Set powerpc64 to power4/power6

Author: cuviper

slaves/linux-cross/README.md

@@ -253,12 +253,16 @@ For targets: `powerpc64-unknown-linux-gnu`
 - Path and misc options > Local patch directory = /build/patches
 - Target options > Target Architecture = powerpc
 - Target options > Bitness = 64-bit
+- Target options > Emit assembly for CPU = power4 -- (+)
+- Target options > Tune for CPU = power6 -- (+)
 - Operating System > Target OS = linux
 - Operating System > Linux kernel version = 2.6.32.68 -- ~RHEL6 kernel
 - C-library > glibc version = 2.12.2 -- ~RHEL6 glibc
 - C compiler > gcc version = 4.9.3
 - C compiler > C++ = ENABLE -- to cross compile LLVM
 
+(+) These CPU options match the configuration of the toolchains in RHEL6.
+
 ## `s390x-linux-gnu.config`
 
 For targets: `s390x-unknown-linux-gnu`

slaves/linux-cross/powerpc64-linux-gnu.config

@@ -101,8 +101,8 @@ CT_ARCH_SUPPORTS_WITH_FLOAT=y
 CT_ARCH_DEFAULT_BE=y
 CT_ARCH_DEFAULT_32=y
 CT_ARCH_ABI=""
-CT_ARCH_CPU=""
-CT_ARCH_TUNE=""
+CT_ARCH_CPU="power4"
+CT_ARCH_TUNE="power6"
 CT_ARCH_BE=y
 # CT_ARCH_LE is not set
 # CT_ARCH_32 is not set