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radeon/llvm: Add support for i8 reads on R600

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This commit is contained in:
Tom Stellard 2012-09-13 15:19:48 +00:00
parent b282c9611e
commit e866dbd1b5
3 changed files with 25 additions and 0 deletions
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8
src/gallium/drivers/radeon/AMDGPUInstructions.td
View file

@ -74,6 +74,14 @@ def COND_LE : PatLeaf <
case ISD::SETLE: return true;}}}]
>;
//===----------------------------------------------------------------------===//
// Load/Store Pattern Fragments
//===----------------------------------------------------------------------===//
def zextloadi8_global : PatFrag<(ops node:$ptr), (zextloadi8 node:$ptr), [{
return isGlobalLoad(dyn_cast<LoadSDNode>(N));
}]>;
class Constants {
int TWO_PI = 0x40c90fdb;
int PI = 0x40490fdb;

1
src/gallium/drivers/radeon/MCTargetDesc/R600MCCodeEmitter.cpp
View file

@ -167,6 +167,7 @@ void R600MCCodeEmitter::EncodeInstruction(const MCInst &MI, raw_ostream &OS,
}
case AMDGPU::VTX_READ_PARAM_i32_eg:
case AMDGPU::VTX_READ_PARAM_f32_eg:
case AMDGPU::VTX_READ_GLOBAL_i8_eg:
case AMDGPU::VTX_READ_GLOBAL_i32_eg:
case AMDGPU::VTX_READ_GLOBAL_f32_eg:
case AMDGPU::VTX_READ_GLOBAL_v4i32_eg:

16
src/gallium/drivers/radeon/R600Instructions.td
View file

@ -1059,6 +1059,17 @@ class VTX_READ_eg <bits<8> buffer_id, dag outs, list<dag> pattern>
// Inst{127-96} = 0;
}
class VTX_READ_8_eg <bits<8> buffer_id, list<dag> pattern>
: VTX_READ_eg <buffer_id, (outs R600_TReg32_X:$dst), pattern> {
let MEGA_FETCH_COUNT = 1;
let DST_SEL_X = 0;
let DST_SEL_Y = 7; // Masked
let DST_SEL_Z = 7; // Masked
let DST_SEL_W = 7; // Masked
let DATA_FORMAT = 1; // FMT_8
}
class VTX_READ_32_eg <bits<8> buffer_id, list<dag> pattern>
: VTX_READ_eg <buffer_id, (outs R600_TReg32_X:$dst), pattern> {
@ -1111,6 +1122,11 @@ def VTX_READ_PARAM_f32_eg : VTX_READ_PARAM_32_eg<f32>;
// VTX Read from global memory space
//===----------------------------------------------------------------------===//
// 8-bit reads
def VTX_READ_GLOBAL_i8_eg : VTX_READ_8_eg <1,
[(set (i32 R600_TReg32_X:$dst), (zextloadi8_global ADDRVTX_READ:$ptr))]
>;
// 32-bit reads
class VTX_READ_GLOBAL_eg <ValueType vt> : VTX_READ_32_eg <1,