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| author | Steve Ellcey <sje@cup.hp.com> | 2001-07-19 23:26:51 +0000 |
|---|---|---|
| committer | Richard Henderson <rth@gcc.gnu.org> | 2001-07-19 16:26:51 -0700 |
| commit | 6dd12198d088c1e749b67c9e9a92352b2639265a (patch) | |
| tree | a9b47fb91c9fd09f19a418557090e5dd7abf596d /gcc/explow.c | |
| parent | 0248ce054752e353be11bdf52dae7c5f6d2cb7f0 (diff) | |
| download | gcc-6dd12198d088c1e749b67c9e9a92352b2639265a.tar.gz | |
* tm.texi (POINTERS_EXTEND_UNSIGNED) Modify definition.
* optabs.c (can_extend_p) Check HAVE_ptr_extend for a specialized
pointer extension instruction.
* combine.c (nonzero_bits,num_sign_bit_copies) Likewise.
* simplify-rtx.c (simplify_unary_operation) Likewise.
* explow.c (convert_memory_address) Check value of
POINTERS_EXTEND_UNSIGNED to avoid some conversions when
less than zero.
* config/ia64/t-hpux (LIBGCC, INSTALL_LIBGCC, MULTILIB_OPTIONS,
MULTILIB_DIRNAMES, MULTILIB_MATCHES) Add multilib support.
* config/ia64/hpux.h (CPP_SPEC, ASM_SPEC, SUBTARGET_SWITCHES)
Add Multilib Support.
(POINTERS_EXTEND_UNSIGNED) Define for ILP32 support.
* config/ia64/ia64.h (MASK_ILP32, TARGET_ILP32, SUBTARGET_SWITCHES)
Add Multilib Support.
(POINTER_SIZE, LONG_TYPE_SIZE, MAX_LONG_TYPE_SIZE) Modify for ILP32
support.
* config/ia64/ia64.c (rtx_needs_barrier) Add support for addp4.
* config/ia64/ia64.md (ptr_extend) New instruction to "swizzle"
a 32 bit HP-UX pointer into a 64 bit HP-UX pointer.
From-SVN: r44166
Diffstat (limited to 'gcc/explow.c')
| -rw-r--r-- | gcc/explow.c | 42 |
1 files changed, 27 insertions, 15 deletions
diff --git a/gcc/explow.c b/gcc/explow.c index afb51d9e655..a8249999c98 100644 --- a/gcc/explow.c +++ b/gcc/explow.c @@ -365,25 +365,36 @@ convert_memory_address (to_mode, x) return x; case SUBREG: - if (GET_MODE (SUBREG_REG (x)) == to_mode) + if (POINTERS_EXTEND_UNSIGNED >= 0 + && GET_MODE (SUBREG_REG (x)) == to_mode) return SUBREG_REG (x); break; case LABEL_REF: - temp = gen_rtx_LABEL_REF (to_mode, XEXP (x, 0)); - LABEL_REF_NONLOCAL_P (temp) = LABEL_REF_NONLOCAL_P (x); - return temp; + if (POINTERS_EXTEND_UNSIGNED >= 0) + { + temp = gen_rtx_LABEL_REF (to_mode, XEXP (x, 0)); + LABEL_REF_NONLOCAL_P (temp) = LABEL_REF_NONLOCAL_P (x); + return temp; + } + break; case SYMBOL_REF: - temp = gen_rtx_SYMBOL_REF (to_mode, XSTR (x, 0)); - SYMBOL_REF_FLAG (temp) = SYMBOL_REF_FLAG (x); - CONSTANT_POOL_ADDRESS_P (temp) = CONSTANT_POOL_ADDRESS_P (x); - STRING_POOL_ADDRESS_P (temp) = STRING_POOL_ADDRESS_P (x); - return temp; + if (POINTERS_EXTEND_UNSIGNED >= 0) + { + temp = gen_rtx_SYMBOL_REF (to_mode, XSTR (x, 0)); + SYMBOL_REF_FLAG (temp) = SYMBOL_REF_FLAG (x); + CONSTANT_POOL_ADDRESS_P (temp) = CONSTANT_POOL_ADDRESS_P (x); + STRING_POOL_ADDRESS_P (temp) = STRING_POOL_ADDRESS_P (x); + return temp; + } + break; case CONST: - return gen_rtx_CONST (to_mode, - convert_memory_address (to_mode, XEXP (x, 0))); + if (POINTERS_EXTEND_UNSIGNED >= 0) + return gen_rtx_CONST (to_mode, + convert_memory_address (to_mode, XEXP (x, 0))); + break; case PLUS: case MULT: @@ -391,10 +402,11 @@ convert_memory_address (to_mode, x) permute the conversion and addition operation. We can always safely permute them if we are making the address narrower. In addition, always permute the operations if this is a constant. */ - if (GET_MODE_SIZE (to_mode) < GET_MODE_SIZE (from_mode) - || (GET_CODE (x) == PLUS && GET_CODE (XEXP (x, 1)) == CONST_INT - && (INTVAL (XEXP (x, 1)) + 20000 < 40000 - || CONSTANT_P (XEXP (x, 0))))) + if (POINTERS_EXTEND_UNSIGNED >= 0 + && (GET_MODE_SIZE (to_mode) < GET_MODE_SIZE (from_mode) + || (GET_CODE (x) == PLUS && GET_CODE (XEXP (x, 1)) == CONST_INT + && (INTVAL (XEXP (x, 1)) + 20000 < 40000 + || CONSTANT_P (XEXP (x, 0)))))) return gen_rtx_fmt_ee (GET_CODE (x), to_mode, convert_memory_address (to_mode, XEXP (x, 0)), convert_memory_address (to_mode, XEXP (x, 1))); |