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48 lines
1.6 KiB
Diff
48 lines
1.6 KiB
Diff
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2008-09-10 Andy Hutchinson <hutchinsonandy@aim.com>
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* config/avr/avr.c (legitimate_address_p): Fix problem where subreg
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is not recognized as a valid register usage. Allow REG_X to be used
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as a base pointer.
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* config/avr/avr.h (LEGITIMIZE_RELOAD_ADDRESS): Remove code that
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forces a reload when using a base register.
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Index: gcc/config/avr/avr.c
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===================================================================
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--- gcc/config/avr/avr.c (revision 140164)
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+++ gcc/config/avr/avr.c (working copy)
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@@ -1089,6 +1089,8 @@
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true_regnum (XEXP (x, 0)));
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debug_rtx (x);
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}
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+ if (!strict && GET_CODE (x) == SUBREG)
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+ x = SUBREG_REG (x);
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if (REG_P (x) && (strict ? REG_OK_FOR_BASE_STRICT_P (x)
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: REG_OK_FOR_BASE_NOSTRICT_P (x)))
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r = POINTER_REGS;
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@@ -1103,6 +1105,7 @@
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if (fit)
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{
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if (! strict
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+ || REGNO (XEXP (x,0)) == REG_X
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|| REGNO (XEXP (x,0)) == REG_Y
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|| REGNO (XEXP (x,0)) == REG_Z)
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r = BASE_POINTER_REGS;
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Index: gcc/config/avr/avr.h
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===================================================================
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--- gcc/config/avr/avr.h (revision 140164)
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+++ gcc/config/avr/avr.h (working copy)
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@@ -483,10 +483,6 @@
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OPNUM, TYPE); \
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goto WIN; \
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} \
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- push_reload (XEXP (X, 0), NULL_RTX, &XEXP (X, 0), NULL, \
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- BASE_POINTER_REGS, GET_MODE (X), VOIDmode, 0, 0, \
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- OPNUM, TYPE); \
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- goto WIN; \
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} \
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else if (! (frame_pointer_needed && XEXP (X,0) == frame_pointer_rtx)) \
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{ \
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