[JSC] Add ceil() support for x86 and expose it to B3
https://bugs.webkit.org/show_bug.cgi?id=152231
Patch by Benjamin Poulain <bpoulain@apple.com> on 2015-12-14
Reviewed by Geoffrey Garen.
Most x86 CPUs we care about support ceil() natively
with the round instruction.
This patch expose that behind a runtime flag, use it
in the Math.ceil() thunk and expose it to B3.
* assembler/MacroAssemblerARM64.h:
(JSC::MacroAssemblerARM64::supportsFloatingPointCeil):
* assembler/MacroAssemblerARMv7.h:
(JSC::MacroAssemblerARMv7::supportsFloatingPointCeil):
* assembler/MacroAssemblerMIPS.h:
(JSC::MacroAssemblerMIPS::supportsFloatingPointCeil):
* assembler/MacroAssemblerSH4.h:
(JSC::MacroAssemblerSH4::supportsFloatingPointCeil):
* assembler/MacroAssemblerX86Common.cpp:
* assembler/MacroAssemblerX86Common.h:
(JSC::MacroAssemblerX86Common::ceilDouble):
(JSC::MacroAssemblerX86Common::ceilFloat):
(JSC::MacroAssemblerX86Common::supportsFloatingPointCeil):
(JSC::MacroAssemblerX86Common::supportsLZCNT):
* assembler/X86Assembler.h:
(JSC::X86Assembler::roundss_rr):
(JSC::X86Assembler::roundss_mr):
(JSC::X86Assembler::roundsd_rr):
(JSC::X86Assembler::roundsd_mr):
(JSC::X86Assembler::mfence):
(JSC::X86Assembler::X86InstructionFormatter::threeByteOp):
* b3/B3ConstDoubleValue.cpp:
(JSC::B3::ConstDoubleValue::ceilConstant):
* b3/B3ConstDoubleValue.h:
* b3/B3ConstFloatValue.cpp:
(JSC::B3::ConstFloatValue::ceilConstant):
* b3/B3ConstFloatValue.h:
* b3/B3LowerMacrosAfterOptimizations.cpp:
* b3/B3LowerToAir.cpp:
(JSC::B3::Air::LowerToAir::lower):
* b3/B3Opcode.cpp:
(WTF::printInternal):
* b3/B3Opcode.h:
* b3/B3ReduceDoubleToFloat.cpp:
* b3/B3ReduceStrength.cpp:
* b3/B3Validate.cpp:
* b3/B3Value.cpp:
(JSC::B3::Value::ceilConstant):
(JSC::B3::Value::effects):
(JSC::B3::Value::key):
(JSC::B3::Value::typeFor):
* b3/B3Value.h:
* b3/air/AirOpcode.opcodes:
* b3/testb3.cpp:
(JSC::B3::testCeilArg):
(JSC::B3::testCeilImm):
(JSC::B3::testCeilMem):
(JSC::B3::testCeilCeilArg):
(JSC::B3::testCeilIToD64):
(JSC::B3::testCeilIToD32):
(JSC::B3::testCeilArgWithUselessDoubleConversion):
(JSC::B3::testCeilArgWithEffectfulDoubleConversion):
(JSC::B3::populateWithInterestingValues):
(JSC::B3::run):
* ftl/FTLB3Output.h:
(JSC::FTL::Output::ceil64):
* jit/ThunkGenerators.cpp:
(JSC::ceilThunkGenerator):
git-svn-id: http://svn.webkit.org/repository/webkit/trunk@194062 268f45cc-cd09-0410-ab3c-d52691b4dbfc
diff --git a/Source/JavaScriptCore/b3/B3ConstFloatValue.h b/Source/JavaScriptCore/b3/B3ConstFloatValue.h
index dc38be3..9f99cb2 100644
--- a/Source/JavaScriptCore/b3/B3ConstFloatValue.h
+++ b/Source/JavaScriptCore/b3/B3ConstFloatValue.h
@@ -50,6 +50,7 @@
Value* bitwiseCastConstant(Procedure&) const override;
Value* floatToDoubleConstant(Procedure&) const override;
Value* absConstant(Procedure&) const override;
+ Value* ceilConstant(Procedure&) const override;
Value* sqrtConstant(Procedure&) const override;
TriState equalConstant(const Value* other) const override;
