Revert "[PeepholeOptimizer] Look through PHIs to find additional register sources"

[oota-llvm.git] / include / llvm / Target / TargetCallingConv.td

diff --git a/include/llvm/Target/TargetCallingConv.td b/include/llvm/Target/TargetCallingConv.td
index 908e16ed5e78ee655ed608d59ba59924e7bc7952..2e766c448b34a7a44f5f411ce75a0b57cf0b3b10 100644 (file)
--- a/include/llvm/Target/TargetCallingConv.td
+++ b/include/llvm/Target/TargetCallingConv.td
@@ -15,6 +15,11 @@
 class CCAction;
 class CallingConv;
 
+/// CCCustom - Calls a custom arg handling function.
+class CCCustom<string fn> : CCAction {
+  string FuncName = fn;
+}
+
 /// CCPredicateAction - Instances of this class check some predicate, then
 /// delegate to another action if the predicate is true.
 class CCPredicateAction<CCAction A> : CCAction {
@@ -37,7 +42,12 @@ class CCIf<string predicate, CCAction A> : CCPredicateAction<A> {
 class CCIfByVal<CCAction A> : CCIf<"ArgFlags.isByVal()", A> {
 }
 
-/// CCIfCC - Match of the current calling convention is 'CC'.
+/// CCIfConsecutiveRegs - If the current argument has InConsecutiveRegs
+/// parameter attribute, apply Action A.
+class CCIfConsecutiveRegs<CCAction A> : CCIf<"ArgFlags.isInConsecutiveRegs()", A> {
+}
+
+/// CCIfCC - Match if the current calling convention is 'CC'.
 class CCIfCC<string CC, CCAction A>
   : CCIf<!strconcat("State.getCallingConv() == ", CC), A> {}
 
@@ -49,6 +59,17 @@ class CCIfInReg<CCAction A> : CCIf<"ArgFlags.isInReg()", A> {}
 /// the specified action.
 class CCIfNest<CCAction A> : CCIf<"ArgFlags.isNest()", A> {}
 
+/// CCIfSplit - If this argument is marked with the 'split' attribute, apply
+/// the specified action.
+class CCIfSplit<CCAction A> : CCIf<"ArgFlags.isSplit()", A> {}
+
+/// CCIfSRet - If this argument is marked with the 'sret' attribute, apply
+/// the specified action.
+class CCIfSRet<CCAction A> : CCIf<"ArgFlags.isSRet()", A> {}
+
+/// CCIfVarArg - If the current function is vararg - apply the action
+class CCIfVarArg<CCAction A> : CCIf<"State.isVarArg()", A> {}
+
 /// CCIfNotVarArg - If the current function is not vararg - apply the action
 class CCIfNotVarArg<CCAction A> : CCIf<"!State.isVarArg()", A> {}
 
@@ -76,6 +97,17 @@ class CCAssignToStack<int size, int align> : CCAction {
   int Align = align;
 }
 
+/// CCAssignToStackWithShadow - Same as CCAssignToStack, but with a list of
+/// registers to be shadowed. Note that, unlike CCAssignToRegWithShadow, this
+/// shadows ALL of the registers in shadowList.
+class CCAssignToStackWithShadow<int size,
+                                int align,
+                                list<Register> shadowList> : CCAction {
+  int Size = size;
+  int Align = align;
+  list<Register> ShadowRegList = shadowList;
+}
+
 /// CCPassByVal - This action always matches: it assigns the value to a stack
 /// slot to implement ByVal aggregate parameter passing. Size and alignment
 /// specify the minimum size and alignment for the stack slot.
@@ -90,6 +122,24 @@ class CCPromoteToType<ValueType destTy> : CCAction {
   ValueType DestTy = destTy;
 }
 
+/// CCPromoteToUpperBitsInType - If applied, this promotes the specified current
+/// value to the specified type and shifts the value into the upper bits.
+class CCPromoteToUpperBitsInType<ValueType destTy> : CCAction {
+  ValueType DestTy = destTy;
+}
+
+/// CCBitConvertToType - If applied, this bitconverts the specified current
+/// value to the specified type.
+class CCBitConvertToType<ValueType destTy> : CCAction {
+  ValueType DestTy = destTy;
+}
+
+/// CCPassIndirect - If applied, this stores the value to stack and passes the pointer
+/// as normal argument.
+class CCPassIndirect<ValueType destTy> : CCAction {
+  ValueType DestTy = destTy;
+}
+
 /// CCDelegateTo - This action invokes the specified sub-calling-convention.  It
 /// is successful if the specified CC matches.
 class CCDelegateTo<CallingConv cc> : CCAction {
@@ -100,4 +150,28 @@ class CCDelegateTo<CallingConv cc> : CCAction {
 /// that the target supports.
 class CallingConv<list<CCAction> actions> {
   list<CCAction> Actions = actions;
+  bit Custom = 0;
+}
+
+/// CustomCallingConv - An instance of this is used to declare calling
+/// conventions that are implemented using a custom function of the same name.
+class CustomCallingConv : CallingConv<[]> {
+  let Custom = 1;
+}
+
+/// CalleeSavedRegs - A list of callee saved registers for a given calling
+/// convention.  The order of registers is used by PrologEpilogInsertion when
+/// allocation stack slots for saved registers.
+///
+/// For each CalleeSavedRegs def, TableGen will emit a FOO_SaveList array for
+/// returning from getCalleeSavedRegs(), and a FOO_RegMask bit mask suitable for
+/// returning from getCallPreservedMask().
+class CalleeSavedRegs<dag saves> {
+  dag SaveList = saves;
+
+  // Registers that are also preserved across function calls, but should not be
+  // included in the generated FOO_SaveList array. These registers will be
+  // included in the FOO_RegMask bit mask. This can be used for registers that
+  // are saved automatically, like the SPARC register windows.
+  dag OtherPreserved;
 }