diff options
| author | hjl <hjl@138bc75d-0d04-0410-961f-82ee72b054a4> | 2015-07-06 16:56:11 +0000 |
|---|---|---|
| committer | H.J. Lu <hjl.tools@gmail.com> | 2015-09-25 14:25:59 -0700 |
| commit | 33d3ebf155fa4654bd9e7d11a26330d5316c1fe4 (patch) | |
| tree | d7fac1959f3155b57053cad1301616488d3673bc | |
| parent | 7ca80e62534a906bec33a6d61c4a36c0357933d1 (diff) | |
| download | gcc-33d3ebf155fa4654bd9e7d11a26330d5316c1fe4.tar.gz | |
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.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@225464 138bc75d-0d04-0410-961f-82ee72b054a4
| -rw-r--r-- | gcc/config.gcc | 8 | ||||
| -rw-r--r-- | gcc/doc/invoke.texi | 3 |
2 files changed, 10 insertions, 1 deletions
diff --git a/gcc/config.gcc b/gcc/config.gcc index 3db57177a89..d28a2f168e1 100644 --- a/gcc/config.gcc +++ b/gcc/config.gcc @@ -582,7 +582,7 @@ tm_defines="$tm_defines LIBC_GLIBC=1 LIBC_UCLIBC=2 LIBC_BIONIC=3" x86_archs="athlon athlon-4 athlon-fx athlon-mp athlon-tbird \ athlon-xp k6 k6-2 k6-3 geode c3 c3-2 winchip-c6 winchip2 i386 i486 \ i586 i686 pentium pentium-m pentium-mmx pentium2 pentium3 pentium3m \ -pentium4 pentium4m pentiumpro prescott" +pentium4 pentium4m pentiumpro prescott iamcu" # 64-bit x86 processors supported by --with-arch=. Each processor # MUST be separated by exactly one space. @@ -3260,6 +3260,9 @@ esac # This block sets nothing except for with_cpu. if test x$with_cpu = x ; then case ${target} in + i[34567]86-*-elfiamcu) + with_cpu=iamcu + ;; i[34567]86-*-*|x86_64-*-*) with_cpu=$cpu ;; @@ -3352,6 +3355,9 @@ 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. diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi index 9abfea1a1a1..b22df672744 100644 --- a/gcc/doc/invoke.texi +++ b/gcc/doc/invoke.texi @@ -21979,6 +21979,9 @@ Intel i486 CPU@. (No scheduling is implemented for this chip.) @itemx pentium Intel Pentium CPU with no MMX support. +@item iamcu +Intel MCU, based on Intel Pentium CPU. + @item pentium-mmx Intel Pentium MMX CPU, based on Pentium core with MMX instruction set support. |