(SETUP_INCOMING_VARARGS): If not TARGET_FPREGS...

(SETUP_INCOMING_VARARGS): If not TARGET_FPREGS, save another copy of
the integer regs where the FP regs would have gone.

From-SVN: r5757

diff --git a/gcc/config/alpha/alpha.h b/gcc/config/alpha/alpha.h
index 4a6756d..6d671e9 100644 (file)
--- a/gcc/config/alpha/alpha.h
+++ b/gcc/config/alpha/alpha.h
@@ -794,7 +794,14 @@ enum reg_class { NO_REGS, GENERAL_REGS, FLOAT_REGS, ALL_REGS,
    However, if NO registers need to be saved, don't allocate any space.
    This is not only because we won't need the space, but because AP includes
    the current_pretend_args_size and we don't want to mess up any
-   ap-relative addresses already made.  */
+   ap-relative addresses already made.
+
+   If we are not to use the floating-point registers, save the integer
+   registers where we would put the floating-point registers.  This is
+   not the most efficient way to implement varargs with just one register
+   class, but it isn't worth doing anything more efficient in this rare
+   case.  */
+   
 
 #define SETUP_INCOMING_VARARGS(CUM,MODE,TYPE,PRETEND_SIZE,NO_RTL)      \
 { if ((CUM) < 6)                                                       \
@@ -808,7 +815,7 @@ enum reg_class { NO_REGS, GENERAL_REGS, FLOAT_REGS, ALL_REGS,
                                     ((CUM) + 6)* UNITS_PER_WORD)),     \
             6 - (CUM), (6 - (CUM)) * UNITS_PER_WORD);                  \
          move_block_from_reg                                           \
-           (16 + 32 + CUM,                                             \
+           (16 + (TARGET_FPREGS ? 32 : 0) + CUM,                       \
             gen_rtx (MEM, BLKmode,                                     \
                      plus_constant (virtual_incoming_args_rtx,         \
                                     (CUM) * UNITS_PER_WORD)),          \