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cbe: Implement support for -fno-builtin and @disableIntrinsics().

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Alex Rønne Petersen 2024-12-05 15:24:25 +01:00
parent 6ba785584a
commit e11ac02662
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2 changed files with 17 additions and 2 deletions
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6
lib/zig.h
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@ -223,6 +223,12 @@
#define zig_restrict
#endif
#if zig_has_attribute(no_builtin)
#define zig_no_builtin __attribute__((no_builtin))
#else
#define zig_no_builtin
#endif
#if zig_has_attribute(aligned) || defined(zig_tinyc)
#define zig_under_align(alignment) __attribute__((aligned(alignment)))
#elif defined(zig_msvc)

11
src/codegen/c.zig
View file

@ -1859,8 +1859,17 @@ pub const DeclGen = struct {
else => unreachable,
}
}
if (fn_val.getFunction(zcu)) |func| if (func.analysisUnordered(ip).branch_hint == .cold)
if (fn_val.getFunction(zcu)) |func| {
const func_analysis = func.analysisUnordered(ip);
if (func_analysis.branch_hint == .cold)
try w.writeAll("zig_cold ");
if (kind == .complete and func_analysis.disable_intrinsics or dg.mod.no_builtin)
try w.writeAll("zig_no_builtin ");
}
if (fn_info.return_type == .noreturn_type) try w.writeAll("zig_noreturn ");
var trailing = try renderTypePrefix(dg.pass, &dg.ctype_pool, zcu, w, fn_ctype, .suffix, .{});