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prepare to move stack manipulation out of CallEvent

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This commit is contained in:
Joshua Warner 2014-05-01 20:42:16 -06:00 committed by Joshua Warner
parent ae534bed5f
commit 9f36a8e0ec
1 changed files with 13 additions and 11 deletions
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24
src/codegen/compiler/event.cpp
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@ -386,6 +386,10 @@ class CallEvent: public Event {
Stack* stack = stackBefore;
if (callingConvention == ir::AvianCallingConvention) {
Stack* s2 = stack;
for (size_t i = 0; i < arguments.count; i++) {
s2 = s2->next;
}
for (int i = stackArgumentFootprint - 1; i >= 0; --i) {
Value* v = static_cast<Value*>(arguments[i]);
stack = stack->next;
@ -404,6 +408,8 @@ class CallEvent: public Event {
arguments[i] = v;
}
assert(c, s2 == stack);
int returnAddressIndex;
int framePointerIndex;
int frameOffset;
@ -492,6 +498,8 @@ class CallEvent: public Event {
virtual void compile(Context* c) {
lir::UnaryOperation op;
unsigned footprint = c->arch->argumentFootprint(stackArgumentFootprint);
if (TailCalls and (flags & Compiler::TailJump)) {
if (flags & Compiler::LongJumpOrCall) {
if (flags & Compiler::Aligned) {
@ -530,9 +538,9 @@ class CallEvent: public Event {
fps = lir::NoRegister;
}
int offset
= static_cast<int>(c->arch->argumentFootprint(stackArgumentFootprint))
- static_cast<int>(c->arch->argumentFootprint(c->parameterFootprint));
int offset = static_cast<int>(footprint)
- static_cast<int>(
c->arch->argumentFootprint(c->parameterFootprint));
c->assembler->popFrameForTailCall(c->alignedFrameSize, offset, ras, fps);
} else if (flags & Compiler::LongJumpOrCall) {
@ -563,14 +571,8 @@ class CallEvent: public Event {
if (framePointerSurrogate) {
framePointerSurrogate->source->thaw(c, framePointerSurrogate);
}
} else {
unsigned footprint = c->arch->argumentFootprint
(stackArgumentFootprint);
if (footprint > c->arch->stackAlignmentInWords()) {
c->assembler->adjustFrame
(footprint - c->arch->stackAlignmentInWords());
}
} else if (footprint > c->arch->stackAlignmentInWords()) {
c->assembler->adjustFrame(footprint - c->arch->stackAlignmentInWords());
}
}