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fixed ISPCSync functionality

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This commit is contained in:
Evghenii
2013-11-13 11:19:10 +01:00
parent 55bf0d23c2
commit 268be7f0b5
3 changed files with 33 additions and 19 deletions
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3
builtins/target-nvptx64.ll
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@@ -102,7 +102,8 @@ define i32 @__lanemask_lt() nounwind readnone alwaysinline
define i8* @ISPCAlloc(i8**, i64, i32) nounwind alwaysinline
{
ret i8* null
%ptr = inttoptr i64 1 to i8*
ret i8* %ptr
}
;; this call allocate parameter buffer for kernel launch

48
ctx.cpp
View File

@@ -3673,29 +3673,43 @@ FunctionEmitContext::LaunchInst(llvm::Value *callee,
void
FunctionEmitContext::SyncInst() {
llvm::Value *launchGroupHandle = LoadInst(launchGroupHandlePtr);
llvm::Value *nullPtrValue =
if (!g->target->isPTX())
{
llvm::Value *launchGroupHandle = LoadInst(launchGroupHandlePtr);
llvm::Value *nullPtrValue =
llvm::Constant::getNullValue(LLVMTypes::VoidPointerType);
llvm::Value *nonNull = CmpInst(llvm::Instruction::ICmp,
llvm::CmpInst::ICMP_NE,
launchGroupHandle, nullPtrValue);
llvm::BasicBlock *bSync = CreateBasicBlock("call_sync");
llvm::BasicBlock *bPostSync = CreateBasicBlock("post_sync");
BranchInst(bSync, bPostSync, nonNull);
llvm::Value *nonNull = CmpInst(llvm::Instruction::ICmp,
llvm::CmpInst::ICMP_NE,
launchGroupHandle, nullPtrValue);
llvm::BasicBlock *bSync = CreateBasicBlock("call_sync");
llvm::BasicBlock *bPostSync = CreateBasicBlock("post_sync");
BranchInst(bSync, bPostSync, nonNull);
SetCurrentBasicBlock(bSync);
llvm::Function *fsync = m->module->getFunction("ISPCSync");
if (fsync == NULL)
SetCurrentBasicBlock(bSync);
llvm::Function *fsync = m->module->getFunction("ISPCSync");
if (fsync == NULL)
FATAL("Couldn't find ISPCSync declaration?!");
CallInst(fsync, NULL, launchGroupHandle, "");
CallInst(fsync, NULL, launchGroupHandle, "");
// zero out the handle so that if ISPCLaunch is called again in this
// function, it knows it's starting out from scratch
StoreInst(nullPtrValue, launchGroupHandlePtr);
// zero out the handle so that if ISPCLaunch is called again in this
// function, it knows it's starting out from scratch
StoreInst(nullPtrValue, launchGroupHandlePtr);
BranchInst(bPostSync);
BranchInst(bPostSync);
SetCurrentBasicBlock(bPostSync);
SetCurrentBasicBlock(bPostSync);
}
else
{
llvm::Value *launchGroupHandle = LoadInst(launchGroupHandlePtr);
llvm::Value *nullPtrValue =
llvm::Constant::getNullValue(LLVMTypes::VoidPointerType);
llvm::Function *fsync = m->module->getFunction("ISPCSync");
if (fsync == NULL)
FATAL("Couldn't find ISPCSync declaration?!");
CallInst(fsync, NULL, launchGroupHandle, "");
StoreInst(nullPtrValue, launchGroupHandlePtr);
}
}

1
examples_cuda/aobench/ao1.ispc
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@@ -313,5 +313,4 @@ export void ao_ispc_tasks(uniform int w, uniform int h, uniform int nsubsamples,
const uniform int ntilex = (w+TILEX-1)/TILEX;
const uniform int ntiley = (h+TILEY-1)/TILEY;
launch[ntilex,ntiley] ao_task(w, h, nsubsamples, image);
sync;
}