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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/combine.c | |
| parent | 0248ce054752e353be11bdf52dae7c5f6d2cb7f0 (diff) | |
| download | gcc-6dd12198d088c1e749b67c9e9a92352b2639265a.zip gcc-6dd12198d088c1e749b67c9e9a92352b2639265a.tar.gz gcc-6dd12198d088c1e749b67c9e9a92352b2639265a.tar.bz2 | |
* 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/combine.c')
| -rw-r--r-- | gcc/combine.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/gcc/combine.c b/gcc/combine.c index b22dd9b..8658aad 100644 --- a/gcc/combine.c +++ b/gcc/combine.c @@ -7905,7 +7905,7 @@ nonzero_bits (x, mode) switch (code) { case REG: -#ifdef POINTERS_EXTEND_UNSIGNED +#if defined(POINTERS_EXTEND_UNSIGNED) && !defined(HAVE_ptr_extend) /* If pointers extend unsigned and this is a pointer in Pmode, say that all the bits above ptr_mode are known to be zero. */ if (POINTERS_EXTEND_UNSIGNED && GET_MODE (x) == Pmode @@ -8182,7 +8182,7 @@ nonzero_bits (x, mode) /* If pointers extend unsigned and this is an addition or subtraction to a pointer in Pmode, all the bits above ptr_mode are known to be zero. */ - if (POINTERS_EXTEND_UNSIGNED && GET_MODE (x) == Pmode + if (POINTERS_EXTEND_UNSIGNED > 0 && GET_MODE (x) == Pmode && (code == PLUS || code == MINUS) && GET_CODE (XEXP (x, 0)) == REG && REG_POINTER (XEXP (x, 0))) nonzero &= GET_MODE_MASK (ptr_mode); @@ -8363,7 +8363,7 @@ num_sign_bit_copies (x, mode) { case REG: -#ifdef POINTERS_EXTEND_UNSIGNED +#if defined(POINTERS_EXTEND_UNSIGNED) && !defined(HAVE_ptr_extend) /* If pointers extend signed and this is a pointer in Pmode, say that all the bits above ptr_mode are known to be sign bit copies. */ if (! POINTERS_EXTEND_UNSIGNED && GET_MODE (x) == Pmode && mode == Pmode |