llvm/test/CodeGen/AMDGPU/fdiv.f64.ll
Matt Arsenault 7eba65d30c AMDGPU: Use unsigned compare for eq/ne
For some reason there are both of these available, except
for scalar 64-bit compares which only has u64. I'm not sure
why there are both (I'm guessing it's for the one bit inputs we
don't use), but for consistency always using the
unsigned one.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@282832 91177308-0d34-0410-b5e6-96231b3b80d8
2016-09-30 01:50:20 +00:00

97 lines
4.5 KiB
LLVM

; RUN: llc -march=amdgcn -mcpu=hawaii -verify-machineinstrs < %s | FileCheck -check-prefix=CI -check-prefix=COMMON %s
; RUN: llc -march=amdgcn -mcpu=tahiti -verify-machineinstrs < %s | FileCheck -check-prefix=SI -check-prefix=COMMON %s
; RUN: llc -march=amdgcn -mcpu=tonga -verify-machineinstrs < %s | FileCheck -check-prefix=CI -check-prefix=COMMON %s
; COMMON-LABEL: {{^}}fdiv_f64:
; COMMON-DAG: buffer_load_dwordx2 [[NUM:v\[[0-9]+:[0-9]+\]]], off, {{s\[[0-9]+:[0-9]+\]}}, 0
; COMMON-DAG: buffer_load_dwordx2 [[DEN:v\[[0-9]+:[0-9]+\]]], off, {{s\[[0-9]+:[0-9]+\]}}, 0 offset:8
; CI-DAG: v_div_scale_f64 [[SCALE0:v\[[0-9]+:[0-9]+\]]], {{s\[[0-9]+:[0-9]+\]}}, [[DEN]], [[DEN]], [[NUM]]
; CI-DAG: v_div_scale_f64 [[SCALE1:v\[[0-9]+:[0-9]+\]]], vcc, [[NUM]], [[DEN]], [[NUM]]
; Check for div_scale bug workaround on SI
; SI-DAG: v_div_scale_f64 [[SCALE0:v\[[0-9]+:[0-9]+\]]], {{s\[[0-9]+:[0-9]+\]}}, [[DEN]], [[DEN]], [[NUM]]
; SI-DAG: v_div_scale_f64 [[SCALE1:v\[[0-9]+:[0-9]+\]]], {{s\[[0-9]+:[0-9]+\]}}, [[NUM]], [[DEN]], [[NUM]]
; COMMON-DAG: v_rcp_f64_e32 [[RCP_SCALE0:v\[[0-9]+:[0-9]+\]]], [[SCALE0]]
; SI-DAG: v_cmp_eq_u32_e32 vcc, {{v[0-9]+}}, {{v[0-9]+}}
; SI-DAG: v_cmp_eq_u32_e64 [[CMP0:s\[[0-9]+:[0-9]+\]]], {{v[0-9]+}}, {{v[0-9]+}}
; SI-DAG: s_xor_b64 vcc, [[CMP0]], vcc
; COMMON-DAG: v_fma_f64 [[FMA0:v\[[0-9]+:[0-9]+\]]], -[[SCALE0]], [[RCP_SCALE0]], 1.0
; COMMON-DAG: v_fma_f64 [[FMA1:v\[[0-9]+:[0-9]+\]]], [[RCP_SCALE0]], [[FMA0]], [[RCP_SCALE0]]
; COMMON-DAG: v_fma_f64 [[FMA2:v\[[0-9]+:[0-9]+\]]], -[[SCALE0]], [[FMA1]], 1.0
; COMMON-DAG: v_fma_f64 [[FMA3:v\[[0-9]+:[0-9]+\]]], [[FMA1]], [[FMA2]], [[FMA1]]
; COMMON-DAG: v_mul_f64 [[MUL:v\[[0-9]+:[0-9]+\]]], [[SCALE1]], [[FMA3]]
; COMMON-DAG: v_fma_f64 [[FMA4:v\[[0-9]+:[0-9]+\]]], -[[SCALE0]], [[MUL]], [[SCALE1]]
; COMMON: v_div_fmas_f64 [[FMAS:v\[[0-9]+:[0-9]+\]]], [[FMA4]], [[FMA3]], [[MUL]]
; COMMON: v_div_fixup_f64 [[RESULT:v\[[0-9]+:[0-9]+\]]], [[FMAS]], [[DEN]], [[NUM]]
; COMMON: buffer_store_dwordx2 [[RESULT]]
; COMMON: s_endpgm
define void @fdiv_f64(double addrspace(1)* %out, double addrspace(1)* %in) nounwind {
%gep.1 = getelementptr double, double addrspace(1)* %in, i32 1
%num = load volatile double, double addrspace(1)* %in
%den = load volatile double, double addrspace(1)* %gep.1
%result = fdiv double %num, %den
store double %result, double addrspace(1)* %out
ret void
}
; COMMON-LABEL: {{^}}fdiv_f64_s_v:
define void @fdiv_f64_s_v(double addrspace(1)* %out, double addrspace(1)* %in, double %num) nounwind {
%den = load double, double addrspace(1)* %in
%result = fdiv double %num, %den
store double %result, double addrspace(1)* %out
ret void
}
; COMMON-LABEL: {{^}}fdiv_f64_v_s:
define void @fdiv_f64_v_s(double addrspace(1)* %out, double addrspace(1)* %in, double %den) nounwind {
%num = load double, double addrspace(1)* %in
%result = fdiv double %num, %den
store double %result, double addrspace(1)* %out
ret void
}
; COMMON-LABEL: {{^}}fdiv_f64_s_s:
define void @fdiv_f64_s_s(double addrspace(1)* %out, double %num, double %den) nounwind {
%result = fdiv double %num, %den
store double %result, double addrspace(1)* %out
ret void
}
; COMMON-LABEL: {{^}}v_fdiv_v2f64:
define void @v_fdiv_v2f64(<2 x double> addrspace(1)* %out, <2 x double> addrspace(1)* %in) nounwind {
%gep.1 = getelementptr <2 x double>, <2 x double> addrspace(1)* %in, i32 1
%num = load <2 x double>, <2 x double> addrspace(1)* %in
%den = load <2 x double>, <2 x double> addrspace(1)* %gep.1
%result = fdiv <2 x double> %num, %den
store <2 x double> %result, <2 x double> addrspace(1)* %out
ret void
}
; COMMON-LABEL: {{^}}s_fdiv_v2f64:
define void @s_fdiv_v2f64(<2 x double> addrspace(1)* %out, <2 x double> %num, <2 x double> %den) {
%result = fdiv <2 x double> %num, %den
store <2 x double> %result, <2 x double> addrspace(1)* %out
ret void
}
; COMMON-LABEL: {{^}}v_fdiv_v4f64:
define void @v_fdiv_v4f64(<4 x double> addrspace(1)* %out, <4 x double> addrspace(1)* %in) nounwind {
%gep.1 = getelementptr <4 x double>, <4 x double> addrspace(1)* %in, i32 1
%num = load <4 x double>, <4 x double> addrspace(1)* %in
%den = load <4 x double>, <4 x double> addrspace(1)* %gep.1
%result = fdiv <4 x double> %num, %den
store <4 x double> %result, <4 x double> addrspace(1)* %out
ret void
}
; COMMON-LABEL: {{^}}s_fdiv_v4f64:
define void @s_fdiv_v4f64(<4 x double> addrspace(1)* %out, <4 x double> %num, <4 x double> %den) {
%result = fdiv <4 x double> %num, %den
store <4 x double> %result, <4 x double> addrspace(1)* %out
ret void
}