6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2024-12-14 11:32:34 +00:00
Code Issues Projects Releases Wiki Activity

Save the optimization level the subtarget was created with in a

Browse Source 
member variable and sink the initialization of crbits into the
subtarget feature reset code.

No functional change, but this refactor will be used in a future
commit.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@208726 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Eric Christopher 2014-05-13 20:49:08 +00:00
parent e02c34ba2a
commit 7d87049ef1
2 changed files with 14 additions and 15 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

26
lib/Target/PowerPC/PPCSubtarget.cpp
View File

@ -35,22 +35,10 @@ using namespace llvm;
PPCSubtarget::PPCSubtarget(const std::string &TT, const std::string &CPU,
const std::string &FS, bool is64Bit,
CodeGenOpt::Level OptLevel)
: PPCGenSubtargetInfo(TT, CPU, FS)
, IsPPC64(is64Bit)
, TargetTriple(TT) {
: PPCGenSubtargetInfo(TT, CPU, FS), IsPPC64(is64Bit), TargetTriple(TT),
OptLevel(OptLevel) {
initializeEnvironment();
std::string FullFS = FS;
// At -O2 and above, track CR bits as individual registers.
if (OptLevel >= CodeGenOpt::Default) {
if (!FullFS.empty())
FullFS = "+crbits," + FullFS;
else
FullFS = "+crbits";
}
resetSubtargetFeatures(CPU, FullFS);
resetSubtargetFeatures(CPU, FS);
}
/// SetJITMode - This is called to inform the subtarget info that we are
@ -140,6 +128,14 @@ void PPCSubtarget::resetSubtargetFeatures(StringRef CPU, StringRef FS) {
FullFS = "+64bit";
}
// At -O2 and above, track CR bits as individual registers.
if (OptLevel >= CodeGenOpt::Default) {
if (!FullFS.empty())
FullFS = "+crbits," + FullFS;
else
FullFS = "+crbits";
}
// Parse features string.
ParseSubtargetFeatures(CPUName, FullFS);

3
lib/Target/PowerPC/PPCSubtarget.h
View File

@ -99,6 +99,9 @@ protected:
/// TargetTriple - What processor and OS we're targeting.
Triple TargetTriple;
/// OptLevel - What default optimization level we're emitting code for.
CodeGenOpt::Level OptLevel;
public:
/// This constructor initializes the data members to match that
/// of the specified triple.