Mercurial > hg > Members > tobaru > cbc > CbC_llvm

comparison test/CodeGen/AMDGPU/sdiv.ll @ 95:afa8332a0e37

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
LLVM 3.8
author Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
date Tue, 13 Oct 2015 17:48:58 +0900
parents
children 1172e4bd9c6f
comparison
equal deleted inserted replaced
84:f3e34b893a5f 95:afa8332a0e37
1 ; RUN: llc -march=amdgcn -mcpu=SI < %s | FileCheck -check-prefix=SI -check-prefix=FUNC %s
2 ; RUN: llc -march=amdgcn -mcpu=tonga < %s | FileCheck -check-prefix=SI -check-prefix=FUNC %s
3 ; RUN: llc -march=r600 -mcpu=redwood < %s | FileCheck -check-prefix=EG -check-prefix=FUNC %s
4
5 ; The code generated by sdiv is long and complex and may frequently change.
6 ; The goal of this test is to make sure the ISel doesn't fail.
7 ;
8 ; This program was previously failing to compile when one of the selectcc
9 ; opcodes generated by the sdiv lowering was being legalized and optimized to:
10 ; selectcc Remainder -1, 0, -1, SETGT
11 ; This was fixed by adding an additional pattern in R600Instructions.td to
12 ; match this pattern with a CNDGE_INT.
13
14 ; FUNC-LABEL: {{^}}sdiv_i32:
15 ; EG: CF_END
16 define void @sdiv_i32(i32 addrspace(1)* %out, i32 addrspace(1)* %in) {
17 %den_ptr = getelementptr i32, i32 addrspace(1)* %in, i32 1
18 %num = load i32, i32 addrspace(1) * %in
19 %den = load i32, i32 addrspace(1) * %den_ptr
20 %result = sdiv i32 %num, %den
21 store i32 %result, i32 addrspace(1)* %out
22 ret void
23 }
24
25 ; FUNC-LABEL: {{^}}sdiv_i32_4:
26 define void @sdiv_i32_4(i32 addrspace(1)* %out, i32 addrspace(1)* %in) {
27 %num = load i32, i32 addrspace(1) * %in
28 %result = sdiv i32 %num, 4
29 store i32 %result, i32 addrspace(1)* %out
30 ret void
31 }
32
33 ; Multiply by a weird constant to make sure setIntDivIsCheap is
34 ; working.
35
36 ; FUNC-LABEL: {{^}}slow_sdiv_i32_3435:
37 ; SI: buffer_load_dword [[VAL:v[0-9]+]],
38 ; SI: v_mov_b32_e32 [[MAGIC:v[0-9]+]], 0x98a1930b
39 ; SI: v_mul_hi_i32 [[TMP:v[0-9]+]], [[MAGIC]], [[VAL]]
40 ; SI: v_add_i32
41 ; SI: v_lshrrev_b32
42 ; SI: v_ashrrev_i32
43 ; SI: v_add_i32
44 ; SI: buffer_store_dword
45 ; SI: s_endpgm
46 define void @slow_sdiv_i32_3435(i32 addrspace(1)* %out, i32 addrspace(1)* %in) {
47 %num = load i32, i32 addrspace(1) * %in
48 %result = sdiv i32 %num, 3435
49 store i32 %result, i32 addrspace(1)* %out
50 ret void
51 }
52
53 define void @sdiv_v2i32(<2 x i32> addrspace(1)* %out, <2 x i32> addrspace(1)* %in) {
54 %den_ptr = getelementptr <2 x i32>, <2 x i32> addrspace(1)* %in, i32 1
55 %num = load <2 x i32>, <2 x i32> addrspace(1) * %in
56 %den = load <2 x i32>, <2 x i32> addrspace(1) * %den_ptr
57 %result = sdiv <2 x i32> %num, %den
58 store <2 x i32> %result, <2 x i32> addrspace(1)* %out
59 ret void
60 }
61
62 define void @sdiv_v2i32_4(<2 x i32> addrspace(1)* %out, <2 x i32> addrspace(1)* %in) {
63 %num = load <2 x i32>, <2 x i32> addrspace(1) * %in
64 %result = sdiv <2 x i32> %num, <i32 4, i32 4>
65 store <2 x i32> %result, <2 x i32> addrspace(1)* %out
66 ret void
67 }
68
69 define void @sdiv_v4i32(<4 x i32> addrspace(1)* %out, <4 x i32> addrspace(1)* %in) {
70 %den_ptr = getelementptr <4 x i32>, <4 x i32> addrspace(1)* %in, i32 1
71 %num = load <4 x i32>, <4 x i32> addrspace(1) * %in
72 %den = load <4 x i32>, <4 x i32> addrspace(1) * %den_ptr
73 %result = sdiv <4 x i32> %num, %den
74 store <4 x i32> %result, <4 x i32> addrspace(1)* %out
75 ret void
76 }
77
78 define void @sdiv_v4i32_4(<4 x i32> addrspace(1)* %out, <4 x i32> addrspace(1)* %in) {
79 %num = load <4 x i32>, <4 x i32> addrspace(1) * %in
80 %result = sdiv <4 x i32> %num, <i32 4, i32 4, i32 4, i32 4>
81 store <4 x i32> %result, <4 x i32> addrspace(1)* %out
82 ret void
83 }
84
85 ; Tests for 64-bit divide bypass.
86 ; define void @test_get_quotient(i64 addrspace(1)* %out, i64 %a, i64 %b) nounwind {
87 ; %result = sdiv i64 %a, %b
88 ; store i64 %result, i64 addrspace(1)* %out, align 8
89 ; ret void
90 ; }
91
92 ; define void @test_get_remainder(i64 addrspace(1)* %out, i64 %a, i64 %b) nounwind {
93 ; %result = srem i64 %a, %b
94 ; store i64 %result, i64 addrspace(1)* %out, align 8
95 ; ret void
96 ; }
97
98 ; define void @test_get_quotient_and_remainder(i64 addrspace(1)* %out, i64 %a, i64 %b) nounwind {
99 ; %resultdiv = sdiv i64 %a, %b
100 ; %resultrem = srem i64 %a, %b
101 ; %result = add i64 %resultdiv, %resultrem
102 ; store i64 %result, i64 addrspace(1)* %out, align 8
103 ; ret void
104 ; }