llvm-6502/test/CodeGen/R600/fneg-fabs.f64.ll
Matt Arsenault 16fc5e9c0f R600/SI: Remove v_sub_f64 pseudo
The expansion code does the same thing. Since
the operands were not defined with the correct
types, this has the side effect of fixing operand
folding since the expanded pseudo would never use
SGPRs or inline immediates.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230072 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-20 22:10:45 +00:00

101 lines
4.2 KiB
LLVM

; RUN: llc -march=amdgcn -mcpu=SI -verify-machineinstrs < %s | FileCheck -check-prefix=SI -check-prefix=FUNC %s
; RUN: llc -march=amdgcn -mcpu=tonga -verify-machineinstrs < %s | FileCheck -check-prefix=SI -check-prefix=FUNC %s
; FIXME: Check something here. Currently it seems fabs + fneg aren't
; into 2 modifiers, although theoretically that should work.
; FUNC-LABEL: {{^}}fneg_fabs_fadd_f64:
; SI: v_add_f64 {{v\[[0-9]+:[0-9]+\]}}, {{s\[[0-9]+:[0-9]+\]}}, -|v{{\[[0-9]+:[0-9]+\]}}|
define void @fneg_fabs_fadd_f64(double addrspace(1)* %out, double %x, double %y) {
%fabs = call double @llvm.fabs.f64(double %x)
%fsub = fsub double -0.000000e+00, %fabs
%fadd = fadd double %y, %fsub
store double %fadd, double addrspace(1)* %out, align 8
ret void
}
define void @v_fneg_fabs_fadd_f64(double addrspace(1)* %out, double addrspace(1)* %xptr, double addrspace(1)* %yptr) {
%x = load double addrspace(1)* %xptr, align 8
%y = load double addrspace(1)* %xptr, align 8
%fabs = call double @llvm.fabs.f64(double %x)
%fsub = fsub double -0.000000e+00, %fabs
%fadd = fadd double %y, %fsub
store double %fadd, double addrspace(1)* %out, align 8
ret void
}
; FUNC-LABEL: {{^}}fneg_fabs_fmul_f64:
; SI: v_mul_f64 {{v\[[0-9]+:[0-9]+\]}}, {{s\[[0-9]+:[0-9]+\]}}, -|{{v\[[0-9]+:[0-9]+\]}}|
define void @fneg_fabs_fmul_f64(double addrspace(1)* %out, double %x, double %y) {
%fabs = call double @llvm.fabs.f64(double %x)
%fsub = fsub double -0.000000e+00, %fabs
%fmul = fmul double %y, %fsub
store double %fmul, double addrspace(1)* %out, align 8
ret void
}
; FUNC-LABEL: {{^}}fneg_fabs_free_f64:
define void @fneg_fabs_free_f64(double addrspace(1)* %out, i64 %in) {
%bc = bitcast i64 %in to double
%fabs = call double @llvm.fabs.f64(double %bc)
%fsub = fsub double -0.000000e+00, %fabs
store double %fsub, double addrspace(1)* %out
ret void
}
; FUNC-LABEL: {{^}}fneg_fabs_fn_free_f64:
; SI: v_mov_b32_e32 [[IMMREG:v[0-9]+]], 0x80000000
; SI: v_or_b32_e32 v{{[0-9]+}}, s{{[0-9]+}}, [[IMMREG]]
define void @fneg_fabs_fn_free_f64(double addrspace(1)* %out, i64 %in) {
%bc = bitcast i64 %in to double
%fabs = call double @fabs(double %bc)
%fsub = fsub double -0.000000e+00, %fabs
store double %fsub, double addrspace(1)* %out
ret void
}
; FUNC-LABEL: {{^}}fneg_fabs_f64:
; SI: s_load_dwordx2 s{{\[}}[[LO_X:[0-9]+]]:[[HI_X:[0-9]+]]{{\]}}
; SI: s_load_dwordx2
; SI: v_mov_b32_e32 [[IMMREG:v[0-9]+]], 0x80000000
; SI-DAG: v_or_b32_e32 v[[HI_V:[0-9]+]], s[[HI_X]], [[IMMREG]]
; SI-DAG: v_mov_b32_e32 v[[LO_V:[0-9]+]], s[[LO_X]]
; SI: buffer_store_dwordx2 v{{\[}}[[LO_V]]:[[HI_V]]{{\]}}
define void @fneg_fabs_f64(double addrspace(1)* %out, double %in) {
%fabs = call double @llvm.fabs.f64(double %in)
%fsub = fsub double -0.000000e+00, %fabs
store double %fsub, double addrspace(1)* %out, align 8
ret void
}
; FUNC-LABEL: {{^}}fneg_fabs_v2f64:
; SI: v_mov_b32_e32 [[IMMREG:v[0-9]+]], 0x80000000
; SI-NOT: 0x80000000
; SI: v_or_b32_e32 v{{[0-9]+}}, s{{[0-9]+}}, [[IMMREG]]
; SI: v_or_b32_e32 v{{[0-9]+}}, s{{[0-9]+}}, [[IMMREG]]
define void @fneg_fabs_v2f64(<2 x double> addrspace(1)* %out, <2 x double> %in) {
%fabs = call <2 x double> @llvm.fabs.v2f64(<2 x double> %in)
%fsub = fsub <2 x double> <double -0.000000e+00, double -0.000000e+00>, %fabs
store <2 x double> %fsub, <2 x double> addrspace(1)* %out
ret void
}
; FUNC-LABEL: {{^}}fneg_fabs_v4f64:
; SI: v_mov_b32_e32 [[IMMREG:v[0-9]+]], 0x80000000
; SI-NOT: 0x80000000
; SI: v_or_b32_e32 v{{[0-9]+}}, s{{[0-9]+}}, [[IMMREG]]
; SI: v_or_b32_e32 v{{[0-9]+}}, s{{[0-9]+}}, [[IMMREG]]
; SI: v_or_b32_e32 v{{[0-9]+}}, s{{[0-9]+}}, [[IMMREG]]
; SI: v_or_b32_e32 v{{[0-9]+}}, s{{[0-9]+}}, [[IMMREG]]
define void @fneg_fabs_v4f64(<4 x double> addrspace(1)* %out, <4 x double> %in) {
%fabs = call <4 x double> @llvm.fabs.v4f64(<4 x double> %in)
%fsub = fsub <4 x double> <double -0.000000e+00, double -0.000000e+00, double -0.000000e+00, double -0.000000e+00>, %fabs
store <4 x double> %fsub, <4 x double> addrspace(1)* %out
ret void
}
declare double @fabs(double) readnone
declare double @llvm.fabs.f64(double) readnone
declare <2 x double> @llvm.fabs.v2f64(<2 x double>) readnone
declare <4 x double> @llvm.fabs.v4f64(<4 x double>) readnone