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
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
|
; RUN: llc -march=amdgcn < %s | FileCheck -check-prefix=SI -check-prefix=FUNC %s
; RUN: llc -march=amdgcn -mcpu=tonga -mattr=-flat-for-global < %s | FileCheck -check-prefix=SI -check-prefix=FUNC %s
; RUN: llc -march=r600 -mcpu=redwood < %s | FileCheck -check-prefix=EG -check-prefix=FUNC %s
; FUNC-LABEL: {{^}}test_a:
; EG-NOT: CND
; EG: SET{{[NEQGTL]+}}_DX10
define amdgpu_kernel void @test_a(i32 addrspace(1)* %out, float %in) {
entry:
%0 = fcmp olt float %in, 0.000000e+00
%1 = select i1 %0, float 1.000000e+00, float 0.000000e+00
%2 = fneg float %1
%3 = fptosi float %2 to i32
%4 = bitcast i32 %3 to float
%5 = bitcast float %4 to i32
%6 = icmp ne i32 %5, 0
br i1 %6, label %IF, label %ENDIF
IF:
%7 = getelementptr i32, i32 addrspace(1)* %out, i32 1
store i32 0, i32 addrspace(1)* %7
br label %ENDIF
ENDIF:
store i32 0, i32 addrspace(1)* %out
ret void
}
; Same as test_a, but the branch labels are swapped to produce the inverse cc
; for the icmp instruction
; EG-LABEL: {{^}}test_b:
; EG: SET{{[GTEQN]+}}_DX10
; EG-NEXT: PRED_
; EG-NEXT: ALU clause starting
define amdgpu_kernel void @test_b(i32 addrspace(1)* %out, float %in) {
entry:
%0 = fcmp olt float %in, 0.0
%1 = select i1 %0, float 1.000000e+00, float 0.000000e+00
%2 = fneg float %1
%3 = fptosi float %2 to i32
%4 = bitcast i32 %3 to float
%5 = bitcast float %4 to i32
%6 = icmp ne i32 %5, 0
br i1 %6, label %ENDIF, label %IF
IF:
%7 = getelementptr i32, i32 addrspace(1)* %out, i32 1
store i32 0, i32 addrspace(1)* %7
br label %ENDIF
ENDIF:
store i32 0, i32 addrspace(1)* %out
ret void
}
; Test a CND*_INT instruction with float true/false values
; EG-LABEL: {{^}}test_c:
; EG: CND{{[GTE]+}}_INT
define amdgpu_kernel void @test_c(float addrspace(1)* %out, i32 %in) {
entry:
%0 = icmp sgt i32 %in, 0
%1 = select i1 %0, float 2.0, float 3.0
store float %1, float addrspace(1)* %out
ret void
}
; FUNC-LABEL: {{^}}selectcc_bool:
; SI: s_cmp_lg_u32
; SI: v_cndmask_b32_e64
; SI-NOT: cmp
; SI-NOT: cndmask
define amdgpu_kernel void @selectcc_bool(i32 addrspace(1)* %out, i32 %a, i32 %b) nounwind {
%icmp0 = icmp ne i32 %a, %b
%ext = select i1 %icmp0, i32 -1, i32 0
store i32 %ext, i32 addrspace(1)* %out
ret void
}
|
