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R600: Remove a few more things from AMDILISelLowering 

Try to keep all the setOperationActions for integer ops
together.

llvm-svn: 211001
This commit is contained in:
Matt Arsenault 2014-06-15 21:08:58 +00:00
parent b5dff9ab50
commit 717c1d0319
3 changed files with 71 additions and 27 deletions
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40
llvm/lib/Target/R600/AMDGPUISelLowering.cpp
View File

@ -126,11 +126,6 @@ AMDGPUTargetLowering::AMDGPUTargetLowering(TargetMachine &TM) :
setOperationAction(ISD::FROUND, MVT::f32, Legal);
setOperationAction(ISD::FTRUNC, MVT::f32, Legal);
// The hardware supports 32-bit ROTR, but not ROTL.
setOperationAction(ISD::ROTL, MVT::i32, Expand);
setOperationAction(ISD::ROTL, MVT::i64, Expand);
setOperationAction(ISD::ROTR, MVT::i64, Expand);
// Lower floating point store/load to integer store/load to reduce the number
// of patterns in tablegen.
setOperationAction(ISD::STORE, MVT::f32, Promote);
@ -223,18 +218,6 @@ AMDGPUTargetLowering::AMDGPUTargetLowering(TargetMachine &TM) :
setOperationAction(ISD::BR_CC, MVT::i1, Expand);
setOperationAction(ISD::SELECT_CC, MVT::i64, Expand);
setOperationAction(ISD::UINT_TO_FP, MVT::i64, Custom);
setOperationAction(ISD::MUL, MVT::i64, Expand);
setOperationAction(ISD::SUB, MVT::i64, Expand);
setOperationAction(ISD::UDIV, MVT::i32, Expand);
setOperationAction(ISD::UDIVREM, MVT::i32, Custom);
setOperationAction(ISD::UDIVREM, MVT::i64, Custom);
setOperationAction(ISD::UREM, MVT::i32, Expand);
if (!Subtarget->hasBFI()) {
// fcopysign can be done in a single instruction with BFI.
setOperationAction(ISD::FCOPYSIGN, MVT::f32, Expand);
@ -243,8 +226,12 @@ AMDGPUTargetLowering::AMDGPUTargetLowering(TargetMachine &TM) :
const MVT ScalarIntVTs[] = { MVT::i32, MVT::i64 };
for (MVT VT : ScalarIntVTs) {
setOperationAction(ISD::SREM, VT, Expand);
setOperationAction(ISD::SDIV, VT, Custom);
// GPU does not have divrem function for signed or unsigned.
setOperationAction(ISD::SDIVREM, VT, Expand);
setOperationAction(ISD::UDIVREM, VT, Custom);
// GPU does not have [S|U]MUL_LOHI functions as a single instruction.
setOperationAction(ISD::SMUL_LOHI, VT, Expand);
@ -261,6 +248,19 @@ AMDGPUTargetLowering::AMDGPUTargetLowering(TargetMachine &TM) :
if (!Subtarget->hasBCNT(64))
setOperationAction(ISD::CTPOP, MVT::i64, Expand);
// The hardware supports 32-bit ROTR, but not ROTL.
setOperationAction(ISD::ROTL, MVT::i32, Expand);
setOperationAction(ISD::ROTL, MVT::i64, Expand);
setOperationAction(ISD::ROTR, MVT::i64, Expand);
setOperationAction(ISD::MUL, MVT::i64, Expand);
setOperationAction(ISD::MULHU, MVT::i64, Expand);
setOperationAction(ISD::MULHS, MVT::i64, Expand);
setOperationAction(ISD::SUB, MVT::i64, Expand);
setOperationAction(ISD::UDIV, MVT::i32, Expand);
setOperationAction(ISD::UREM, MVT::i32, Expand);
setOperationAction(ISD::UINT_TO_FP, MVT::i64, Custom);
setOperationAction(ISD::SELECT_CC, MVT::i64, Expand);
static const MVT::SimpleValueType VectorIntTypes[] = {
MVT::v2i32, MVT::v4i32
@ -280,15 +280,17 @@ AMDGPUTargetLowering::AMDGPUTargetLowering(TargetMachine &TM) :
setOperationAction(ISD::ROTL, VT, Expand);
setOperationAction(ISD::ROTR, VT, Expand);
setOperationAction(ISD::SUB, VT, Expand);
setOperationAction(ISD::UDIV, VT, Expand);
setOperationAction(ISD::SINT_TO_FP, VT, Expand);
setOperationAction(ISD::UINT_TO_FP, VT, Expand);
// TODO: Implement custom UREM / SREM routines.
setOperationAction(ISD::SDIV, VT, Custom);
setOperationAction(ISD::UDIV, VT, Expand);
setOperationAction(ISD::SREM, VT, Expand);
setOperationAction(ISD::UREM, VT, Expand);
setOperationAction(ISD::SDIVREM, VT, Expand);
setOperationAction(ISD::SMUL_LOHI, VT, Expand);
setOperationAction(ISD::UMUL_LOHI, VT, Expand);
setOperationAction(ISD::SDIVREM, VT, Expand);
setOperationAction(ISD::UDIVREM, VT, Custom);
setOperationAction(ISD::SELECT, VT, Expand);
setOperationAction(ISD::VSELECT, VT, Expand);
setOperationAction(ISD::XOR, VT, Expand);

8
llvm/lib/Target/R600/AMDILISelLowering.cpp
View File

@ -55,12 +55,6 @@ void AMDGPUTargetLowering::InitAMDILLowering() {
setOperationAction(ISD::BRCOND, VT, Custom);
setOperationAction(ISD::BR_JT, VT, Expand);
setOperationAction(ISD::BRIND, VT, Expand);
// TODO: Implement custom UREM/SREM routines
setOperationAction(ISD::SREM, VT, Expand);
setOperationAction(ISD::SMUL_LOHI, VT, Expand);
setOperationAction(ISD::UMUL_LOHI, VT, Expand);
if (VT != MVT::i64)
setOperationAction(ISD::SDIV, VT, Custom);
}
for (MVT VT : FloatTypes) {
@ -72,8 +66,6 @@ void AMDGPUTargetLowering::InitAMDILLowering() {
setOperationAction(ISD::SELECT_CC, VT, Expand);
}
setOperationAction(ISD::MULHU, MVT::i64, Expand);
setOperationAction(ISD::MULHS, MVT::i64, Expand);
if (STM.hasHWFP64()) {
setOperationAction(ISD::ConstantFP, MVT::f64, Legal);
setOperationAction(ISD::FABS, MVT::f64, Expand);

50
llvm/test/CodeGen/R600/srem.ll Normal file
View File

@ -0,0 +1,50 @@
; RUN: llc -march=r600 -mcpu=SI < %s
; RUN: llc -march=r600 -mcpu=redwood < %s
define void @srem_i32(i32 addrspace(1)* %out, i32 addrspace(1)* %in) {
%den_ptr = getelementptr i32 addrspace(1)* %in, i32 1
%num = load i32 addrspace(1) * %in
%den = load i32 addrspace(1) * %den_ptr
%result = srem i32 %num, %den
store i32 %result, i32 addrspace(1)* %out
ret void
}
define void @srem_i32_4(i32 addrspace(1)* %out, i32 addrspace(1)* %in) {
%num = load i32 addrspace(1) * %in
%result = srem i32 %num, 4
store i32 %result, i32 addrspace(1)* %out
ret void
}
define void @srem_v2i32(<2 x i32> addrspace(1)* %out, <2 x i32> addrspace(1)* %in) {
%den_ptr = getelementptr <2 x i32> addrspace(1)* %in, i32 1
%num = load <2 x i32> addrspace(1) * %in
%den = load <2 x i32> addrspace(1) * %den_ptr
%result = srem <2 x i32> %num, %den
store <2 x i32> %result, <2 x i32> addrspace(1)* %out
ret void
}
define void @srem_v2i32_4(<2 x i32> addrspace(1)* %out, <2 x i32> addrspace(1)* %in) {
%num = load <2 x i32> addrspace(1) * %in
%result = srem <2 x i32> %num, <i32 4, i32 4>
store <2 x i32> %result, <2 x i32> addrspace(1)* %out
ret void
}
define void @srem_v4i32(<4 x i32> addrspace(1)* %out, <4 x i32> addrspace(1)* %in) {
%den_ptr = getelementptr <4 x i32> addrspace(1)* %in, i32 1
%num = load <4 x i32> addrspace(1) * %in
%den = load <4 x i32> addrspace(1) * %den_ptr
%result = srem <4 x i32> %num, %den
store <4 x i32> %result, <4 x i32> addrspace(1)* %out
ret void
}
define void @srem_v4i32_4(<4 x i32> addrspace(1)* %out, <4 x i32> addrspace(1)* %in) {
%num = load <4 x i32> addrspace(1) * %in
%result = srem <4 x i32> %num, <i32 4, i32 4, i32 4, i32 4>
store <4 x i32> %result, <4 x i32> addrspace(1)* %out
ret void
}