From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Daniel Bertalan <dani@danielbertalan.dev>
Date: Mon, 16 May 2022 15:04:33 +0200
Subject: [PATCH] i386: Disable math errno for Minerva

Minerva uses exceptions for math error handling, which allows the
compiler to do more optimizations on calls to math functions. This patch
has the effect of setting -fno-math-errno by default.
---
 gcc/common/config/i386/i386-common.cc | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/gcc/common/config/i386/i386-common.cc b/gcc/common/config/i386/i386-common.cc
index 4815fbc4d3593c60585fdcc4ec90aeda025f848a..8e42b5a3acf330a17eeacfdcf369ba8e5187293e 100644
--- a/gcc/common/config/i386/i386-common.cc
+++ b/gcc/common/config/i386/i386-common.cc
@@ -2072,6 +2072,10 @@ ix86_option_init_struct (struct gcc_options *opts)
        avoid calling them when that's the only reason we would.  */
     opts->x_flag_errno_math = 0;
 
+#ifdef TARGET_MINERVA
+  opts->x_flag_errno_math = 0;
+#endif
+
   opts->x_flag_pcc_struct_return = 2;
   opts->x_flag_asynchronous_unwind_tables = 2;
 }