mirrors/Odin
1
0
Fork 0
mirror of https://github.com/odin-lang/Odin.git synced 2026-09-03 18:50:20 +00:00
Code Issues Packages Projects Releases Wiki Activity

Mockout inline asm for riscv

Browse Source
This commit is contained in:
gingerBill
2026-08-20 14:42:42 +01:00
parent 1009ab0c62
commit 84f9bc76f9
8 changed files with 71 additions and 27 deletions
Download Patch File Download Diff File Expand all files Collapse all files

14
src/check_asm.cpp
View File

@@ -1080,8 +1080,7 @@ gb_internal void check_mnemonic(AsmCtx *asm_ctx, CheckerContext *ctx, Entity *tm
// aligned at the call boundary) or manipulates RSP directly. Plain memory access
// through a parameter pointer does NOT require stack realignment, so
// implies_clobber_memory() is intentionally NOT used here.
if ((cast(u16)clobber.side_effects & asm_ctx->SideEffectFlag_CONTROL) != 0 ||
(cast(u16)clobber.implicit_wr & asm_ctx->ClobberReg_RSP) != 0) {
if (clobber.is_call_or_mem()) {
asm_acc->saw_call_or_mem = true;
}
@@ -1159,17 +1158,16 @@ gb_internal void check_mnemonic(AsmCtx *asm_ctx, CheckerContext *ctx, Entity *tm
// is not merely CONTROL-with-fallthrough. We approximate "unconditional" as
// CONTROL|HALT with no explicit label/operand fallthrough below.
{
u16 se = cast(u16)clobber.side_effects;
bool control = (se & asm_ctx->SideEffectFlag_CONTROL) != 0;
bool halt = (se & asm_ctx->SideEffectFlag_HALT) != 0;
bool control = clobber.has_control();
bool halt = clobber.has_halt();
// A conditional branch reads a flag and can fall through -> not terminal.
bool conditional = control && (cast(u16)clobber.flags_rd != 0);
bool conditional = clobber.is_conditional();
asm_acc->last_is_terminal = halt || (control && !conditional);
}
// A branch/call inside the template means subsequent instructions may be reached
// out of textual order; stop trusting the linear def model past this point.
if (cast(u16)clobber.side_effects & asm_ctx->SideEffectFlag_CONTROL) {
if (clobber.has_control()) {
asm_acc->straight_line = false;
}
asm_ctx->clobber_implicit_regs(&tmpl_entity->AsmTemplate.clobber_registers_set, produced);
@@ -2126,6 +2124,8 @@ gb_internal void check_asm_template(AsmCtx *asm_ctx, CheckerContext *ctx, Entity
gb_internal void check_asm_template_from_entity(CheckerContext *c, Entity *e, DeclInfo *d) {
if (build_context.metrics.arch == TargetArch_amd64) {
check_asm_template(&g_asm_amd64, c, e, d);
} else if (build_context.metrics.arch == TargetArch_riscv64) {
check_asm_template(&g_asm_riscv, c, e, d);
} else {
error(e->token, "asm templates are not currently supported for this target");
}