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gerrit-public.fairphone.software / toolchain / llvm-project / 11a4d6774b7c98c55f225a02f982a91c781768d1 / . / llvm / test / CodeGen / R600 / select64.ll
blob: 0245dae56b110cb189557fa099d132afff8561a1 [file] [log] [blame]
Tom Stellard49f8bfd2015-01-06 18:00:21 +0000[diff] [blame]1; RUN: llc < %s -march=amdgcn -mcpu=SI -verify-machineinstrs | FileCheck %s
Marek Olsak75170772015-01-27 17:27:15 +0000[diff] [blame]2; RUN: llc < %s -march=amdgcn -mcpu=tonga -verify-machineinstrs | FileCheck %s
Tom Stellard0ec134f2014-02-04 17:18:40 +0000[diff] [blame]3
Tom Stellard79243d92014-10-01 17:15:17 +0000[diff] [blame]4; CHECK-LABEL: {{^}}select0:
Tom Stellard7ea3d6d2014-03-31 14:01:55 +0000[diff] [blame]5; i64 select should be split into two i32 selects, and we shouldn't need
6; to use a shfit to extract the hi dword of the input.
Tom Stellard326d6ec2014-11-05 14:50:53 +0000[diff] [blame]7; CHECK-NOT: s_lshr_b64
8; CHECK: v_cndmask
9; CHECK: v_cndmask
Tom Stellard0ec134f2014-02-04 17:18:40 +0000[diff] [blame]10define void @select0(i64 addrspace(1)* %out, i32 %cond, i64 %in) {
11entry:
12 %0 = icmp ugt i32 %cond, 5
13 %1 = select i1 %0, i64 0, i64 %in
14 store i64 %1, i64 addrspace(1)* %out
15 ret void
16}
Matt Arsenault3332b702014-07-10 18:21:04 +0000[diff] [blame]17
Tom Stellard79243d92014-10-01 17:15:17 +0000[diff] [blame]18; CHECK-LABEL: {{^}}select_trunc_i64:
Tom Stellard326d6ec2014-11-05 14:50:53 +0000[diff] [blame]19; CHECK: v_cndmask_b32
20; CHECK-NOT: v_cndmask_b32
Matt Arsenault3332b702014-07-10 18:21:04 +0000[diff] [blame]21define void @select_trunc_i64(i32 addrspace(1)* %out, i32 %cond, i64 %in) nounwind {
22 %cmp = icmp ugt i32 %cond, 5
23 %sel = select i1 %cmp, i64 0, i64 %in
24 %trunc = trunc i64 %sel to i32
25 store i32 %trunc, i32 addrspace(1)* %out, align 4
26 ret void
27}
28
Tom Stellard79243d92014-10-01 17:15:17 +0000[diff] [blame]29; CHECK-LABEL: {{^}}select_trunc_i64_2:
Tom Stellard326d6ec2014-11-05 14:50:53 +0000[diff] [blame]30; CHECK: v_cndmask_b32
31; CHECK-NOT: v_cndmask_b32
Matt Arsenault3332b702014-07-10 18:21:04 +0000[diff] [blame]32define void @select_trunc_i64_2(i32 addrspace(1)* %out, i32 %cond, i64 %a, i64 %b) nounwind {
33 %cmp = icmp ugt i32 %cond, 5
34 %sel = select i1 %cmp, i64 %a, i64 %b
35 %trunc = trunc i64 %sel to i32
36 store i32 %trunc, i32 addrspace(1)* %out, align 4
37 ret void
38}
39
Tom Stellard79243d92014-10-01 17:15:17 +0000[diff] [blame]40; CHECK-LABEL: {{^}}v_select_trunc_i64_2:
Tom Stellard326d6ec2014-11-05 14:50:53 +0000[diff] [blame]41; CHECK: v_cndmask_b32
42; CHECK-NOT: v_cndmask_b32
Matt Arsenault3332b702014-07-10 18:21:04 +0000[diff] [blame]43define void @v_select_trunc_i64_2(i32 addrspace(1)* %out, i32 %cond, i64 addrspace(1)* %aptr, i64 addrspace(1)* %bptr) nounwind {
44 %cmp = icmp ugt i32 %cond, 5
45 %a = load i64 addrspace(1)* %aptr, align 8
46 %b = load i64 addrspace(1)* %bptr, align 8
47 %sel = select i1 %cmp, i64 %a, i64 %b
48 %trunc = trunc i64 %sel to i32
49 store i32 %trunc, i32 addrspace(1)* %out, align 4
50 ret void
51}
Matt Arsenault11a4d672015-02-13 19:05:03 +0000[diff] [blame^]52
53; CHECK-LABEL: {{^}}v_select_i64_split_imm:
54; CHECK: s_mov_b32 [[SHI:s[0-9]+]], 63
55; CHECK: s_mov_b32 [[SLO:s[0-9]+]], 0
56; CHECK-DAG: v_mov_b32_e32 [[VHI:v[0-9]+]], [[SHI]]
57; CHECK-DAG: v_mov_b32_e32 [[VLO:v[0-9]+]], [[SLO]]
58; CHECK-DAG: v_cndmask_b32_e64 {{v[0-9]+}}, [[VLO]], {{v[0-9]+}}
59; CHECK-DAG: v_cndmask_b32_e64 {{v[0-9]+}}, [[VHI]], {{v[0-9]+}}
60; CHECK: s_endpgm
61define void @v_select_i64_split_imm(i64 addrspace(1)* %out, i32 %cond, i64 addrspace(1)* %aptr, i64 addrspace(1)* %bptr) nounwind {
62 %cmp = icmp ugt i32 %cond, 5
63 %a = load i64 addrspace(1)* %aptr, align 8
64 %b = load i64 addrspace(1)* %bptr, align 8
65 %sel = select i1 %cmp, i64 %a, i64 270582939648 ; 63 << 32
66 store i64 %sel, i64 addrspace(1)* %out, align 8
67 ret void
68}