NEXT: # Parent Loop BB0_1 Depth=1
45; X32-NEXT: # => This Inner Loop Header: Depth=2
46; X32-NEXT: testb %cl, %cl
47; X32-NEXT: jne .LBB0_2
48; X32-NEXT: jmp .LBB0_1
49;
50; X64-LABEL: knownbits_zext_in_reg:
51; X64: # BB#0: # %BB
52; X64-NEXT: movzbl (%rdi), %eax
53; X64-NEXT: imull $101, %eax, %eax
54; X64-NEXT: andl $16384, %eax # imm = 0x4000
55; X64-NEXT: shrl $14, %eax
56; X64-NEXT: movzbl %al, %eax
57; X64-NEXT: vmovd %eax, %xmm0
58; X64-NEXT: vpshufd {{.*#+}} xmm0 = xmm0[1,0,1,1]
59; X64-NEXT: vpand {{.*}}(%rip), %xmm0, %xmm0
60; X64-NEXT: vpextrd $1, %xmm0, %r8d
61; X64-NEXT: vmovd %xmm0, %r9d
62; X64-NEXT: vpextrd $2, %xmm0, %edi
63; X64-NEXT: vpextrd $3, %xmm0, %ecx
64; X64-NEXT: xorl %esi, %esi
65; X64-NEXT: .p2align 4, 0x90
66; X64-NEXT: .LBB0_1: # %CF
67; X64-NEXT: # =>This Loop Header: Depth=1
68; X64-NEXT: # Child Loop BB0_2 Depth 2
69; X64-NEXT: movl %r8d, %eax
70; X64-NEXT: cltd
71; X64-NEXT: idivl %r8d
72; X64-NEXT: movl %r9d, %eax
73; X64-NEXT: cltd
74; X64-NEXT: idivl %r9d
75; X64-NEXT: movl %edi, %eax
76; X64-NEXT: cltd
77; X64-NEXT: idivl %edi
78; X64-NEXT: movl %ecx, %eax
79; X64-NEXT: cltd
80; X64-NEXT: idivl %ecx
81; X64-NEXT: .p2align 4, 0x90
82; X64-NEXT: .LBB0_2: # %CF237
83; X64-NEXT: # Parent Loop BB0_1 Depth=1
84; X64-NEXT: # => This Inner Loop Header: Depth=2
85; X64-NEXT: testb %sil, %sil
86; X64-NEXT: jne .LBB0_2
87; X64-NEXT: jmp .LBB0_1
88BB:
89 %L5 = load i8, i8* %0
90 %Sl9 = select i1 true, i8 %L5, i8 undef
91 %B21 = udiv i8 %Sl9, -93
92 br label %CF
93
94CF: ; preds = %CF246, %BB
95 %I40 = insertelement <4 x i8> zeroinitializer, i8 %B21, i32 1
96 %B41 = srem <4 x i8> %I40, %I40
97 br label %CF237
98
99CF237: ; preds = %CF237, %CF
100 %Cmp73 = icmp ne i1 undef, undef
101 br i1 %Cmp73, label %CF237, label %CF246
102
103CF246: ; preds = %CF237
104 %Cmp117 = icmp ult <4 x i8> %B41, undef
105 %E156 = extractelement <4 x i1> %Cmp117, i32 2
106 br label %CF
107}