diff options
| author | H.J. Lu <hjl@gcc.gnu.org> | 2015-07-06 09:56:11 -0700 |
|---|---|---|
| committer | H.J. Lu <hjl@gcc.gnu.org> | 2015-07-06 09:56:11 -0700 |
| commit | a0f4ee6ee5336997f2a3eeaca330d225ae82ace8 (patch) | |
| tree | 76ab9546cff1a7baaf0e1b0fde5749d5862116fb /gcc/config.gcc | |
| parent | ee40b04429bbf86e94579b11e29b7ece7b3c08a9 (diff) | |
| download | gcc-a0f4ee6ee5336997f2a3eeaca330d225ae82ace8.zip gcc-a0f4ee6ee5336997f2a3eeaca330d225ae82ace8.tar.gz gcc-a0f4ee6ee5336997f2a3eeaca330d225ae82ace8.tar.bz2 | |
Optimize i?86-*-elfiamcu for iamcu by default
Default -mtune=/-march= to iamcu for i[34567]86-*-elfiamcu targets.
* config.gcc (x86_archs): Add iamcu.
(with_cpu): Default to iamcu for i[34567]86-*-elfiamcu.
(with_arch): Likewise.
* doc/invoke.texi: Add iamcu.
From-SVN: r225464
Diffstat (limited to 'gcc/config.gcc')
| -rw-r--r-- | gcc/config.gcc | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/gcc/config.gcc b/gcc/config.gcc index 2b3af82..f0405fe 100644 --- a/gcc/config.gcc +++ b/gcc/config.gcc @@ -585,7 +585,7 @@ tm_defines="$tm_defines LIBC_GLIBC=1 LIBC_UCLIBC=2 LIBC_BIONIC=3 LIBC_MUSL=4" x86_archs="athlon athlon-4 athlon-fx athlon-mp athlon-tbird \ athlon-xp k6 k6-2 k6-3 geode c3 c3-2 winchip-c6 winchip2 i386 i486 \ i586 i686 pentium pentium-m pentium-mmx pentium2 pentium3 pentium3m \ -pentium4 pentium4m pentiumpro prescott" +pentium4 pentium4m pentiumpro prescott iamcu" # 64-bit x86 processors supported by --with-arch=. Each processor # MUST be separated by exactly one space. @@ -3278,6 +3278,9 @@ esac # This block sets nothing except for with_cpu. if test x$with_cpu = x ; then case ${target} in + i[34567]86-*-elfiamcu) + with_cpu=iamcu + ;; i[34567]86-*-*|x86_64-*-*) with_cpu=$cpu ;; @@ -3370,6 +3373,9 @@ if test x$with_arch = x ; then # Default arch is set via TARGET_SUBTARGET32_ISA_DEFAULT # and TARGET_SUBTARGET64_ISA_DEFAULT in config/i386/darwin.h. ;; + i[34567]86-*-elfiamcu) + with_arch=iamcu + ;; i[34567]86-*-*) # --with-fpmath sets the default ISA to SSE2, which is the same # ISA supported by Pentium 4. |