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Decouple fsqrt from gpul optimizations, implementing fsqrt.ll.

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Remove the -enable-gpopt option which is subsumed by feature flags.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23218 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2005-09-02 18:33:05 +00:00
parent 446a4eaee5
commit 1e9de3ed2d
3 changed files with 8 additions and 8 deletions
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2
lib/Target/PowerPC/PPCISelLowering.cpp
View File

@ -54,7 +54,7 @@ PPC32TargetLowering::PPC32TargetLowering(TargetMachine &TM)
setOperationAction(ISD::SREM , MVT::f32, Expand); setOperationAction(ISD::SREM , MVT::f32, Expand);
// If we're enabling GP optimizations, use hardware square root // If we're enabling GP optimizations, use hardware square root
if (!TM.getSubtarget<PPCSubtarget>().isGigaProcessor()) { if (!TM.getSubtarget<PPCSubtarget>().hasFSQRT()) {
setOperationAction(ISD::FSQRT, MVT::f64, Expand); setOperationAction(ISD::FSQRT, MVT::f64, Expand);
setOperationAction(ISD::FSQRT, MVT::f32, Expand); setOperationAction(ISD::FSQRT, MVT::f32, Expand);
} }

11
lib/Target/PowerPC/PPCSubtarget.cpp
View File

@ -25,11 +25,10 @@ namespace llvm {
PPCTargetArg(cl::desc("Force generation of code for a specific PPC target:"), PPCTargetArg(cl::desc("Force generation of code for a specific PPC target:"),
cl::values( cl::values(
clEnumValN(TargetAIX, "aix", " Enable AIX codegen"), clEnumValN(TargetAIX, "aix", " Enable AIX codegen"),
clEnumValN(TargetDarwin,"darwin"," Enable Darwin codegen"), clEnumValN(TargetDarwin,"darwin",
" Enable Darwin codegen"),
clEnumValEnd), clEnumValEnd),
cl::location(PPCTarget), cl::init(TargetDefault)); cl::location(PPCTarget), cl::init(TargetDefault));
cl::opt<bool> EnableGPOPT("enable-gpopt", cl::Hidden,
cl::desc("Enable optimizations for GP cpus"));
} }
enum PowerPCFeature { enum PowerPCFeature {
@ -126,7 +125,8 @@ PPCSubtarget::PPCSubtarget(const Module &M, const std::string &FS)
SubtargetFeatures::Parse(FS, CPU, SubtargetFeatures::Parse(FS, CPU,
PowerPCSubTypeKV, PowerPCSubTypeKVSize, PowerPCSubTypeKV, PowerPCSubTypeKVSize,
PowerPCFeatureKV, PowerPCFeatureKVSize); PowerPCFeatureKV, PowerPCFeatureKVSize);
IsGigaProcessor = (Bits & PowerPCFeatureGPUL) != 0; IsGigaProcessor = (Bits & PowerPCFeatureGPUL ) != 0;
HasFSQRT = (Bits & PowerPCFeatureFSqrt) != 0;
// Set the boolean corresponding to the current target triple, or the default // Set the boolean corresponding to the current target triple, or the default
// if one cannot be determined, to true. // if one cannot be determined, to true.
@ -140,7 +140,4 @@ PPCSubtarget::PPCSubtarget(const Module &M, const std::string &FS)
IsDarwin = true; IsDarwin = true;
#endif #endif
} }
// If GP opts are forced on by the commandline, do so now.
if (EnableGPOPT) IsGigaProcessor = true;
} }

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

@ -29,6 +29,7 @@ protected:
/// Used by the ISel to turn in optimizations for POWER4-derived architectures /// Used by the ISel to turn in optimizations for POWER4-derived architectures
bool IsGigaProcessor; bool IsGigaProcessor;
bool HasFSQRT;
bool IsAIX; bool IsAIX;
bool IsDarwin; bool IsDarwin;
public: public:
@ -42,6 +43,8 @@ public:
/// function for this subtarget. /// function for this subtarget.
unsigned getStackAlignment() const { return StackAlignment; } unsigned getStackAlignment() const { return StackAlignment; }
bool hasFSQRT() const { return HasFSQRT; }
bool isAIX() const { return IsAIX; } bool isAIX() const { return IsAIX; }
bool isDarwin() const { return IsDarwin; } bool isDarwin() const { return IsDarwin; }