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ac/llvm: Implement usub_sat and isub_sat.

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Signed-off-by: Georg Lehmann <dadschoorse@gmail.com>
Reviewed-by: Timur Kristóf <timur.kristof@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/13895>
This commit is contained in:
Georg Lehmann
2021-11-20 20:45:57 +01:00
committed by Marge Bot
parent d404f1964c
commit 8671b866bf
1 changed files with 9 additions and 0 deletions
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src/amd/llvm/ac_nir_to_llvm.c
+9
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@@ -649,6 +649,15 @@ static void visit_alu(struct ac_nir_context *ctx, const nir_alu_instr *instr)
result = ac_build_intrinsic(&ctx->ac, name, def_type, src, 2, AC_FUNC_ATTR_READNONE);
break;
}
case nir_op_usub_sat:
case nir_op_isub_sat: {
char name[64], type[64];
ac_build_type_name_for_intr(def_type, type, sizeof(type));
snprintf(name, sizeof(name), "llvm.%csub.sat.%s",
instr->op == nir_op_usub_sat ? 'u' : 's', type);
result = ac_build_intrinsic(&ctx->ac, name, def_type, src, 2, AC_FUNC_ATTR_READNONE);
break;
}
case nir_op_fadd:
src[0] = ac_to_float(&ctx->ac, src[0]);
src[1] = ac_to_float(&ctx->ac, src[1]);