Hello,
the attached patch addresses PR 51337.
Tested against rev 181782 with:
make -k check RUNTESTFLAGS="--target_board=sh-sim
\{-m2/-ml,-m2/-mb,-m2a-single/-mb,-m4-single/-ml,-m4-single/-mb,-m4a-single/-ml,-m4a-single/-mb}"
...with no new failures and 24 unexpected failure fixes for
-m2a-single.
Cheers,
Oleg
ChangeLog:
2011-11-29 Oleg Endo <oleg.e...@t-online.de>
PR target/51337
* config/sh/sh.c (sh_secondary_reload): Add case when FPUL
register is being loaded from a pseudo in memory.
Index: gcc/config/sh/sh.c
===================================================================
--- gcc/config/sh/sh.c (revision 181782)
+++ gcc/config/sh/sh.c (working copy)
@@ -12432,6 +12432,14 @@
if (rclass != GENERAL_REGS && REG_P (x)
&& TARGET_REGISTER_P (REGNO (x)))
return GENERAL_REGS;
+
+ /* If here fall back to loading FPUL register through general registers.
+ This case can happen when movsi_ie insn is picked initially to
+ load/store the FPUL register from/to another register, and then the
+ other register is allocated on the stack. */
+ if (rclass == FPUL_REGS && true_regnum (x) == -1)
+ return GENERAL_REGS;
+
return NO_REGS;
}
