[llvm] r200195 - R600/SI: Add intrinsic for S_SENDMSG instruction
Michel Danzer
michel.daenzer at amd.com
Sun Jan 26 23:20:45 PST 2014
Author: daenzer
Date: Mon Jan 27 01:20:44 2014
New Revision: 200195
URL: http://llvm.org/viewvc/llvm-project?rev=200195&view=rev
Log:
R600/SI: Add intrinsic for S_SENDMSG instruction
Reviewed-by: Tom Stellard <thomas.stellard at amd.com>
Added:
llvm/trunk/test/CodeGen/R600/llvm.SI.sendmsg.ll
Modified:
llvm/trunk/lib/Target/R600/InstPrinter/AMDGPUInstPrinter.cpp
llvm/trunk/lib/Target/R600/InstPrinter/AMDGPUInstPrinter.h
llvm/trunk/lib/Target/R600/SIInsertWaits.cpp
llvm/trunk/lib/Target/R600/SIInstructions.td
llvm/trunk/lib/Target/R600/SIIntrinsics.td
Modified: llvm/trunk/lib/Target/R600/InstPrinter/AMDGPUInstPrinter.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/R600/InstPrinter/AMDGPUInstPrinter.cpp?rev=200195&r1=200194&r2=200195&view=diff
==============================================================================
--- llvm/trunk/lib/Target/R600/InstPrinter/AMDGPUInstPrinter.cpp (original)
+++ llvm/trunk/lib/Target/R600/InstPrinter/AMDGPUInstPrinter.cpp Mon Jan 27 01:20:44 2014
@@ -316,6 +316,37 @@ void AMDGPUInstPrinter::printKCache(cons
}
}
+void AMDGPUInstPrinter::printSendMsg(const MCInst *MI, unsigned OpNo,
+ raw_ostream &O) {
+ unsigned SImm16 = MI->getOperand(OpNo).getImm();
+ unsigned Msg = SImm16 & 0xF;
+ if (Msg == 2 || Msg == 3) {
+ unsigned Op = (SImm16 >> 4) & 0xF;
+ if (Msg == 3)
+ O << "Gs_done(";
+ else
+ O << "Gs(";
+ if (Op == 0) {
+ O << "nop";
+ } else {
+ unsigned Stream = (SImm16 >> 8) & 0x3;
+ if (Op == 1)
+ O << "cut";
+ else if (Op == 2)
+ O << "emit";
+ else if (Op == 3)
+ O << "emit-cut";
+ O << " stream " << Stream;
+ }
+ O << "), [m0] ";
+ } else if (Msg == 1)
+ O << "interrupt ";
+ else if (Msg == 15)
+ O << "system ";
+ else
+ O << "unknown(" << Msg << ") ";
+}
+
void AMDGPUInstPrinter::printWaitFlag(const MCInst *MI, unsigned OpNo,
raw_ostream &O) {
// Note: Mask values are taken from SIInsertWaits.cpp and not from ISA docs
Modified: llvm/trunk/lib/Target/R600/InstPrinter/AMDGPUInstPrinter.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/R600/InstPrinter/AMDGPUInstPrinter.h?rev=200195&r1=200194&r2=200195&view=diff
==============================================================================
--- llvm/trunk/lib/Target/R600/InstPrinter/AMDGPUInstPrinter.h (original)
+++ llvm/trunk/lib/Target/R600/InstPrinter/AMDGPUInstPrinter.h Mon Jan 27 01:20:44 2014
@@ -53,6 +53,7 @@ private:
void printRSel(const MCInst *MI, unsigned OpNo, raw_ostream &O);
void printCT(const MCInst *MI, unsigned OpNo, raw_ostream &O);
void printKCache(const MCInst *MI, unsigned OpNo, raw_ostream &O);
+ void printSendMsg(const MCInst *MI, unsigned OpNo, raw_ostream &O);
void printWaitFlag(const MCInst *MI, unsigned OpNo, raw_ostream &O);
};
Modified: llvm/trunk/lib/Target/R600/SIInsertWaits.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/R600/SIInsertWaits.cpp?rev=200195&r1=200194&r2=200195&view=diff
==============================================================================
--- llvm/trunk/lib/Target/R600/SIInsertWaits.cpp (original)
+++ llvm/trunk/lib/Target/R600/SIInsertWaits.cpp Mon Jan 27 01:20:44 2014
@@ -314,6 +314,12 @@ Counters SIInsertWaits::handleOperands(M
Counters Result = ZeroCounts;
+ // S_SENDMSG implicitly waits for all outstanding LGKM transfers to finish,
+ // but we also want to wait for any other outstanding transfers before
+ // signalling other hardware blocks
+ if (MI.getOpcode() == AMDGPU::S_SENDMSG)
+ return LastIssued;
+
// For each register affected by this
// instruction increase the result sequence
for (unsigned i = 0, e = MI.getNumOperands(); i != e; ++i) {
Modified: llvm/trunk/lib/Target/R600/SIInstructions.td
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/R600/SIInstructions.td?rev=200195&r1=200194&r2=200195&view=diff
==============================================================================
--- llvm/trunk/lib/Target/R600/SIInstructions.td (original)
+++ llvm/trunk/lib/Target/R600/SIInstructions.td Mon Jan 27 01:20:44 2014
@@ -22,6 +22,10 @@ def InterpSlot : Operand<i32> {
let PrintMethod = "printInterpSlot";
}
+def SendMsgImm : Operand<i32> {
+ let PrintMethod = "printSendMsg";
+}
+
def isSI : Predicate<"Subtarget.getGeneration() "
">= AMDGPUSubtarget::SOUTHERN_ISLANDS">;
@@ -826,17 +830,25 @@ def S_BARRIER : SOPP <0x0000000a, (ins),
def S_WAITCNT : SOPP <0x0000000c, (ins WAIT_FLAG:$simm16), "S_WAITCNT $simm16",
[]
>;
-} // End hasSideEffects
//def S_SETHALT : SOPP_ <0x0000000d, "S_SETHALT", []>;
//def S_SLEEP : SOPP_ <0x0000000e, "S_SLEEP", []>;
//def S_SETPRIO : SOPP_ <0x0000000f, "S_SETPRIO", []>;
-//def S_SENDMSG : SOPP_ <0x00000010, "S_SENDMSG", []>;
+
+let Uses = [EXEC] in {
+ def S_SENDMSG : SOPP <0x00000010, (ins SendMsgImm:$simm16, M0Reg:$m0), "S_SENDMSG $simm16",
+ [(int_SI_sendmsg imm:$simm16, M0Reg:$m0)]
+ > {
+ let DisableEncoding = "$m0";
+ }
+} // End Uses = [EXEC]
+
//def S_SENDMSGHALT : SOPP_ <0x00000011, "S_SENDMSGHALT", []>;
//def S_TRAP : SOPP_ <0x00000012, "S_TRAP", []>;
//def S_ICACHE_INV : SOPP_ <0x00000013, "S_ICACHE_INV", []>;
//def S_INCPERFLEVEL : SOPP_ <0x00000014, "S_INCPERFLEVEL", []>;
//def S_DECPERFLEVEL : SOPP_ <0x00000015, "S_DECPERFLEVEL", []>;
//def S_TTRACEDATA : SOPP_ <0x00000016, "S_TTRACEDATA", []>;
+} // End hasSideEffects
def V_CNDMASK_B32_e32 : VOP2 <0x00000000, (outs VReg_32:$dst),
(ins VSrc_32:$src0, VReg_32:$src1, VCCReg:$vcc),
Modified: llvm/trunk/lib/Target/R600/SIIntrinsics.td
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/R600/SIIntrinsics.td?rev=200195&r1=200194&r2=200195&view=diff
==============================================================================
--- llvm/trunk/lib/Target/R600/SIIntrinsics.td (original)
+++ llvm/trunk/lib/Target/R600/SIIntrinsics.td Mon Jan 27 01:20:44 2014
@@ -38,6 +38,8 @@ let TargetPrefix = "SI", isTarget = 1 in
llvm_i32_ty], // tfe(imm)
[]>;
+ def int_SI_sendmsg : Intrinsic <[], [llvm_i32_ty, llvm_i32_ty], [IntrNoMem]>;
+
class Sample : Intrinsic <[llvm_v4f32_ty], [llvm_anyvector_ty, llvm_v32i8_ty, llvm_anyint_ty, llvm_i32_ty], [IntrNoMem]>;
def int_SI_sample : Sample;
Added: llvm/trunk/test/CodeGen/R600/llvm.SI.sendmsg.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/R600/llvm.SI.sendmsg.ll?rev=200195&view=auto
==============================================================================
--- llvm/trunk/test/CodeGen/R600/llvm.SI.sendmsg.ll (added)
+++ llvm/trunk/test/CodeGen/R600/llvm.SI.sendmsg.ll Mon Jan 27 01:20:44 2014
@@ -0,0 +1,21 @@
+;RUN: llc < %s -march=r600 -mcpu=verde -verify-machineinstrs | FileCheck %s
+
+; CHECK-LABEL: @main
+; CHECK: S_SENDMSG Gs(emit stream 0)
+; CHECK: S_SENDMSG Gs(cut stream 1)
+; CHECK: S_SENDMSG Gs(emit-cut stream 2)
+; CHECK: S_SENDMSG Gs_done(nop)
+
+define void @main() {
+main_body:
+ call void @llvm.SI.sendmsg(i32 34, i32 0);
+ call void @llvm.SI.sendmsg(i32 274, i32 0);
+ call void @llvm.SI.sendmsg(i32 562, i32 0);
+ call void @llvm.SI.sendmsg(i32 3, i32 0);
+ ret void
+}
+
+; Function Attrs: nounwind
+declare void @llvm.SI.sendmsg(i32, i32) #0
+
+attributes #0 = { nounwind }
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