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authorDimitry Andric <dim@FreeBSD.org>2015-06-09 19:06:30 +0000
committerDimitry Andric <dim@FreeBSD.org>2015-06-09 19:06:30 +0000
commit85d8b2bbe386bcfe669575d05b61482d7be07e5d (patch)
tree1dc5e75ab222a9ead44c699eceafab7a6ca7b310 /lib/Target/NVPTX/NVPTXTargetMachine.cpp
parent5a5ac124e1efaf208671f01c46edb15f29ed2a0b (diff)
Notes
Diffstat (limited to 'lib/Target/NVPTX/NVPTXTargetMachine.cpp')
-rw-r--r--lib/Target/NVPTX/NVPTXTargetMachine.cpp13
1 files changed, 11 insertions, 2 deletions
diff --git a/lib/Target/NVPTX/NVPTXTargetMachine.cpp b/lib/Target/NVPTX/NVPTXTargetMachine.cpp
index ac27c30aabab..a6466687bc7b 100644
--- a/lib/Target/NVPTX/NVPTXTargetMachine.cpp
+++ b/lib/Target/NVPTX/NVPTXTargetMachine.cpp
@@ -53,7 +53,7 @@ void initializeGenericToNVVMPass(PassRegistry&);
void initializeNVPTXAllocaHoistingPass(PassRegistry &);
void initializeNVPTXAssignValidGlobalNamesPass(PassRegistry&);
void initializeNVPTXFavorNonGenericAddrSpacesPass(PassRegistry &);
-void initializeNVPTXLowerStructArgsPass(PassRegistry &);
+void initializeNVPTXLowerKernelArgsPass(PassRegistry &);
}
extern "C" void LLVMInitializeNVPTXTarget() {
@@ -69,7 +69,7 @@ extern "C" void LLVMInitializeNVPTXTarget() {
initializeNVPTXAssignValidGlobalNamesPass(*PassRegistry::getPassRegistry());
initializeNVPTXFavorNonGenericAddrSpacesPass(
*PassRegistry::getPassRegistry());
- initializeNVPTXLowerStructArgsPass(*PassRegistry::getPassRegistry());
+ initializeNVPTXLowerKernelArgsPass(*PassRegistry::getPassRegistry());
}
static std::string computeDataLayout(bool is64Bit) {
@@ -163,7 +163,13 @@ void NVPTXPassConfig::addIRPasses() {
TargetPassConfig::addIRPasses();
addPass(createNVPTXAssignValidGlobalNamesPass());
addPass(createGenericToNVVMPass());
+ addPass(createNVPTXLowerKernelArgsPass(&getNVPTXTargetMachine()));
addPass(createNVPTXFavorNonGenericAddrSpacesPass());
+ // NVPTXLowerKernelArgs emits alloca for byval parameters which can often
+ // be eliminated by SROA. We do not run SROA right after NVPTXLowerKernelArgs
+ // because we plan to merge NVPTXLowerKernelArgs and
+ // NVPTXFavorNonGenericAddrSpaces into one pass.
+ addPass(createSROAPass());
// FavorNonGenericAddrSpaces shortcuts unnecessary addrspacecasts, and leave
// them unused. We could remove dead code in an ad-hoc manner, but that
// requires manual work and might be error-prone.
@@ -181,6 +187,9 @@ void NVPTXPassConfig::addIRPasses() {
addPass(createEarlyCSEPass());
// Run NaryReassociate after EarlyCSE/GVN to be more effective.
addPass(createNaryReassociatePass());
+ // NaryReassociate on GEPs creates redundant common expressions, so run
+ // EarlyCSE after it.
+ addPass(createEarlyCSEPass());
}
bool NVPTXPassConfig::addInstSelector() {