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| author | Jim Wilson <wilson@gcc.gnu.org> | 1993-08-12 10:52:01 -0700 |
|---|---|---|
| committer | Jim Wilson <wilson@gcc.gnu.org> | 1993-08-12 10:52:01 -0700 |
| commit | 7aca9b9c4e6b744c5e78dc34601f6466fdf2b89e (patch) | |
| tree | d5cfa925125e571340d6c0ad0acedec4dfbd5f07 /gcc | |
| parent | d0fc7beaa298aebb9c43fac79c88d6e406daa319 (diff) | |
| download | gcc-7aca9b9c4e6b744c5e78dc34601f6466fdf2b89e.zip gcc-7aca9b9c4e6b744c5e78dc34601f6466fdf2b89e.tar.gz gcc-7aca9b9c4e6b744c5e78dc34601f6466fdf2b89e.tar.bz2 | |
(SECONDARY_INPUT_RELOAD_CLASS): Delete case for invalid PIC addresses.
(SECONDARY_INPUT_RELOAD_CLASS): Delete case for invalid
PIC addresses.
(CONSTANT_ADDRESS_P): Reject invalid PIC addresses.
(LEGITIMATE_PIC_OPERAND_P): New macro.
(GO_IF_LEGITIMATE_ADDRESS): Reject invalid PIC addresses.
(LEGITIMIZE_ADDRESS): Fix call to legitimize_pic_address.
From-SVN: r5144
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/config/sparc/sparc.h | 23 |
1 files changed, 16 insertions, 7 deletions
diff --git a/gcc/config/sparc/sparc.h b/gcc/config/sparc/sparc.h index 914ecc5..caa3182 100644 --- a/gcc/config/sparc/sparc.h +++ b/gcc/config/sparc/sparc.h @@ -632,8 +632,7 @@ extern char leaf_reg_backmap[]; a paradoxical subreg in a float/fix conversion insn. */ #define SECONDARY_INPUT_RELOAD_CLASS(CLASS, MODE, IN) \ - (flag_pic && pic_address_needs_scratch (IN) ? GENERAL_REGS \ - : ((CLASS) == FP_REGS && ((MODE) == HImode || (MODE) == QImode)\ + (((CLASS) == FP_REGS && ((MODE) == HImode || (MODE) == QImode)\ && (GET_CODE (IN) == MEM \ || ((GET_CODE (IN) == REG || GET_CODE (IN) == SUBREG) \ && true_regnum (IN) == -1))) ? GENERAL_REGS : NO_REGS) @@ -1120,12 +1119,20 @@ extern struct rtx_def *sparc_builtin_saveregs (); #define MAX_REGS_PER_ADDRESS 2 -/* Recognize any constant value that is a valid address. */ +/* Recognize any constant value that is a valid address. + When PIC, we do not accept an address that would require a scratch reg + to load into a register. */ #define CONSTANT_ADDRESS_P(X) \ (GET_CODE (X) == LABEL_REF || GET_CODE (X) == SYMBOL_REF \ - || GET_CODE (X) == CONST_INT || GET_CODE (X) == CONST \ - || GET_CODE (X) == HIGH) + || GET_CODE (X) == CONST_INT || GET_CODE (X) == HIGH \ + || (GET_CODE (X) == CONST \ + && ! (flag_pic && pic_address_needs_scratch (X)))) + +/* Define this, so that when PIC, reload won't try to reload invalid + addresses which require two reload registers. */ + +#define LEGITIMATE_PIC_OPERAND_P(X) (! pic_address_needs_scratch (X)) /* Nonzero if the constant value X is a legitimate general operand. Anything can be made to work except floating point constants. */ @@ -1245,7 +1252,9 @@ extern struct rtx_def *sparc_builtin_saveregs (); else if (flag_pic == 1 \ && GET_CODE (op1) != REG \ && GET_CODE (op1) != LO_SUM \ - && GET_CODE (op1) != MEM) \ + && GET_CODE (op1) != MEM \ + && (GET_CODE (op1) != CONST_INT \ + || SMALL_INT (op1))) \ goto ADDR; \ } \ else if (RTX_OK_FOR_BASE_P (op0)) \ @@ -1304,7 +1313,7 @@ extern struct rtx_def *legitimize_pic_address (); force_operand (XEXP (X, 1), NULL_RTX)); \ if (sparc_x != (X) && memory_address_p (MODE, X)) \ goto WIN; \ - if (flag_pic) (X) = legitimize_pic_address (X, MODE, 0, 0); \ + if (flag_pic) (X) = legitimize_pic_address (X, MODE, 0); \ else if (GET_CODE (X) == PLUS && CONSTANT_ADDRESS_P (XEXP (X, 1))) \ (X) = gen_rtx (PLUS, Pmode, XEXP (X, 0), \ copy_to_mode_reg (Pmode, XEXP (X, 1))); \ |