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fill in some holes

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34658 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2007-02-27 05:51:05 +00:00
parent 9774c915f1
commit d50110d8dc
1 changed files with 33 additions and 7 deletions
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40
lib/Target/X86/X86CallingConv.td
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@ -12,21 +12,30 @@
//
//===----------------------------------------------------------------------===//
class CCAction;
class CallingConv;
/// CCPredicateAction - Instances of this class check some predicate, then
/// delegate to another action if the predicate is true.
class CCPredicateAction<CCAction A> : CCAction {
CCAction SubAction = A;
}
/// CCMatchType - If the current argument is one of the specified types, apply
/// Action A.
class CCMatchType<list<ValueType> VTs, CCAction A> : CCAction {
class CCMatchType<list<ValueType> VTs, CCAction A> : CCPredicateAction<A> {
}
/// CCMatchIf - If the predicate matches, apply A.
class CCMatchIf<string predicate, CCAction A> : CCAction {
class CCMatchIf<string predicate, CCAction A> : CCPredicateAction<A> {
string Predicate = predicate;
}
/// CCMatchIfCC - Match of the current calling convention is 'CC'.
class CCMatchIfCC<string CC, CCAction A> : CCPredicateAction<A> {
string CallingConv = CC;
}
/// CCAssignToReg - This action matches if there is a register in the specified
/// list that is still available. If so, it assigns the value to the first
/// available register and succeeds.
@ -42,7 +51,6 @@ class CCAssignToStack<int size, int align> : CCAction {
}
/// CCPromoteToType - If applied, this promotes the specified current value to
/// the specified type.
class CCPromoteToType<ValueType destTy> : CCAction {
@ -64,6 +72,7 @@ class CallingConv<list<CCAction> actions> {
// Return Value Calling Conventions
//===----------------------------------------------------------------------===//
// Return-value conventions common to all X86 CC's.
def RetCC_X86Common : CallingConv<[
// Scalar values are returned in AX first, then DX.
CCMatchType<[i8] , CCAssignToReg<[AL]>>,
@ -76,7 +85,7 @@ def RetCC_X86Common : CallingConv<[
CCMatchType<[v16i8, v8i16, v4i32, v2i64, v4f32, v2f64], CCAssignToReg<[XMM0]>>
]>;
// Return conventions for the X86-32 C calling convention.
// X86-32 C return-value convention.
def RetCC_X86_32_C : CallingConv<[
// The X86-32 calling convention returns FP values in ST0, otherwise it is the
// same as the common X86 calling conv.
@ -85,7 +94,7 @@ def RetCC_X86_32_C : CallingConv<[
CCDelegateTo<RetCC_X86Common>
]>;
// Return conventions for the X86-32 Fast calling convention.
// X86-32 FastCC return-value convention.
def RetCC_X86_32_Fast : CallingConv<[
// The X86-32 fastcc returns FP values in XMM0 if the target has SSE2,
// otherwise it is the the C calling conventions.
@ -94,7 +103,7 @@ def RetCC_X86_32_Fast : CallingConv<[
CCDelegateTo<RetCC_X86Common>
]>;
// Return conventions for the X86-64 C calling convention.
// X86-64 C return-value convention.
def RetCC_X86_64_C : CallingConv<[
// The X86-64 calling convention always returns FP values in XMM0.
CCMatchType<[f32], CCAssignToReg<[XMM0]>>,
@ -103,6 +112,23 @@ def RetCC_X86_64_C : CallingConv<[
]>;
// This is the root return-value convention for the X86-32 backend.
def RetCC_X86_32 : CallingConv<[
// If FastCC, use RetCC_X86_32_Fast.
CCMatchIfCC<"CallingConv::Fast", CCDelegateTo<RetCC_X86_32_Fast>>,
// Otherwise, use RetCC_X86_32_C.
CCDelegateTo<RetCC_X86_32_C>
]>;
// This is the root return-value convention for the X86-64 backend.
def RetCC_X86_64 : CallingConv<[
// Always just the same as C calling conv for X86-64.
CCDelegateTo<RetCC_X86_64_C>
]>;
//===----------------------------------------------------------------------===//
// Argument Calling Conventions
//===----------------------------------------------------------------------===//