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Rename CCIfStruct to CCIfByVal and CCStructAssign to CCPassByVal. Remove unused parameters of CCStructAssign and add size and alignment requirement info.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45997 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Evan Cheng 2008-01-15 03:34:58 +00:00
parent bdfd5ef823
commit 6bfa8a121d
3 changed files with 17 additions and 13 deletions
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15
lib/Target/TargetCallingConv.td
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@ -32,9 +32,9 @@ class CCIf<string predicate, CCAction A> : CCPredicateAction<A> {
string Predicate = predicate; string Predicate = predicate;
} }
/// CCIfStruct - If the current argument is a struct, apply /// CCIfByVal - If the current argument has ByVal parameter attribute, apply
/// Action A. /// Action A.
class CCIfStruct<CCAction A> : CCIf<"ArgFlags & ISD::ParamFlags::ByVal", A> { class CCIfByVal<CCAction A> : CCIf<"ArgFlags & ISD::ParamFlags::ByVal", A> {
} }
/// CCIfCC - Match of the current calling convention is 'CC'. /// CCIfCC - Match of the current calling convention is 'CC'.
@ -68,11 +68,12 @@ class CCAssignToStack<int size, int align> : CCAction {
int Align = align; int Align = align;
} }
/// CCStructAssign - This action always matches: it will use the C ABI and /// CCPassByVal - This action always matches: it assigns the value to a stack
/// the register availability to decided whether to assign to a set of /// slot to implement ByVal aggregate parameter passing. Size and alignment
/// registers or to a stack slot. /// specify the minimum size and alignment for the stack slot.
class CCStructAssign<list<Register> regList> : CCAction { class CCPassByVal<int size, int align> : CCAction {
list<Register> RegList = regList; int Size = size;
int Align = align;
} }
/// CCPromoteToType - If applied, this promotes the specified current value to /// CCPromoteToType - If applied, this promotes the specified current value to

6
lib/Target/X86/X86CallingConv.td
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@ -97,7 +97,7 @@ def RetCC_X86 : CallingConv<[
def CC_X86_64_C : CallingConv<[ def CC_X86_64_C : CallingConv<[
// Handles byval parameters. // Handles byval parameters.
CCIfStruct<CCStructAssign<[]>>, CCIfByVal<CCPassByVal<8, 8>>,
// Promote i8/i16 arguments to i32. // Promote i8/i16 arguments to i32.
CCIfType<[i8, i16], CCPromoteToType<i32>>, CCIfType<[i8, i16], CCPromoteToType<i32>>,
@ -136,7 +136,7 @@ def CC_X86_64_C : CallingConv<[
// namely R9 // namely R9
def CC_X86_64_TailCall : CallingConv<[ def CC_X86_64_TailCall : CallingConv<[
// Handles byval parameters. // Handles byval parameters.
CCIfStruct<CCStructAssign<[]>>, CCIfByVal<CCPassByVal<8, 8>>,
// Promote i8/i16 arguments to i32. // Promote i8/i16 arguments to i32.
CCIfType<[i8, i16], CCPromoteToType<i32>>, CCIfType<[i8, i16], CCPromoteToType<i32>>,
@ -177,7 +177,7 @@ def CC_X86_64_TailCall : CallingConv<[
/// regs. /// regs.
def CC_X86_32_Common : CallingConv<[ def CC_X86_32_Common : CallingConv<[
// Handles byval parameters. // Handles byval parameters.
CCIfStruct<CCStructAssign<[]>>, CCIfByVal<CCPassByVal<4, 4>>,
// Integer/Float values get stored in stack slots that are 4 bytes in // Integer/Float values get stored in stack slots that are 4 bytes in
// size and 4-byte aligned. // size and 4-byte aligned.

9
utils/TableGen/CallingConvEmitter.cpp
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@ -140,9 +140,12 @@ void CallingConvEmitter::EmitAction(Record *Action,
<< IndentStr << IndentStr << "LocInfo = CCValAssign::ZExt;\n" << IndentStr << IndentStr << "LocInfo = CCValAssign::ZExt;\n"
<< IndentStr << "else\n" << IndentStr << "else\n"
<< IndentStr << IndentStr << "LocInfo = CCValAssign::AExt;\n"; << IndentStr << IndentStr << "LocInfo = CCValAssign::AExt;\n";
} else if (Action->isSubClassOf("CCStructAssign")) { } else if (Action->isSubClassOf("CCPassByVal")) {
O << IndentStr << int Size = Action->getValueAsInt("Size");
"State.HandleStruct(ValNo, ValVT, LocVT, LocInfo, ArgFlags);\n"; int Align = Action->getValueAsInt("Align");
O << IndentStr
<< "State.HandleByVal(ValNo, ValVT, LocVT, LocInfo, "
<< Size << ", " << Align << ", ArgFlags);\n";
O << IndentStr << "return false;\n"; O << IndentStr << "return false;\n";
} else { } else {
Action->dump(); Action->dump();