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Implemented basic register allocation.

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Mainly handles 'virtual' registers at the moment (eg current and last PC values, segment override status, etc).
This commit is contained in:
SarahW 2018-06-23 19:04:36 +01:00
commit ee3f9210dc
23 changed files with 776 additions and 76 deletions
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14
src/codegen_ir.c
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@ -2,6 +2,7 @@
#include "codegen.h"
#include "codegen_backend.h"
#include "codegen_ir.h"
#include "codegen_reg.h"
static ir_data_t ir_block;
@ -25,10 +26,21 @@ void codegen_ir_compile(ir_data_t *ir, codeblock_t *block)
//pclog("uOP %i : %08x\n", c, uop->type);
if (uop->type & UOP_TYPE_PARAMS_REGS)
{
if (uop->dest_reg_a.reg != IREG_INVALID)
{
uop->dest_reg_a_real = codegen_reg_alloc_write_reg(block, uop->dest_reg_a);
}
}
if (uop->type & UOP_TYPE_BARRIER)
codegen_reg_flush(ir, block);
uop_handlers[uop->type & UOP_MASK](block, uop);
}
codegen_backend_epilogue(block);
// fatal("IR compilation complete\n");
//fatal("IR compilation complete\n");
}