40 lines
1.4 KiB
LLVM
40 lines
1.4 KiB
LLVM
; RUN: llc -march=amdgcn -verify-machineinstrs < %s | FileCheck -check-prefix=SI -check-prefix=FUNC %s
|
|
|
|
declare float @llvm.amdgcn.rsq.legacy(float) #0
|
|
|
|
; FUNC-LABEL: {{^}}rsq_legacy_f32:
|
|
; SI: v_rsq_legacy_f32_e32 {{v[0-9]+}}, {{s[0-9]+}}
|
|
define amdgpu_kernel void @rsq_legacy_f32(float addrspace(1)* %out, float %src) #1 {
|
|
%rsq = call float @llvm.amdgcn.rsq.legacy(float %src) #0
|
|
store float %rsq, float addrspace(1)* %out, align 4
|
|
ret void
|
|
}
|
|
|
|
; TODO: Really these should be constant folded
|
|
; FUNC-LABEL: {{^}}rsq_legacy_f32_constant_4.0
|
|
; SI: v_rsq_legacy_f32_e32 {{v[0-9]+}}, 4.0
|
|
define amdgpu_kernel void @rsq_legacy_f32_constant_4.0(float addrspace(1)* %out) #1 {
|
|
%rsq = call float @llvm.amdgcn.rsq.legacy(float 4.0) #0
|
|
store float %rsq, float addrspace(1)* %out, align 4
|
|
ret void
|
|
}
|
|
|
|
; FUNC-LABEL: {{^}}rsq_legacy_f32_constant_100.0
|
|
; SI: v_rsq_legacy_f32_e32 {{v[0-9]+}}, 0x42c80000
|
|
define amdgpu_kernel void @rsq_legacy_f32_constant_100.0(float addrspace(1)* %out) #1 {
|
|
%rsq = call float @llvm.amdgcn.rsq.legacy(float 100.0) #0
|
|
store float %rsq, float addrspace(1)* %out, align 4
|
|
ret void
|
|
}
|
|
|
|
; FUNC-LABEL: {{^}}rsq_legacy_undef_f32:
|
|
; SI-NOT: v_rsq_legacy_f32
|
|
define amdgpu_kernel void @rsq_legacy_undef_f32(float addrspace(1)* %out) #1 {
|
|
%rsq = call float @llvm.amdgcn.rsq.legacy(float undef)
|
|
store float %rsq, float addrspace(1)* %out, align 4
|
|
ret void
|
|
}
|
|
|
|
attributes #0 = { nounwind readnone }
|
|
attributes #1 = { nounwind }
|