From: Uros Bizjak <ubizjak@gmail.com>
Date: Thu, 14 Feb 2019 23:54:25 +0000 (+0100)
Subject: i386.h (TARGET_SUBTARGET64_ISA_DEFAULT): Enable MMX, SSE and SSE2 by default.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=8b131a8a7a1b69530130316543162225003c4b2f;p=gcc.git

i386.h (TARGET_SUBTARGET64_ISA_DEFAULT): Enable MMX, SSE and SSE2 by default.

	* config/i386/i386.h (TARGET_SUBTARGET64_ISA_DEFAULT):
	Enable MMX, SSE and SSE2 by default.
	* config/i386/i386.c (ix86_option_override_internal): Do not
	explicitly set MMX, SSE and SSE2 flags for TARGET_64BIT here.

From-SVN: r268917
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index d3f97061393..a41a0a9151f 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,10 @@
+2019-02-15  Uroš Bizjak  <ubizjak@gmail.com>
+
+	* config/i386/i386.h (TARGET_SUBTARGET64_ISA_DEFAULT):
+	Enable MMX, SSE and SSE2 by default.
+	* config/i386/i386.c (ix86_option_override_internal): Do not
+	explicitly set MMX, SSE and SSE2 flags for TARGET_64BIT here.
+
 2019-02-14  Jakub Jelinek  <jakub@redhat.com>
 
 	PR rtl-optimization/89354
diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
index fd05873ba39..609273e4fc4 100644
--- a/gcc/config/i386/i386.c
+++ b/gcc/config/i386/i386.c
@@ -4165,14 +4165,9 @@ ix86_option_override_internal (bool main_args_p,
       opts->x_target_flags
 	|= TARGET_SUBTARGET64_DEFAULT & ~opts_set->x_target_flags;
 
-      /* Enable by default the SSE and MMX builtins.  Do allow the user to
-	 explicitly disable any of these.  In particular, disabling SSE and
-	 MMX for kernel code is extremely useful.  */
       if (!ix86_arch_specified)
-      opts->x_ix86_isa_flags
-	|= ((OPTION_MASK_ISA_SSE2 | OPTION_MASK_ISA_SSE | OPTION_MASK_ISA_MMX
-	     | TARGET_SUBTARGET64_ISA_DEFAULT)
-            & ~opts->x_ix86_isa_flags_explicit);
+	opts->x_ix86_isa_flags
+	  |= TARGET_SUBTARGET64_ISA_DEFAULT & ~opts->x_ix86_isa_flags_explicit;
 
       if (TARGET_RTD_P (opts->x_target_flags))
 	warning (0,
diff --git a/gcc/config/i386/i386.h b/gcc/config/i386/i386.h
index 83b025e0cf5..d9039060997 100644
--- a/gcc/config/i386/i386.h
+++ b/gcc/config/i386/i386.h
@@ -633,7 +633,9 @@ extern tree x86_mfence;
 
 /* Extra bits to force on w/ 64-bit mode.  */
 #define TARGET_SUBTARGET64_DEFAULT 0
-#define TARGET_SUBTARGET64_ISA_DEFAULT 0
+/* Enable MMX, SSE and SSE2 by default.  */
+#define TARGET_SUBTARGET64_ISA_DEFAULT \
+  (OPTION_MASK_ISA_MMX | OPTION_MASK_ISA_SSE | OPTION_MASK_ISA_SSE2)
 
 /* Replace MACH-O, ifdefs by in-line tests, where possible. 
    (a) Macros defined in config/i386/darwin.h  */