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
|
; RUN: llc -march=amdgcn -verify-machineinstrs < %s | FileCheck -check-prefix=GCN %s
; RUN: not llc -march=amdgcn -mcpu=fiji -verify-machineinstrs < %s 2>&1 | FileCheck -check-prefix=ERROR %s
; ERROR: error: <unknown>:0:0: in function rcp_legacy_f32 void (ptr addrspace(1), float): intrinsic not supported on subtarget
declare float @llvm.amdgcn.rcp.legacy(float) #0
; GCN-LABEL: {{^}}rcp_legacy_f32:
; GCN: v_rcp_legacy_f32_e32 {{v[0-9]+}}, {{s[0-9]+}}
define amdgpu_kernel void @rcp_legacy_f32(ptr addrspace(1) %out, float %src) #1 {
%rcp = call float @llvm.amdgcn.rcp.legacy(float %src) #0
store float %rcp, ptr addrspace(1) %out, align 4
ret void
}
; TODO: Really these should be constant folded
; GCN-LABEL: {{^}}rcp_legacy_f32_constant_4.0
; GCN: v_rcp_legacy_f32_e32 {{v[0-9]+}}, 4.0
define amdgpu_kernel void @rcp_legacy_f32_constant_4.0(ptr addrspace(1) %out) #1 {
%rcp = call float @llvm.amdgcn.rcp.legacy(float 4.0) #0
store float %rcp, ptr addrspace(1) %out, align 4
ret void
}
; GCN-LABEL: {{^}}rcp_legacy_f32_constant_100.0
; GCN: v_rcp_legacy_f32_e32 {{v[0-9]+}}, 0x42c80000
define amdgpu_kernel void @rcp_legacy_f32_constant_100.0(ptr addrspace(1) %out) #1 {
%rcp = call float @llvm.amdgcn.rcp.legacy(float 100.0) #0
store float %rcp, ptr addrspace(1) %out, align 4
ret void
}
; GCN-LABEL: {{^}}rcp_legacy_undef_f32:
; GCN-NOT: v_rcp_legacy_f32
define amdgpu_kernel void @rcp_legacy_undef_f32(ptr addrspace(1) %out) #1 {
%rcp = call float @llvm.amdgcn.rcp.legacy(float undef)
store float %rcp, ptr addrspace(1) %out, align 4
ret void
}
attributes #0 = { nounwind readnone }
attributes #1 = { nounwind }
|
