MIPS: math-emu: Reduce microMIPS bloat.

Move microMIPS32_to_MIPS32() to a separate file which only gets built
for mipsMIPS configurations; for other configurations the optimizer
eleminates calls to microMIPS32_to_MIPS32().

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

diff --git a/arch/mips/math-emu/cp1emu.c b/arch/mips/math-emu/cp1emu.c
index bf68cf3715a6be2be08e8a59928cd203e87105a8..331334c0d3e21d27ab3587b2e79e6be09bf82b5d 100644 (file)
--- a/arch/mips/math-emu/cp1emu.c
+++ b/arch/mips/math-emu/cp1emu.c
@@ -709,6 +709,13 @@ static int cop1Emulate(struct pt_regs *xcp, struct mips_fpu_struct *ctx,
        u64 dval;
        int sig;
 
+       /*
+        * These are giving gcc a gentle hint about what to expect in
+        * dec_inst in order to do better optimization.
+        */
+       if (!cpu_has_mmips && dec_insn.micro_mips_mode)
+               unreachable();
+
        /* XXX NEC Vr54xx bug workaround */
        if (delay_slot(xcp)) {
                if (dec_insn.micro_mips_mode) {