From a0f4ee6ee5336997f2a3eeaca330d225ae82ace8 Mon Sep 17 00:00:00 2001 From: "H.J. Lu" Date: Mon, 6 Jul 2015 09:56:11 -0700 Subject: [PATCH] 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 --- gcc/config.gcc | 8 +++++++- gcc/doc/invoke.texi | 3 +++ 2 files changed, 10 insertions(+), 1 deletion(-) diff --git a/gcc/config.gcc b/gcc/config.gcc index 2b3af82be94..f0405fe2bcd 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. diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi index 69ae0c35da5..b28e5d60f5c 100644 --- a/gcc/doc/invoke.texi +++ b/gcc/doc/invoke.texi @@ -22250,6 +22250,9 @@ 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. -- 2.30.2