[RFC][AArch64] Define BASE_REG_CLASS to be GENERAL_REGS

[Kugan]

Hi All,

In AArch64 back-end, BASE_REG_CLASS is defined to be POINTER_REGS.
Shouldn’t this be GENERAL_REGS?

Attached RFC patch makes it GENERAL_REGS. Regression tested for
aarch64-none-linux-gnu on qemu-aarch64 with now new regression. Is this OK ?

Thanks,
Kugan

gcc/
2014-05-15  Kugan Vivekanandarajah  <kug...@linaro.org>

        * config/aarch64/aarch64.h (BASE_REG_CLASS) : define BASE_REG_CLASS
        to be GENERAL_REGS.


diff --git a/gcc/config/aarch64/aarch64.h b/gcc/config/aarch64/aarch64.h
index 7962aa4..e55cd94 100644
--- a/gcc/config/aarch64/aarch64.h
+++ b/gcc/config/aarch64/aarch64.h
@@ -448,7 +448,7 @@ enum reg_class
 #define REGNO_REG_CLASS(REGNO) aarch64_regno_regclass (REGNO)
 
 #define INDEX_REG_CLASS        CORE_REGS
-#define BASE_REG_CLASS  POINTER_REGS
+#define BASE_REG_CLASS  GENERAL_REGS
 
 /* Register pairs used to eliminate unneeded registers that point into
    the stack frame.  */