You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
144 lines
5.1 KiB
144 lines
5.1 KiB
; RUN: llc -march=amdgcn -mcpu=tahiti -verify-machineinstrs < %s | FileCheck -check-prefix=GCN -check-prefix=FUNC %s
|
|
; RUN: llc -march=amdgcn -mcpu=tonga -verify-machineinstrs < %s | FileCheck -check-prefix=GCN -check-prefix=FUNC %s
|
|
; RUN: llc -march=r600 -mcpu=redwood < %s | FileCheck -check-prefix=R600 -check-prefix=FUNC %s
|
|
|
|
|
|
; Run with unsafe-fp-math to make sure nothing tries to turn this into 1 / rsqrt(x)
|
|
|
|
; FUNC-LABEL: {{^}}v_safe_fsqrt_f32:
|
|
; GCN: v_sqrt_f32_e32 {{v[0-9]+, v[0-9]+}}
|
|
define void @v_safe_fsqrt_f32(float addrspace(1)* %out, float addrspace(1)* %in) #1 {
|
|
%r0 = load float, float addrspace(1)* %in
|
|
%r1 = call float @llvm.sqrt.f32(float %r0)
|
|
store float %r1, float addrspace(1)* %out
|
|
ret void
|
|
}
|
|
|
|
; FUNC-LABEL: {{^}}v_unsafe_fsqrt_f32:
|
|
; GCN: v_sqrt_f32_e32 {{v[0-9]+, v[0-9]+}}
|
|
define void @v_unsafe_fsqrt_f32(float addrspace(1)* %out, float addrspace(1)* %in) #2 {
|
|
%r0 = load float, float addrspace(1)* %in
|
|
%r1 = call float @llvm.sqrt.f32(float %r0)
|
|
store float %r1, float addrspace(1)* %out
|
|
ret void
|
|
}
|
|
|
|
|
|
; FUNC-LABEL: {{^}}s_sqrt_f32:
|
|
; GCN: v_sqrt_f32_e32
|
|
|
|
; R600: RECIPSQRT_CLAMPED * T{{[0-9]\.[XYZW]}}, KC0[2].Z
|
|
; R600: MUL NON-IEEE T{{[0-9]\.[XYZW]}}, KC0[2].Z, PS
|
|
define void @s_sqrt_f32(float addrspace(1)* %out, float %in) #1 {
|
|
entry:
|
|
%fdiv = call float @llvm.sqrt.f32(float %in)
|
|
store float %fdiv, float addrspace(1)* %out
|
|
ret void
|
|
}
|
|
|
|
; FUNC-LABEL: {{^}}s_sqrt_v2f32:
|
|
; GCN: v_sqrt_f32_e32
|
|
; GCN: v_sqrt_f32_e32
|
|
|
|
; R600-DAG: RECIPSQRT_CLAMPED * T{{[0-9]\.[XYZW]}}, KC0[2].W
|
|
; R600-DAG: MUL NON-IEEE T{{[0-9]\.[XYZW]}}, KC0[2].W, PS
|
|
; R600-DAG: RECIPSQRT_CLAMPED * T{{[0-9]\.[XYZW]}}, KC0[3].X
|
|
; R600-DAG: MUL NON-IEEE T{{[0-9]\.[XYZW]}}, KC0[3].X, PS
|
|
define void @s_sqrt_v2f32(<2 x float> addrspace(1)* %out, <2 x float> %in) #1 {
|
|
entry:
|
|
%fdiv = call <2 x float> @llvm.sqrt.v2f32(<2 x float> %in)
|
|
store <2 x float> %fdiv, <2 x float> addrspace(1)* %out
|
|
ret void
|
|
}
|
|
|
|
; FUNC-LABEL: {{^}}s_sqrt_v4f32:
|
|
; GCN: v_sqrt_f32_e32
|
|
; GCN: v_sqrt_f32_e32
|
|
; GCN: v_sqrt_f32_e32
|
|
; GCN: v_sqrt_f32_e32
|
|
|
|
; R600-DAG: RECIPSQRT_CLAMPED * T{{[0-9]\.[XYZW]}}, KC0[3].Y
|
|
; R600-DAG: MUL NON-IEEE T{{[0-9]\.[XYZW]}}, KC0[3].Y, PS
|
|
; R600-DAG: RECIPSQRT_CLAMPED * T{{[0-9]\.[XYZW]}}, KC0[3].Z
|
|
; R600-DAG: MUL NON-IEEE T{{[0-9]\.[XYZW]}}, KC0[3].Z, PS
|
|
; R600-DAG: RECIPSQRT_CLAMPED * T{{[0-9]\.[XYZW]}}, KC0[3].W
|
|
; R600-DAG: MUL NON-IEEE T{{[0-9]\.[XYZW]}}, KC0[3].W, PS
|
|
; R600-DAG: RECIPSQRT_CLAMPED * T{{[0-9]\.[XYZW]}}, KC0[4].X
|
|
; R600-DAG: MUL NON-IEEE T{{[0-9]\.[XYZW]}}, KC0[4].X, PS
|
|
define void @s_sqrt_v4f32(<4 x float> addrspace(1)* %out, <4 x float> %in) #1 {
|
|
entry:
|
|
%fdiv = call <4 x float> @llvm.sqrt.v4f32(<4 x float> %in)
|
|
store <4 x float> %fdiv, <4 x float> addrspace(1)* %out
|
|
ret void
|
|
}
|
|
|
|
; FUNC-LABEL: {{^}}elim_redun_check_neg0:
|
|
; GCN: v_sqrt_f32_e32
|
|
; GCN-NOT: v_cndmask
|
|
define void @elim_redun_check_neg0(float addrspace(1)* %out, float %in) #1 {
|
|
entry:
|
|
%sqrt = call float @llvm.sqrt.f32(float %in)
|
|
%cmp = fcmp olt float %in, -0.000000e+00
|
|
%res = select i1 %cmp, float 0x7FF8000000000000, float %sqrt
|
|
store float %res, float addrspace(1)* %out
|
|
ret void
|
|
}
|
|
|
|
; FUNC-LABEL: {{^}}elim_redun_check_pos0:
|
|
; GCN: v_sqrt_f32_e32
|
|
; GCN-NOT: v_cndmask
|
|
define void @elim_redun_check_pos0(float addrspace(1)* %out, float %in) #1 {
|
|
entry:
|
|
%sqrt = call float @llvm.sqrt.f32(float %in)
|
|
%cmp = fcmp olt float %in, 0.000000e+00
|
|
%res = select i1 %cmp, float 0x7FF8000000000000, float %sqrt
|
|
store float %res, float addrspace(1)* %out
|
|
ret void
|
|
}
|
|
|
|
; FUNC-LABEL: {{^}}elim_redun_check_ult:
|
|
; GCN: v_sqrt_f32_e32
|
|
; GCN-NOT: v_cndmask
|
|
define void @elim_redun_check_ult(float addrspace(1)* %out, float %in) #1 {
|
|
entry:
|
|
%sqrt = call float @llvm.sqrt.f32(float %in)
|
|
%cmp = fcmp ult float %in, -0.000000e+00
|
|
%res = select i1 %cmp, float 0x7FF8000000000000, float %sqrt
|
|
store float %res, float addrspace(1)* %out
|
|
ret void
|
|
}
|
|
|
|
; FUNC-LABEL: {{^}}elim_redun_check_v2:
|
|
; GCN: v_sqrt_f32_e32
|
|
; GCN: v_sqrt_f32_e32
|
|
; GCN-NOT: v_cndmask
|
|
define void @elim_redun_check_v2(<2 x float> addrspace(1)* %out, <2 x float> %in) #1 {
|
|
entry:
|
|
%sqrt = call <2 x float> @llvm.sqrt.v2f32(<2 x float> %in)
|
|
%cmp = fcmp olt <2 x float> %in, <float -0.000000e+00, float -0.000000e+00>
|
|
%res = select <2 x i1> %cmp, <2 x float> <float 0x7FF8000000000000, float 0x7FF8000000000000>, <2 x float> %sqrt
|
|
store <2 x float> %res, <2 x float> addrspace(1)* %out
|
|
ret void
|
|
}
|
|
|
|
; FUNC-LABEL: {{^}}elim_redun_check_v2_ult
|
|
; GCN: v_sqrt_f32_e32
|
|
; GCN: v_sqrt_f32_e32
|
|
; GCN-NOT: v_cndmask
|
|
define void @elim_redun_check_v2_ult(<2 x float> addrspace(1)* %out, <2 x float> %in) #1 {
|
|
entry:
|
|
%sqrt = call <2 x float> @llvm.sqrt.v2f32(<2 x float> %in)
|
|
%cmp = fcmp ult <2 x float> %in, <float -0.000000e+00, float -0.000000e+00>
|
|
%res = select <2 x i1> %cmp, <2 x float> <float 0x7FF8000000000000, float 0x7FF8000000000000>, <2 x float> %sqrt
|
|
store <2 x float> %res, <2 x float> addrspace(1)* %out
|
|
ret void
|
|
}
|
|
|
|
declare float @llvm.sqrt.f32(float %in) #0
|
|
declare <2 x float> @llvm.sqrt.v2f32(<2 x float> %in) #0
|
|
declare <4 x float> @llvm.sqrt.v4f32(<4 x float> %in) #0
|
|
|
|
attributes #0 = { nounwind readnone }
|
|
attributes #1 = { nounwind "unsafe-fp-math"="false" }
|
|
attributes #2 = { nounwind "unsafe-fp-math"="true" }
|