[llvm] r175445 - R600: Support for TBO
Vincent Lejeune
vljn at ovi.com
Mon Feb 18 06:11:19 PST 2013
Author: vljn
Date: Mon Feb 18 08:11:19 2013
New Revision: 175445
URL: http://llvm.org/viewvc/llvm-project?rev=175445&view=rev
Log:
R600: Support for TBO
NOTE: This is a candidate for the Mesa stable branch.
Reviewed-by: Tom Stellard <thomas.stellard at amd.com>
Modified:
llvm/trunk/lib/Target/R600/MCTargetDesc/R600MCCodeEmitter.cpp
llvm/trunk/lib/Target/R600/R600Instructions.td
llvm/trunk/lib/Target/R600/R600Intrinsics.td
Modified: llvm/trunk/lib/Target/R600/MCTargetDesc/R600MCCodeEmitter.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/R600/MCTargetDesc/R600MCCodeEmitter.cpp?rev=175445&r1=175444&r2=175445&view=diff
==============================================================================
--- llvm/trunk/lib/Target/R600/MCTargetDesc/R600MCCodeEmitter.cpp (original)
+++ llvm/trunk/lib/Target/R600/MCTargetDesc/R600MCCodeEmitter.cpp Mon Feb 18 08:11:19 2013
@@ -165,7 +165,8 @@ void R600MCCodeEmitter::EncodeInstructio
case AMDGPU::VTX_READ_GLOBAL_8_eg:
case AMDGPU::VTX_READ_GLOBAL_32_eg:
case AMDGPU::VTX_READ_GLOBAL_128_eg:
- case AMDGPU::TEX_VTX_CONSTBUF: {
+ case AMDGPU::TEX_VTX_CONSTBUF:
+ case AMDGPU::TEX_VTX_TEXBUF : {
uint64_t InstWord01 = getBinaryCodeForInstr(MI, Fixups);
uint32_t InstWord2 = MI.getOperand(2).getImm(); // Offset
Modified: llvm/trunk/lib/Target/R600/R600Instructions.td
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/R600/R600Instructions.td?rev=175445&r1=175444&r2=175445&view=diff
==============================================================================
--- llvm/trunk/lib/Target/R600/R600Instructions.td (original)
+++ llvm/trunk/lib/Target/R600/R600Instructions.td Mon Feb 18 08:11:19 2013
@@ -1708,6 +1708,60 @@ def TEX_VTX_CONSTBUF :
// Inst{127-96} = 0;
}
+def TEX_VTX_TEXBUF:
+ InstR600ISA <(outs R600_Reg128:$dst), (ins MEMxi:$ptr, i32imm:$BUFFER_ID), "TEX_VTX_EXPLICIT_READ $dst, $ptr",
+ [(set R600_Reg128:$dst, (int_R600_load_texbuf ADDRGA_VAR_OFFSET:$ptr, imm:$BUFFER_ID))]>,
+VTX_WORD1_GPR, VTX_WORD0 {
+
+let VC_INST = 0;
+let FETCH_TYPE = 2;
+let FETCH_WHOLE_QUAD = 0;
+let SRC_REL = 0;
+let SRC_SEL_X = 0;
+let DST_REL = 0;
+let USE_CONST_FIELDS = 1;
+let NUM_FORMAT_ALL = 0;
+let FORMAT_COMP_ALL = 0;
+let SRF_MODE_ALL = 1;
+let MEGA_FETCH_COUNT = 16;
+let DST_SEL_X = 0;
+let DST_SEL_Y = 1;
+let DST_SEL_Z = 2;
+let DST_SEL_W = 3;
+let DATA_FORMAT = 0;
+
+let Inst{31-0} = Word0;
+let Inst{63-32} = Word1;
+
+// LLVM can only encode 64-bit instructions, so these fields are manually
+// encoded in R600CodeEmitter
+//
+// bits<16> OFFSET;
+// bits<2> ENDIAN_SWAP = 0;
+// bits<1> CONST_BUF_NO_STRIDE = 0;
+// bits<1> MEGA_FETCH = 0;
+// bits<1> ALT_CONST = 0;
+// bits<2> BUFFER_INDEX_MODE = 0;
+
+
+
+// VTX_WORD2 (LLVM can only encode 64-bit instructions, so WORD2 encoding
+// is done in R600CodeEmitter
+//
+// Inst{79-64} = OFFSET;
+// Inst{81-80} = ENDIAN_SWAP;
+// Inst{82} = CONST_BUF_NO_STRIDE;
+// Inst{83} = MEGA_FETCH;
+// Inst{84} = ALT_CONST;
+// Inst{86-85} = BUFFER_INDEX_MODE;
+// Inst{95-86} = 0; Reserved
+
+// VTX_WORD3 (Padding)
+//
+// Inst{127-96} = 0;
+}
+
+
//===--------------------------------------------------------------------===//
// Instructions support
Modified: llvm/trunk/lib/Target/R600/R600Intrinsics.td
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/R600/R600Intrinsics.td?rev=175445&r1=175444&r2=175445&view=diff
==============================================================================
--- llvm/trunk/lib/Target/R600/R600Intrinsics.td (original)
+++ llvm/trunk/lib/Target/R600/R600Intrinsics.td Mon Feb 18 08:11:19 2013
@@ -16,6 +16,8 @@ let TargetPrefix = "R600", isTarget = 1
Intrinsic<[llvm_float_ty], [llvm_i32_ty], [IntrNoMem]>;
def int_R600_interp_input :
Intrinsic<[llvm_float_ty], [llvm_i32_ty, llvm_i32_ty], [IntrNoMem]>;
+ def int_R600_load_texbuf :
+ Intrinsic<[llvm_v4f32_ty], [llvm_i32_ty, llvm_i32_ty], [IntrNoMem]>;
def int_R600_store_swizzle :
Intrinsic<[], [llvm_v4f32_ty, llvm_i32_ty, llvm_i32_ty], []>;
def int_R600_store_stream_output :
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