From c41e5b5ae1befe2c602d55de1dbc04d1914f4a6c Mon Sep 17 00:00:00 2001 From: buzbee Date: Fri, 23 Sep 2011 12:46:19 -0700 Subject: Add tables to map between callee saves and vregs Also added function to return sp-relative offset for Dalvik virtual registers using Method* [Note: must be matched with corresponding libcore change to reflect new field in Method] Change-Id: Id739908c6232ce60763d8199bc05111e960da46e --- src/compiler/codegen/arm/ArmRallocUtil.cc | 15 +++++++++++++++ 1 file changed, 15 insertions(+) (limited to 'src/compiler/codegen/arm/ArmRallocUtil.cc') diff --git a/src/compiler/codegen/arm/ArmRallocUtil.cc b/src/compiler/codegen/arm/ArmRallocUtil.cc index 030131f41c..0908c6d429 100644 --- a/src/compiler/codegen/arm/ArmRallocUtil.cc +++ b/src/compiler/codegen/arm/ArmRallocUtil.cc @@ -260,6 +260,21 @@ extern int oatVRegOffset(CompilationUnit* cUnit, int reg) cUnit->insOffset + ((reg - cUnit->numRegs) << 2); } +/* Return sp-relative offset in bytes using Method* */ +extern int oatVRegOffsetFromMethod(Method* method, int reg) +{ + int numIns = method->NumIns(); + int numRegs = method->NumRegisters() - numIns; + int numOuts = method->NumOuts(); + int numSpills = __builtin_popcount(method->GetCoreSpillMask()) + + __builtin_popcount(method->GetFpSpillMask()); + int numPadding = (STACK_ALIGN_WORDS - + (numSpills + numRegs + numOuts + 2)) & (STACK_ALIGN_WORDS-1); + int regsOffset = (numOuts + numPadding + 1) * 4; + int insOffset = method->GetFrameSizeInBytes() + 4; + return (reg < numRegs) ? regsOffset + (reg << 2) : + insOffset + ((reg - numRegs) << 2); +} /* Clobber all regs that might be used by an external C call */ extern void oatClobberCallRegs(CompilationUnit *cUnit) -- cgit v1.2.3-59-g8ed1b