From ca6ef95b038f3eb443971240de73924a721485cc Mon Sep 17 00:00:00 2001 From: Laytan Date: Thu, 15 Aug 2024 20:39:35 +0200 Subject: add support for linux_riscv64 and freestanding_riscv64 --- src/llvm_backend_proc.cpp | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) (limited to 'src/llvm_backend_proc.cpp') diff --git a/src/llvm_backend_proc.cpp b/src/llvm_backend_proc.cpp index 3326b4041..e850d3364 100644 --- a/src/llvm_backend_proc.cpp +++ b/src/llvm_backend_proc.cpp @@ -2877,6 +2877,31 @@ gb_internal lbValue lb_build_builtin_proc(lbProcedure *p, Ast *expr, TypeAndValu LLVMValueRef inline_asm = nullptr; switch (build_context.metrics.arch) { + case TargetArch_riscv64: + { + GB_ASSERT(arg_count <= 7); + + char asm_string[] = "ecall"; + gbString constraints = gb_string_make(heap_allocator(), "={a0}"); + for (unsigned i = 0; i < arg_count; i++) { + constraints = gb_string_appendc(constraints, ",{"); + static char const *regs[] = { + "a7", + "a0", + "a1", + "a2", + "a3", + "a4", + "a5", + "a6" + }; + constraints = gb_string_appendc(constraints, regs[i]); + constraints = gb_string_appendc(constraints, "}"); + } + + inline_asm = llvm_get_inline_asm(func_type, make_string_c(asm_string), make_string_c(constraints)); + } + break; case TargetArch_amd64: { GB_ASSERT(arg_count <= 7); -- cgit v1.2.3