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[NVPTX] Add target options for PTX 3.2/4.0 and SM 5.0 (Maxwell)

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Default PTX version is set to PTX 3.2

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211929 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Justin Holewinski 2014-06-27 18:35:18 +00:00
parent aac29c0c22
commit 305dda4fc7
2 changed files with 11 additions and 7 deletions
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7
lib/Target/NVPTX/NVPTX.td
View File

@ -34,12 +34,18 @@ def SM30 : SubtargetFeature<"sm_30", "SmVersion", "30",
"Target SM 3.0">;
def SM35 : SubtargetFeature<"sm_35", "SmVersion", "35",
"Target SM 3.5">;
def SM50 : SubtargetFeature<"sm_50", "SmVersion", "50",
"Target SM 5.0">;
// PTX Versions
def PTX30 : SubtargetFeature<"ptx30", "PTXVersion", "30",
"Use PTX version 3.0">;
def PTX31 : SubtargetFeature<"ptx31", "PTXVersion", "31",
"Use PTX version 3.1">;
def PTX32 : SubtargetFeature<"ptx32", "PTXVersion", "32",
"Use PTX version 3.2">;
def PTX40 : SubtargetFeature<"ptx40", "PTXVersion", "40",
"Use PTX version 4.0">;
//===----------------------------------------------------------------------===//
// NVPTX supported processors.
@ -52,6 +58,7 @@ def : Proc<"sm_20", [SM20]>;
def : Proc<"sm_21", [SM21]>;
def : Proc<"sm_30", [SM30]>;
def : Proc<"sm_35", [SM35]>;
def : Proc<"sm_50", [SM50]>;
def NVPTXInstrInfo : InstrInfo {

11
lib/Target/NVPTX/NVPTXSubtarget.cpp
View File

@ -45,13 +45,10 @@ NVPTXSubtarget &NVPTXSubtarget::initializeSubtargetDependencies(StringRef CPU,
ParseSubtargetFeatures(TargetName, FS);
// We default to PTX 3.1, but we cannot just default to it in the initializer
// since the attribute parser checks if the given option is >= the default.
// So if we set ptx31 as the default, the ptx30 attribute would never match.
// Instead, we use 0 as the default and manually set 31 if the default is
// used.
if (PTXVersion == 0)
PTXVersion = 31;
// Set default to PTX 3.2 (CUDA 5.5)
if (PTXVersion == 0) {
PTXVersion = 32;
}
return *this;
}