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Restrict riscv to only allow [base + disp] (i.e. disallow index*scale style things)

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This commit is contained in:
gingerBill
2026-08-21 14:31:58 +01:00
parent 4a4a5045f8
commit 648c418fc4
6 changed files with 505 additions and 2 deletions
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11
src/check_asm.cpp
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@@ -1786,6 +1786,17 @@ gb_internal void check_asm_instruction_operand(AsmCtx *asm_ctx, CheckerContext *
gb_string_free(s);
}
if (index.expr != nullptr) {
if (!asm_ctx->supports_memory_index_not_just_disp()) {
error(index.expr, "The target platform does not support memory indexing within memory operands, only displacements");
}
}
if (scale.expr != nullptr) {
if (!asm_ctx->supports_memory_index_not_just_disp()) {
error(scale.expr, "The target platform does not support memory index scaling within memory operands");
}
}
if (mem_op->type) {
Type *t = check_type(ctx, mem_op->type);
if (t != nullptr && t != t_invalid) {