llvm/llvm-3.4-radeonsi-backport.patch

459 lines
18 KiB
Diff

diff --git a/lib/Target/R600/InstPrinter/AMDGPUInstPrinter.cpp b/lib/Target/R600/InstPrinter/AMDGPUInstPrinter.cpp
index 99e1377..7105879 100644
--- a/lib/Target/R600/InstPrinter/AMDGPUInstPrinter.cpp
+++ b/lib/Target/R600/InstPrinter/AMDGPUInstPrinter.cpp
@@ -316,6 +316,37 @@ void AMDGPUInstPrinter::printKCache(const MCInst *MI, unsigned OpNo,
}
}
+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
diff --git a/lib/Target/R600/InstPrinter/AMDGPUInstPrinter.h b/lib/Target/R600/InstPrinter/AMDGPUInstPrinter.h
index 77af942..2876dd2 100644
--- a/lib/Target/R600/InstPrinter/AMDGPUInstPrinter.h
+++ b/lib/Target/R600/InstPrinter/AMDGPUInstPrinter.h
@@ -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);
};
diff --git a/lib/Target/R600/SIInsertWaits.cpp b/lib/Target/R600/SIInsertWaits.cpp
index 7ef662e..695ec40 100644
--- a/lib/Target/R600/SIInsertWaits.cpp
+++ b/lib/Target/R600/SIInsertWaits.cpp
@@ -314,6 +314,12 @@ Counters SIInsertWaits::handleOperands(MachineInstr &MI) {
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) {
diff --git a/lib/Target/R600/SIInstrInfo.td b/lib/Target/R600/SIInstrInfo.td
index 4cd0daa..19d2171 100644
--- a/lib/Target/R600/SIInstrInfo.td
+++ b/lib/Target/R600/SIInstrInfo.td
@@ -425,26 +425,48 @@ class MTBUF_Store_Helper <bits<3> op, string asm, RegisterClass regClass> : MTBU
multiclass MUBUF_Load_Helper <bits<7> op, string asm, RegisterClass regClass> {
- let glc = 0, lds = 0, slc = 0, tfe = 0, soffset = 128 /* ZERO */,
- mayLoad = 1 in {
-
- let offen = 1, idxen = 0, addr64 = 0, offset = 0 in {
- def _OFFEN : MUBUF <op, (outs regClass:$vdata),
- (ins SReg_128:$srsrc, VReg_32:$vaddr),
- asm#" $vdata, $srsrc + $vaddr", []>;
- }
-
- let offen = 0, idxen = 1, addr64 = 0 in {
- def _IDXEN : MUBUF <op, (outs regClass:$vdata),
- (ins SReg_128:$srsrc, VReg_32:$vaddr, i16imm:$offset),
- asm#" $vdata, $srsrc[$vaddr] + $offset", []>;
- }
+ let lds = 0, mayLoad = 1 in {
+
+ let addr64 = 0 in {
+
+ let offen = 0, idxen = 0 in {
+ def _OFFSET : MUBUF <op, (outs regClass:$vdata),
+ (ins SReg_128:$srsrc, VReg_32:$vaddr,
+ i16imm:$offset, SSrc_32:$soffset, i1imm:$glc,
+ i1imm:$slc, i1imm:$tfe),
+ asm#" $vdata, $srsrc + $offset + $soffset, glc=$glc, slc=$slc, tfe=$tfe", []>;
+ }
+
+ let offen = 1, idxen = 0, offset = 0 in {
+ def _OFFEN : MUBUF <op, (outs regClass:$vdata),
+ (ins SReg_128:$srsrc, VReg_32:$vaddr,
+ SSrc_32:$soffset, i1imm:$glc, i1imm:$slc,
+ i1imm:$tfe),
+ asm#" $vdata, $srsrc + $vaddr + $soffset, glc=$glc, slc=$slc, tfe=$tfe", []>;
+ }
+
+ let offen = 0, idxen = 1 in {
+ def _IDXEN : MUBUF <op, (outs regClass:$vdata),
+ (ins SReg_128:$srsrc, VReg_32:$vaddr,
+ i16imm:$offset, SSrc_32:$soffset, i1imm:$glc,
+ i1imm:$slc, i1imm:$tfe),
+ asm#" $vdata, $srsrc[$vaddr] + $offset + $soffset, glc=$glc, slc=$slc, tfe=$tfe", []>;
+ }
+
+ let offen = 1, idxen = 1 in {
+ def _BOTHEN : MUBUF <op, (outs regClass:$vdata),
+ (ins SReg_128:$srsrc, VReg_64:$vaddr,
+ SSrc_32:$soffset, i1imm:$glc,
+ i1imm:$slc, i1imm:$tfe),
+ asm#" $vdata, $srsrc[$vaddr[0]] + $vaddr[1] + $soffset, glc=$glc, slc=$slc, tfe=$tfe", []>;
+ }
+ }
- let offen = 0, idxen = 0, addr64 = 1 in {
- def _ADDR64 : MUBUF <op, (outs regClass:$vdata),
- (ins SReg_128:$srsrc, VReg_64:$vaddr, i16imm:$offset),
- asm#" $vdata, $srsrc + $vaddr + $offset", []>;
- }
+ let offen = 0, idxen = 0, addr64 = 1, glc = 0, slc = 0, tfe = 0, soffset = 128 /* ZERO */ in {
+ def _ADDR64 : MUBUF <op, (outs regClass:$vdata),
+ (ins SReg_128:$srsrc, VReg_64:$vaddr, i16imm:$offset),
+ asm#" $vdata, $srsrc + $vaddr + $offset", []>;
+ }
}
}
diff --git a/lib/Target/R600/SIInstructions.td b/lib/Target/R600/SIInstructions.td
index 76f05eb..9acb9b6 100644
--- a/lib/Target/R600/SIInstructions.td
+++ b/lib/Target/R600/SIInstructions.td
@@ -22,6 +22,10 @@ def InterpSlot : Operand<i32> {
let PrintMethod = "printInterpSlot";
}
+def SendMsgImm : Operand<i32> {
+ let PrintMethod = "printSendMsg";
+}
+
def isSI : Predicate<"Subtarget.getGeneration() "
">= AMDGPUSubtarget::SOUTHERN_ISLANDS">;
@@ -826,17 +830,25 @@ def S_BARRIER : SOPP <0x0000000a, (ins), "S_BARRIER",
def S_WAITCNT : SOPP <0x0000000c, (ins WAIT_FLAG:$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),
@@ -1305,8 +1317,8 @@ def SI_END_CF : InstSI <
def SI_KILL : InstSI <
(outs),
- (ins VReg_32:$src),
- "SI_KIL $src",
+ (ins VSrc_32:$src),
+ "SI_KILL $src",
[(int_AMDGPU_kill f32:$src)]
>;
@@ -1397,13 +1409,13 @@ def : Pat<
def : Pat <
(int_AMDGPU_kilp),
- (SI_KILL (V_MOV_B32_e32 0xbf800000))
+ (SI_KILL 0xbf800000)
>;
/* int_SI_vs_load_input */
def : Pat<
(SIload_input i128:$tlst, IMM12bit:$attr_offset, i32:$buf_idx_vgpr),
- (BUFFER_LOAD_FORMAT_XYZW_IDXEN $tlst, $buf_idx_vgpr, imm:$attr_offset)
+ (BUFFER_LOAD_FORMAT_XYZW_IDXEN $tlst, $buf_idx_vgpr, imm:$attr_offset, 0, 0, 0, 0)
>;
/* int_SI_export */
@@ -1809,7 +1821,7 @@ def : Pat <
// 3. Offset in an 32Bit VGPR
def : Pat <
(SIload_constant i128:$sbase, i32:$voff),
- (BUFFER_LOAD_DWORD_OFFEN $sbase, $voff)
+ (BUFFER_LOAD_DWORD_OFFEN $sbase, $voff, 0, 0, 0, 0)
>;
// The multiplication scales from [0,1] to the unsigned integer range
@@ -1970,6 +1982,50 @@ defm : MUBUFStore_Pattern <BUFFER_STORE_DWORDX2, i64, global_store>;
defm : MUBUFStore_Pattern <BUFFER_STORE_DWORDX2, v2i32, global_store>;
defm : MUBUFStore_Pattern <BUFFER_STORE_DWORDX4, v4i32, global_store>;
+// BUFFER_LOAD_DWORD*, addr64=0
+multiclass MUBUF_Load_Dword <ValueType vt, MUBUF offset, MUBUF offen, MUBUF idxen,
+ MUBUF bothen> {
+
+ def : Pat <
+ (vt (int_SI_buffer_load_dword i128:$rsrc, i32:$vaddr, i32:$soffset,
+ imm:$offset, 0, 0, imm:$glc, imm:$slc,
+ imm:$tfe)),
+ (offset $rsrc, $vaddr, (as_i16imm $offset), $soffset, (as_i1imm $glc),
+ (as_i1imm $slc), (as_i1imm $tfe))
+ >;
+
+ def : Pat <
+ (vt (int_SI_buffer_load_dword i128:$rsrc, i32:$vaddr, i32:$soffset,
+ imm, 1, 0, imm:$glc, imm:$slc,
+ imm:$tfe)),
+ (offen $rsrc, $vaddr, $soffset, (as_i1imm $glc), (as_i1imm $slc),
+ (as_i1imm $tfe))
+ >;
+
+ def : Pat <
+ (vt (int_SI_buffer_load_dword i128:$rsrc, i32:$vaddr, i32:$soffset,
+ imm:$offset, 0, 1, imm:$glc, imm:$slc,
+ imm:$tfe)),
+ (idxen $rsrc, $vaddr, (as_i16imm $offset), $soffset, (as_i1imm $glc),
+ (as_i1imm $slc), (as_i1imm $tfe))
+ >;
+
+ def : Pat <
+ (vt (int_SI_buffer_load_dword i128:$rsrc, v2i32:$vaddr, i32:$soffset,
+ imm, 1, 1, imm:$glc, imm:$slc,
+ imm:$tfe)),
+ (bothen $rsrc, $vaddr, $soffset, (as_i1imm $glc), (as_i1imm $slc),
+ (as_i1imm $tfe))
+ >;
+}
+
+defm : MUBUF_Load_Dword <i32, BUFFER_LOAD_DWORD_OFFSET, BUFFER_LOAD_DWORD_OFFEN,
+ BUFFER_LOAD_DWORD_IDXEN, BUFFER_LOAD_DWORD_BOTHEN>;
+defm : MUBUF_Load_Dword <v2i32, BUFFER_LOAD_DWORDX2_OFFSET, BUFFER_LOAD_DWORDX2_OFFEN,
+ BUFFER_LOAD_DWORDX2_IDXEN, BUFFER_LOAD_DWORDX2_BOTHEN>;
+defm : MUBUF_Load_Dword <v4i32, BUFFER_LOAD_DWORDX4_OFFSET, BUFFER_LOAD_DWORDX4_OFFEN,
+ BUFFER_LOAD_DWORDX4_IDXEN, BUFFER_LOAD_DWORDX4_BOTHEN>;
+
//===----------------------------------------------------------------------===//
// MTBUF Patterns
//===----------------------------------------------------------------------===//
diff --git a/lib/Target/R600/SIIntrinsics.td b/lib/Target/R600/SIIntrinsics.td
index 7fcc964..00e32c0 100644
--- a/lib/Target/R600/SIIntrinsics.td
+++ b/lib/Target/R600/SIIntrinsics.td
@@ -38,6 +38,22 @@ let TargetPrefix = "SI", isTarget = 1 in {
llvm_i32_ty], // tfe(imm)
[]>;
+ // Fully-flexible BUFFER_LOAD_DWORD_* except for the ADDR64 bit, which is not exposed
+ def int_SI_buffer_load_dword : Intrinsic <
+ [llvm_anyint_ty], // vdata(VGPR), overloaded for types i32, v2i32, v4i32
+ [llvm_anyint_ty, // rsrc(SGPR)
+ llvm_anyint_ty, // vaddr(VGPR)
+ llvm_i32_ty, // soffset(SGPR)
+ llvm_i32_ty, // inst_offset(imm)
+ llvm_i32_ty, // offen(imm)
+ llvm_i32_ty, // idxen(imm)
+ llvm_i32_ty, // glc(imm)
+ llvm_i32_ty, // slc(imm)
+ llvm_i32_ty], // tfe(imm)
+ [IntrReadArgMem]>;
+
+ 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;
diff --git a/lib/Target/R600/SILowerControlFlow.cpp b/lib/Target/R600/SILowerControlFlow.cpp
index 958763d..254f3a6 100644
--- a/lib/Target/R600/SILowerControlFlow.cpp
+++ b/lib/Target/R600/SILowerControlFlow.cpp
@@ -55,6 +55,7 @@
#include "llvm/CodeGen/MachineFunctionPass.h"
#include "llvm/CodeGen/MachineInstrBuilder.h"
#include "llvm/CodeGen/MachineRegisterInfo.h"
+#include "llvm/IR/Constants.h"
using namespace llvm;
@@ -145,7 +146,9 @@ void SILowerControlFlowPass::SkipIfDead(MachineInstr &MI) {
MachineBasicBlock &MBB = *MI.getParent();
DebugLoc DL = MI.getDebugLoc();
- if (!shouldSkip(&MBB, &MBB.getParent()->back()))
+ if (MBB.getParent()->getInfo<SIMachineFunctionInfo>()->ShaderType !=
+ ShaderType::PIXEL ||
+ !shouldSkip(&MBB, &MBB.getParent()->back()))
return;
MachineBasicBlock::iterator Insert = &MI;
@@ -295,15 +298,27 @@ void SILowerControlFlowPass::Kill(MachineInstr &MI) {
MachineBasicBlock &MBB = *MI.getParent();
DebugLoc DL = MI.getDebugLoc();
+ const MachineOperand &Op = MI.getOperand(0);
- // Kill is only allowed in pixel shaders
+ // Kill is only allowed in pixel / geometry shaders
assert(MBB.getParent()->getInfo<SIMachineFunctionInfo>()->ShaderType ==
- ShaderType::PIXEL);
-
- // Clear this pixel from the exec mask if the operand is negative
- BuildMI(MBB, &MI, DL, TII->get(AMDGPU::V_CMPX_LE_F32_e32), AMDGPU::VCC)
- .addImm(0)
- .addOperand(MI.getOperand(0));
+ ShaderType::PIXEL ||
+ MBB.getParent()->getInfo<SIMachineFunctionInfo>()->ShaderType ==
+ ShaderType::GEOMETRY);
+
+ // Clear this thread from the exec mask if the operand is negative
+ if ((Op.isImm() || Op.isFPImm())) {
+ // Constant operand: Set exec mask to 0 or do nothing
+ if (Op.isImm() ? (Op.getImm() & 0x80000000) :
+ Op.getFPImm()->isNegative()) {
+ BuildMI(MBB, &MI, DL, TII->get(AMDGPU::S_MOV_B64), AMDGPU::EXEC)
+ .addImm(0);
+ }
+ } else {
+ BuildMI(MBB, &MI, DL, TII->get(AMDGPU::V_CMPX_LE_F32_e32), AMDGPU::VCC)
+ .addImm(0)
+ .addOperand(Op);
+ }
MI.eraseFromParent();
}
diff --git a/test/CodeGen/R600/llvm.AMDGPU.kill.ll b/test/CodeGen/R600/llvm.AMDGPU.kill.ll
new file mode 100644
index 0000000..4ab6a8a
--- /dev/null
+++ b/test/CodeGen/R600/llvm.AMDGPU.kill.ll
@@ -0,0 +1,22 @@
+; RUN: llc < %s -march=r600 -mcpu=verde -verify-machineinstrs | FileCheck --check-prefix=SI %s
+
+; SI-LABEL: @kill_gs_const
+; SI-NOT: V_CMPX_LE_F32
+; SI: S_MOV_B64 exec, 0
+
+define void @kill_gs_const() #0 {
+main_body:
+ %0 = icmp ule i32 0, 3
+ %1 = select i1 %0, float 1.000000e+00, float -1.000000e+00
+ call void @llvm.AMDGPU.kill(float %1)
+ %2 = icmp ule i32 3, 0
+ %3 = select i1 %2, float 1.000000e+00, float -1.000000e+00
+ call void @llvm.AMDGPU.kill(float %3)
+ ret void
+}
+
+declare void @llvm.AMDGPU.kill(float)
+
+attributes #0 = { "ShaderType"="2" }
+
+!0 = metadata !{metadata !"const", null, i32 1}
diff --git a/test/CodeGen/R600/llvm.SI.load.dword.ll b/test/CodeGen/R600/llvm.SI.load.dword.ll
new file mode 100644
index 0000000..a622775
--- /dev/null
+++ b/test/CodeGen/R600/llvm.SI.load.dword.ll
@@ -0,0 +1,40 @@
+;RUN: llc < %s -march=r600 -mcpu=verde -verify-machineinstrs | FileCheck %s
+
+; Example of a simple geometry shader loading vertex attributes from the
+; ESGS ring buffer
+
+; CHECK-LABEL: @main
+; CHECK: BUFFER_LOAD_DWORD
+; CHECK: BUFFER_LOAD_DWORD
+; CHECK: BUFFER_LOAD_DWORD
+; CHECK: BUFFER_LOAD_DWORD
+
+define void @main([17 x <16 x i8>] addrspace(2)* byval, [32 x <16 x i8>] addrspace(2)* byval, [16 x <32 x i8>] addrspace(2)* byval, [2 x <16 x i8>] addrspace(2)* byval, [17 x <16 x i8>] addrspace(2)* inreg, [17 x <16 x i8>] addrspace(2)* inreg, i32, i32, i32, i32) #0 {
+main_body:
+ %10 = getelementptr [2 x <16 x i8>] addrspace(2)* %3, i64 0, i32 1
+ %11 = load <16 x i8> addrspace(2)* %10, !tbaa !0
+ %12 = shl i32 %6, 2
+ %13 = call i32 @llvm.SI.buffer.load.dword.i32.i32(<16 x i8> %11, i32 0, i32 0, i32 0, i32 0, i32 0, i32 1, i32 1, i32 0)
+ %14 = bitcast i32 %13 to float
+ %15 = call i32 @llvm.SI.buffer.load.dword.i32.i32(<16 x i8> %11, i32 %12, i32 0, i32 0, i32 1, i32 0, i32 1, i32 1, i32 0)
+ %16 = bitcast i32 %15 to float
+ %17 = call i32 @llvm.SI.buffer.load.dword.i32.i32(<16 x i8> %11, i32 %12, i32 0, i32 0, i32 0, i32 1, i32 1, i32 1, i32 0)
+ %18 = bitcast i32 %17 to float
+ %19 = call i32 @llvm.SI.buffer.load.dword.i32.v2i32(<16 x i8> %11, <2 x i32> <i32 0, i32 0>, i32 0, i32 0, i32 1, i32 1, i32 1, i32 1, i32 0)
+ %20 = bitcast i32 %19 to float
+ call void @llvm.SI.export(i32 15, i32 0, i32 1, i32 12, i32 0, float %14, float %16, float %18, float %20)
+ ret void
+}
+
+; Function Attrs: nounwind readonly
+declare i32 @llvm.SI.buffer.load.dword.i32.i32(<16 x i8>, i32, i32, i32, i32, i32, i32, i32, i32) #1
+
+; Function Attrs: nounwind readonly
+declare i32 @llvm.SI.buffer.load.dword.i32.v2i32(<16 x i8>, <2 x i32>, i32, i32, i32, i32, i32, i32, i32) #1
+
+declare void @llvm.SI.export(i32, i32, i32, i32, i32, float, float, float, float)
+
+attributes #0 = { "ShaderType"="1" }
+attributes #1 = { nounwind readonly }
+
+!0 = metadata !{metadata !"const", null, i32 1}
diff --git a/test/CodeGen/R600/llvm.SI.sendmsg.ll b/test/CodeGen/R600/llvm.SI.sendmsg.ll
new file mode 100644
index 0000000..581d422
--- /dev/null
+++ b/test/CodeGen/R600/llvm.SI.sendmsg.ll
@@ -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 }