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xtensa.h (GO_IF_MODE_DEPENDENT_ADDRESS): Treat constant-pool addresses as "mode-dependent".

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* config/xtensa/xtensa.h (GO_IF_MODE_DEPENDENT_ADDRESS): Treat
        constant-pool addresses as "mode-dependent".
        (GO_IF_LEGITIMATE_ADDRESS): Rename macro arguments.

From-SVN: r50984
This commit is contained in:
Bob Wilson 2002-03-18 18:20:19 +00:00 committed by Bob Wilson
parent 71c6877d3e
commit eb8e00ea23
2 changed files with 24 additions and 6 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2002-03-18 Bob Wilson <bob.wilson@acm.org>
* config/xtensa/xtensa.h (GO_IF_MODE_DEPENDENT_ADDRESS): Treat
constant-pool addresses as "mode-dependent".
(GO_IF_LEGITIMATE_ADDRESS): Rename macro arguments.
2002-03-18 Jakub Jelinek <jakub@redhat.com>
PR target/5740

24
gcc/config/xtensa/xtensa.h
View File

@ -1145,21 +1145,21 @@ typedef struct xtensa_args {
#define MAX_REGS_PER_ADDRESS 1
/* Identify valid Xtensa addresses. */
#define GO_IF_LEGITIMATE_ADDRESS(MODE, X, ADDR) \
#define GO_IF_LEGITIMATE_ADDRESS(MODE, ADDR, LABEL) \
do { \
rtx xinsn = (X); \
rtx xinsn = (ADDR); \
\
/* allow constant pool addresses */ \
if ((MODE) != BLKmode && GET_MODE_SIZE (MODE) >= UNITS_PER_WORD \
&& constantpool_address_p (xinsn)) \
goto ADDR; \
goto LABEL; \
\
while (GET_CODE (xinsn) == SUBREG) \
xinsn = SUBREG_REG (xinsn); \
\
/* allow base registers */ \
if (GET_CODE (xinsn) == REG && REG_OK_FOR_BASE_P (xinsn)) \
goto ADDR; \
goto LABEL; \
\
/* check for "register + offset" addressing */ \
if (GET_CODE (xinsn) == PLUS) \
@ -1190,7 +1190,7 @@ typedef struct xtensa_args {
&& code1 == CONST_INT \
&& xtensa_mem_offset (INTVAL (xplus1), (MODE))) \
{ \
goto ADDR; \
goto LABEL; \
} \
} \
} while (0)
@ -1249,7 +1249,19 @@ typedef struct xtensa_args {
} while (0)
#define GO_IF_MODE_DEPENDENT_ADDRESS(ADDR, LABEL) {}
/* Treat constant-pool references as "mode dependent" since they can
only be accessed with SImode loads. This works around a bug in the
combiner where a constant pool reference is temporarily converted
to an HImode load, which is then assumed to zero-extend based on
our definition of LOAD_EXTEND_OP. This is wrong because the high
bits of a 16-bit value in the constant pool are now sign-extended
by default. */
#define GO_IF_MODE_DEPENDENT_ADDRESS(ADDR, LABEL) \
do { \
if (constantpool_address_p (ADDR)) \
goto LABEL; \
} while (0)
/* If we are referencing a function that is static, make the SYMBOL_REF
special so that we can generate direct calls to it even with -fpic. */