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Code Issues 1 Releases Wiki Activity

Add source mapping to emitted C.

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This commit is contained in:
Calvin Rose 2023-07-16 16:08:28 -05:00
parent 4d7baef89e
commit 7cc176f0c0
1 changed files with 18 additions and 7 deletions
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25
src/core/sysir.c
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@ -21,13 +21,15 @@
*/
/* TODO
* - pointer math, pointer types
* - callk - allow linking to other named functions
* - composite types - support for load, store, move, and function args.
* Have some mechanism for field access (dest = src.offset)
* - support for stack allocation of arrays
* - more math intrinsics
* - better C interface for building up IR
* [ ] pointer math, pointer types
* [ ] callk - allow linking to other named functions
* [ ] composite types - support for load, store, move, and function args.
* [ ] Have some mechanism for field access (dest = src.offset)
* [ ] Related, move type creation as opcodes like in SPIRV - have separate virtual "type slots" and value slots for this.
* [ ] support for stack allocation of arrays
* [ ] more math intrinsics
* [ ] source mapping (using built in Janet source mapping metadata on tuples)
* [ ] better C interface for building up IR
*/
#ifndef JANET_AMALG
@ -226,6 +228,8 @@ typedef struct {
uint32_t constant;
} constant;
};
int32_t line;
int32_t column;
} JanetSysInstruction;
typedef struct {
@ -415,6 +419,8 @@ static void janet_sysir_init_instructions(JanetSysIR *out, JanetView instruction
if (janet_tuple_length(tuple) < 1) {
janet_panic("invalid instruction, no opcode");
}
int32_t line = janet_tuple_sm_line(tuple);
int32_t column = janet_tuple_sm_column(tuple);
Janet opvalue = tuple[0];
if (!janet_checktype(opvalue, JANET_SYMBOL)) {
janet_panicf("expected opcode symbol, found %V", opvalue);
@ -482,6 +488,8 @@ static void janet_sysir_init_instructions(JanetSysIR *out, JanetView instruction
}
}
check_instruction_well_formed(instruction, x, out);
instruction.line = line;
instruction.column = column;
ir[cursor++] = instruction;
}
/* Check last instruction is jump or return */
@ -583,6 +591,9 @@ void janet_sys_ir_lower_to_c(JanetSysIR *ir, JanetBuffer *buffer) {
for (uint32_t i = 0; i < ir->instruction_count; i++) {
janet_formatb(buffer, "_i%u:\n ", i);
JanetSysInstruction instruction = ir->instructions[i];
if (instruction.line > 0) {
janet_formatb(buffer, "#line %d\n ", instruction.line);
}
switch (instruction.opcode) {
case JANET_SYSOP_CONSTANT: {
const char *cast = c_prim_names[ir->types[instruction.two.dest]];