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Add intrinsics add_sat and sub_sat

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This commit is contained in:
gingerBill
2024-07-16 00:48:17 +01:00
parent 03426175ae
commit 23ca27f40b
3 changed files with 14 additions and 0 deletions
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6
src/llvm_backend_proc.cpp
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@@ -2236,6 +2236,8 @@ gb_internal lbValue lb_build_builtin_proc(lbProcedure *p, Ast *expr, TypeAndValu
case BuiltinProc_overflow_add:
case BuiltinProc_overflow_sub:
case BuiltinProc_overflow_mul:
case BuiltinProc_add_sat:
case BuiltinProc_sub_sat:
{
Type *main_type = tv.type;
Type *type = main_type;
@@ -2254,12 +2256,16 @@ gb_internal lbValue lb_build_builtin_proc(lbProcedure *p, Ast *expr, TypeAndValu
case BuiltinProc_overflow_add: name = "llvm.uadd.with.overflow"; break;
case BuiltinProc_overflow_sub: name = "llvm.usub.with.overflow"; break;
case BuiltinProc_overflow_mul: name = "llvm.umul.with.overflow"; break;
case BuiltinProc_add_sat: name = "llvm.uadd.sat"; break;
case BuiltinProc_sub_sat: name = "llvm.usub.sat"; break;
}
} else {
switch (id) {
case BuiltinProc_overflow_add: name = "llvm.sadd.with.overflow"; break;
case BuiltinProc_overflow_sub: name = "llvm.ssub.with.overflow"; break;
case BuiltinProc_overflow_mul: name = "llvm.smul.with.overflow"; break;
case BuiltinProc_add_sat: name = "llvm.sadd.sat"; break;
case BuiltinProc_sub_sat: name = "llvm.ssub.sat"; break;
}
}
LLVMTypeRef types[1] = {lb_type(p->module, type)};