real.h: Define REAL_VALUE_TYPE_SIZE as 96 or 160, as appropriate.
* real.h: Define REAL_VALUE_TYPE_SIZE as 96 or 160, as appropriate. Document need for extended precision even when MAX_LONG_DOUBLE_TYPE_SIZE is smaller. Define REAL_WIDTH here, based on REAL_VALUE_TYPE_SIZE. Use REAL_WIDTH to size REAL_VALUE_TYPE. Define CONST_DOUBLE_FORMAT here. Use #error instead of relying on later syntax error when REAL_WIDTH > 5. * real.c: Define NE based only on whether or not we have a full 128-bit extended type (not INTEL_EXTENDED_IEEE_FORMAT). Require sizeof(REAL_VALUE_TYPE) == 2*NE. Unconditionally define GET_REAL and PUT_REAL as simple memcpy operations; no need to byteswap or round. Use #error instead of #ifdef-ing out the entire file, for prompt error detection. * rtl.c, gengenrtl.c: No need to calculate CONST_DOUBLE_FORMAT here. From-SVN: r52502
This commit is contained in:
Zack Weinberg
parent
36ce7daa04
commit
46468cd96f
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@ -1,3 +1,21 @@
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2002-04-18 Zack Weinberg <zack@codesourcery.com>
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* real.h: Define REAL_VALUE_TYPE_SIZE as 96 or 160, as
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appropriate. Document need for extended precision even when
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MAX_LONG_DOUBLE_TYPE_SIZE is smaller. Define REAL_WIDTH here,
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based on REAL_VALUE_TYPE_SIZE. Use REAL_WIDTH to size
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REAL_VALUE_TYPE. Define CONST_DOUBLE_FORMAT here. Use #error
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instead of relying on later syntax error when REAL_WIDTH > 5.
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* real.c: Define NE based only on whether or not we have a
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full 128-bit extended type (not INTEL_EXTENDED_IEEE_FORMAT).
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Require sizeof(REAL_VALUE_TYPE) == 2*NE. Unconditionally
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define GET_REAL and PUT_REAL as simple memcpy operations; no
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need to byteswap or round.
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Use #error instead of #ifdef-ing out the entire file, for
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prompt error detection.
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* rtl.c, gengenrtl.c: No need to calculate CONST_DOUBLE_FORMAT here.
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2002-04-18 David S. Miller <davem@redhat.com>
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* config/sparc/sparc.h (BRANCH_COST): Define.
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@ -17,17 +35,17 @@
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* config/ia64/ia64.c (ia64_function_arg_pass_by_reference): New.
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(ia64_va_arg): Expect variable sized types by reference.
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* config/ia64/ia64-protos.h: Update.
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* config/ia64/ia64.h (FUNCTION_ARG_PASS_BY_REFERENCE): Use
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* config/ia64/ia64.h (FUNCTION_ARG_PASS_BY_REFERENCE): Use
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ia64_function_arg_pass_by_reference.
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2002-04-18 Richard Henderson <rth@redhat.com>
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* ifcvt.c: Include except.h.
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(block_has_only_trap): Break out from find_cond_trap.
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(find_cond_trap): Use it. Always delete the trap block.
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(merge_if_block): Allow then block null. Be less simplistic about
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what insns can end a block.
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* Makefile.in (ifcvt.o): Depend on except.h.
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* ifcvt.c: Include except.h.
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(block_has_only_trap): Break out from find_cond_trap.
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(find_cond_trap): Use it. Always delete the trap block.
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(merge_if_block): Allow then block null. Be less simplistic about
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what insns can end a block.
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* Makefile.in (ifcvt.o): Depend on except.h.
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* config/ia64/ia64.md (trap, conditional_trap): New.
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@ -94,7 +112,7 @@ Thu Apr 18 15:49:12 CEST 2002 Jan Hubicka <jh@suse.cz>
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* combine.c (subst): Avoid trying to make a vector mode subreg of
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an integer constant.
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(gen_lowpart_for_combine): Likewise.
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2002-04-18 Roger Sayle <roger@eyesopen.com>
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Jakub Jelinek <jakub@redhat.com>
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@ -163,21 +181,21 @@ Thu Apr 18 15:49:12 CEST 2002 Jan Hubicka <jh@suse.cz>
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2002-04-17 Aldy Hernandez <aldyh@redhat.com>
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* config/rs6000/altivec.h (vec_ld): Add array variants.
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(vec_lde): Same.
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(vec_ldl): Same.
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* config/rs6000/altivec.h (vec_ld): Add array variants.
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(vec_lde): Same.
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(vec_ldl): Same.
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2002-04-17 Alan Matsuoka <alanm@redhat.com>
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Aldy Hernandez <aldyh@redhat.com>
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Aldy Hernandez <aldyh@redhat.com>
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* config/rs6000/altivec.h: Define __ALTIVEC__.
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(bool): New.
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(__pixel): New.
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(pixel): New.
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(vec_cfux): New.
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(vec_vmaddfp): New.
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(vec_vsldoi): New.
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Add parentheses to all macro arguments.
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* config/rs6000/altivec.h: Define __ALTIVEC__.
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(bool): New.
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(__pixel): New.
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(pixel): New.
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(vec_cfux): New.
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(vec_vmaddfp): New.
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(vec_vsldoi): New.
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Add parentheses to all macro arguments.
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2002-04-16 Richard Henderson <rth@redhat.com>
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@ -233,7 +251,7 @@ Thu Apr 18 15:49:12 CEST 2002 Jan Hubicka <jh@suse.cz>
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PR target/6305
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* config/s390/s390.md (mulsidi3): Set both subregs of the
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multiword register.
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multiword register.
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2002-04-16 Aldy Hernandez <aldyh@redhat.com>
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@ -272,7 +290,7 @@ Thu Apr 18 15:49:12 CEST 2002 Jan Hubicka <jh@suse.cz>
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the only supported ways to configure gcc.
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2002-04-15 Roland McGrath <roland@frob.com>
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* config.gcc (alpha*-*-gnu*): New target configuration.
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* config/alpha/gnu.h: New file for it.
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* config/gnu.h (TARGET_MEM_FUNCTIONS): #undef before #define.
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@ -285,7 +303,7 @@ Thu Apr 18 15:49:12 CEST 2002 Jan Hubicka <jh@suse.cz>
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* stmt.c (expand_start_stmt_expr): Add has_scope parameter.
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* tree-inline.c (expand_call_inline): Set STMT_EXPR_NO_SCOPE
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on the STMT_EXPR created for the inline function.
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2002-04-15 Richard Henderson <rth@redhat.com>
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* config/alpha/linux.h, config/arm/linux-elf.h, config/i370/linux.h,
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@ -526,7 +544,7 @@ Fri Apr 12 15:42:59 2002 Jeffrey A Law (law@redhat.com)
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* config/ia64/ia64.h (ASM_SPEC): Moved from here ...
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* config/ia64/sysv4.h (ASM_SPEC): ... to here, so that it
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overrides the definition in config/svr4.h.
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2002-04-12 Eric Norum <eric.norum@usask.ca>
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* config/rtems.h, config/a29k/rtems.h, config/arm/rtems-elf.h,
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@ -574,7 +592,7 @@ Fri Apr 12 10:51:38 2002 J"orn Rennecke <joern.rennecke@superh.com>
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* flow.c (mark_used_reg): Manage reg_cond_dead properly for
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modes spanning multiple hard regs.
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* recog.c (peephole2_optimize): Rebuild jump labels as needed.
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2002-04-11 John David Anglin <dave@hiauly1.hia.nrc.ca>
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@ -28,69 +28,6 @@ Software Foundation, 59 Temple Place - Suite 330, Boston, MA
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#include "real.h"
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/* Calculate the format for CONST_DOUBLE. This depends on the relative
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widths of HOST_WIDE_INT and REAL_VALUE_TYPE.
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We need to go out to e0wwwww, since real.c assumes 16 bits per element
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in REAL_VALUE_TYPE.
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This is duplicated in rtl.c.
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A number of places assume that there are always at least two 'w'
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slots in a CONST_DOUBLE, so we provide them even if one would suffice. */
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#if MAX_LONG_DOUBLE_TYPE_SIZE == 96
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# define REAL_WIDTH \
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(11*8 + HOST_BITS_PER_WIDE_INT)/HOST_BITS_PER_WIDE_INT
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#else
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# if MAX_LONG_DOUBLE_TYPE_SIZE == 128
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# define REAL_WIDTH \
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(19*8 + HOST_BITS_PER_WIDE_INT)/HOST_BITS_PER_WIDE_INT
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# else
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# if HOST_FLOAT_FORMAT != TARGET_FLOAT_FORMAT
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# define REAL_WIDTH \
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(7*8 + HOST_BITS_PER_WIDE_INT)/HOST_BITS_PER_WIDE_INT
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# endif
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# endif
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#endif
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#ifndef REAL_WIDTH
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# if HOST_BITS_PER_WIDE_INT*2 >= MAX_LONG_DOUBLE_TYPE_SIZE
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# define REAL_WIDTH 2
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# else
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# if HOST_BITS_PER_WIDE_INT*3 >= MAX_LONG_DOUBLE_TYPE_SIZE
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# define REAL_WIDTH 3
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# else
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# if HOST_BITS_PER_WIDE_INT*4 >= MAX_LONG_DOUBLE_TYPE_SIZE
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# define REAL_WIDTH 4
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# endif
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# endif
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# endif
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#endif /* REAL_WIDTH */
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#if REAL_WIDTH == 1
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# define CONST_DOUBLE_FORMAT "0ww"
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#else
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# if REAL_WIDTH == 2
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# define CONST_DOUBLE_FORMAT "0ww"
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# else
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# if REAL_WIDTH == 3
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# define CONST_DOUBLE_FORMAT "0www"
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# else
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# if REAL_WIDTH == 4
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# define CONST_DOUBLE_FORMAT "0wwww"
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# else
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# if REAL_WIDTH == 5
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# define CONST_DOUBLE_FORMAT "0wwwww"
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# else
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# define CONST_DOUBLE_FORMAT /* nothing - will cause syntax error */
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# endif
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# endif
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# endif
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# endif
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#endif
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struct rtx_definition
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{
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const char *const enumname, *const name, *const format;
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103
gcc/real.c
103
gcc/real.c
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@ -165,8 +165,7 @@ unknown arithmetic type
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#define EMUSHORT_SIZE HOST_BITS_PER_LONG
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#define EMULONG_SIZE (2 * HOST_BITS_PER_LONG)
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#else
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/* You will have to modify this program to have a smaller unit size. */
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#define EMU_NON_COMPILE
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#error "You will have to modify this program to have a smaller unit size."
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#endif
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#endif
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#endif
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@ -199,92 +198,45 @@ typedef unsigned int UHItype __attribute__ ((mode (HI)));
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#if HOST_BITS_PER_LONGLONG >= EMULONG_SIZE
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#define EMULONG long long int
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#else
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/* You will have to modify this program to have a smaller unit size. */
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#define EMU_NON_COMPILE
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#error "You will have to modify this program to have a smaller unit size."
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#endif
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#endif
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#endif
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#endif
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/* The host interface doesn't work if no 16-bit size exists. */
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#if EMUSHORT_SIZE != 16
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#define EMU_NON_COMPILE
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#error "The host interface doesn't work if no 16-bit size exists."
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#endif
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/* OK to continue compilation. */
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#ifndef EMU_NON_COMPILE
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/* Calculate the size of the generic "e" type. This always has
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identical in-memory size and representation to REAL_VALUE_TYPE.
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There are only two supported sizes: ten and six 16-bit words (160
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or 96 bits). */
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#if MAX_LONG_DOUBLE_TYPE_SIZE == 128 && !INTEL_EXTENDED_IEEE_FORMAT
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/* TFmode */
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# define NE 10
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# define MAXDECEXP 4932
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# define MINDECEXP -4977
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#else
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# define NE 6
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# define MAXDECEXP 4932
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# define MINDECEXP -4956
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#endif
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/* Fail compilation if 2*NE is not the appropriate size. */
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struct compile_test_dummy {
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char twice_NE_must_equal_sizeof_REAL_VALUE_TYPE
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[(sizeof (REAL_VALUE_TYPE) == 2*NE) ? 1 : -1];
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};
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/* Construct macros to translate between REAL_VALUE_TYPE and e type.
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In GET_REAL and PUT_REAL, r and e are pointers.
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A REAL_VALUE_TYPE is guaranteed to occupy contiguous locations
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in memory, with no holes. */
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#if MAX_LONG_DOUBLE_TYPE_SIZE == 96 || \
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((INTEL_EXTENDED_IEEE_FORMAT != 0) && MAX_LONG_DOUBLE_TYPE_SIZE == 128)
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/* Number of 16 bit words in external e type format */
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# define NE 6
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# define MAXDECEXP 4932
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# define MINDECEXP -4956
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# define GET_REAL(r,e) memcpy ((e), (r), 2*NE)
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# define PUT_REAL(e,r) \
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do { \
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memcpy ((r), (e), 2*NE); \
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if (2*NE < sizeof (*r)) \
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memset ((char *) (r) + 2*NE, 0, sizeof (*r) - 2*NE); \
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} while (0)
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# else /* no XFmode */
|
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# if MAX_LONG_DOUBLE_TYPE_SIZE == 128
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# define NE 10
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# define MAXDECEXP 4932
|
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# define MINDECEXP -4977
|
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# define GET_REAL(r,e) memcpy ((e), (r), 2*NE)
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# define PUT_REAL(e,r) \
|
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do { \
|
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memcpy ((r), (e), 2*NE); \
|
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if (2*NE < sizeof (*r)) \
|
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memset ((char *) (r) + 2*NE, 0, sizeof (*r) - 2*NE); \
|
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} while (0)
|
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#else
|
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#define NE 6
|
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#define MAXDECEXP 4932
|
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#define MINDECEXP -4956
|
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/* Emulator uses target format internally
|
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but host stores it in host endian-ness. */
|
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|
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#define GET_REAL(r,e) \
|
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do { \
|
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if (HOST_FLOAT_WORDS_BIG_ENDIAN == REAL_WORDS_BIG_ENDIAN) \
|
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e53toe ((const UEMUSHORT *) (r), (e)); \
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else \
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{ \
|
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UEMUSHORT w[4]; \
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memcpy (&w[3], ((const EMUSHORT *) r), sizeof (EMUSHORT)); \
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memcpy (&w[2], ((const EMUSHORT *) r) + 1, sizeof (EMUSHORT)); \
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memcpy (&w[1], ((const EMUSHORT *) r) + 2, sizeof (EMUSHORT)); \
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memcpy (&w[0], ((const EMUSHORT *) r) + 3, sizeof (EMUSHORT)); \
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e53toe (w, (e)); \
|
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} \
|
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} while (0)
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|
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#define PUT_REAL(e,r) \
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do { \
|
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if (HOST_FLOAT_WORDS_BIG_ENDIAN == REAL_WORDS_BIG_ENDIAN) \
|
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etoe53 ((e), (UEMUSHORT *) (r)); \
|
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else \
|
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{ \
|
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UEMUSHORT w[4]; \
|
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etoe53 ((e), w); \
|
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memcpy (((EMUSHORT *) r), &w[3], sizeof (EMUSHORT)); \
|
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memcpy (((EMUSHORT *) r) + 1, &w[2], sizeof (EMUSHORT)); \
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memcpy (((EMUSHORT *) r) + 2, &w[1], sizeof (EMUSHORT)); \
|
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memcpy (((EMUSHORT *) r) + 3, &w[0], sizeof (EMUSHORT)); \
|
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} \
|
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} while (0)
|
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|
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#endif /* not TFmode */
|
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#endif /* not XFmode */
|
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|
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#define GET_REAL(r, e) memcpy ((e), (r), 2*NE)
|
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#define PUT_REAL(e, r) memcpy ((r), (e), 2*NE)
|
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|
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/* Number of 16 bit words in internal format */
|
||||
#define NI (NE+3)
|
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|
|
@ -6918,7 +6870,6 @@ esqrt (x, y)
|
|||
emovo (sq, y);
|
||||
}
|
||||
#endif
|
||||
#endif /* EMU_NON_COMPILE not defined */
|
||||
|
||||
/* Return the binary precision of the significand for a given
|
||||
floating point mode. The mode can hold an integer value
|
||||
|
|
|
|||
48
gcc/real.h
48
gcc/real.h
|
|
@ -76,19 +76,49 @@ Software Foundation, 59 Temple Place - Suite 330, Boston, MA
|
|||
/* **** Start of software floating point emulator interface macros **** */
|
||||
|
||||
/* REAL_VALUE_TYPE is an array of the minimum number of HOST_WIDE_INTs
|
||||
required to hold MAX_LONG_DOUBLE_TYPE_SIZE bits. */
|
||||
#if MAX_LONG_DOUBLE_TYPE_SIZE == 128
|
||||
/* For 128 bit reals, we calculate internally with extra precision. */
|
||||
#define N (160 / BITS_PER_UNIT)
|
||||
required to hold either a 96- or 160-bit extended precision floating
|
||||
point type. This is true even if the maximum precision floating
|
||||
point type on the target is smaller. */
|
||||
#if MAX_LONG_DOUBLE_TYPE_SIZE == 128 && !INTEL_EXTENDED_IEEE_FORMAT
|
||||
#define REAL_VALUE_TYPE_SIZE 160
|
||||
#else
|
||||
#define N (MAX_LONG_DOUBLE_TYPE_SIZE / BITS_PER_UNIT)
|
||||
#define REAL_VALUE_TYPE_SIZE 96
|
||||
#endif
|
||||
#define S sizeof (HOST_WIDE_INT)
|
||||
#define REAL_WIDTH \
|
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(REAL_VALUE_TYPE_SIZE/HOST_BITS_PER_WIDE_INT \
|
||||
+ (REAL_VALUE_TYPE_SIZE%HOST_BITS_PER_WIDE_INT ? 1 : 0)) /* round up */
|
||||
typedef struct {
|
||||
HOST_WIDE_INT r[N/S + (N%S ? 1 : 0)]; /* round up */
|
||||
HOST_WIDE_INT r[REAL_WIDTH];
|
||||
} REAL_VALUE_TYPE;
|
||||
#undef N
|
||||
#undef S
|
||||
|
||||
/* Calculate the format for CONST_DOUBLE. We need as many slots as
|
||||
are necessary to overlay a REAL_VALUE_TYPE on them. This could be
|
||||
as many as five (32-bit HOST_WIDE_INT, 160-bit REAL_VALUE_TYPE).
|
||||
|
||||
A number of places assume that there are always at least two 'w'
|
||||
slots in a CONST_DOUBLE, so we provide them even if one would suffice. */
|
||||
|
||||
#if REAL_WIDTH == 1
|
||||
# define CONST_DOUBLE_FORMAT "0ww"
|
||||
#else
|
||||
# if REAL_WIDTH == 2
|
||||
# define CONST_DOUBLE_FORMAT "0ww"
|
||||
# else
|
||||
# if REAL_WIDTH == 3
|
||||
# define CONST_DOUBLE_FORMAT "0www"
|
||||
# else
|
||||
# if REAL_WIDTH == 4
|
||||
# define CONST_DOUBLE_FORMAT "0wwww"
|
||||
# else
|
||||
# if REAL_WIDTH == 5
|
||||
# define CONST_DOUBLE_FORMAT "0wwwww"
|
||||
# else
|
||||
#error "REAL_WIDTH > 5 not supported"
|
||||
# endif
|
||||
# endif
|
||||
# endif
|
||||
# endif
|
||||
#endif
|
||||
|
||||
extern unsigned int significand_size PARAMS ((enum machine_mode));
|
||||
|
||||
|
|
|
|||
62
gcc/rtl.c
62
gcc/rtl.c
|
|
@ -27,68 +27,6 @@ Software Foundation, 59 Temple Place - Suite 330, Boston, MA
|
|||
#include "errors.h"
|
||||
|
||||
|
||||
/* Calculate the format for CONST_DOUBLE. This depends on the relative
|
||||
widths of HOST_WIDE_INT and REAL_VALUE_TYPE.
|
||||
|
||||
We need to go out to 0wwwww, since real.c assumes 16 bits per element
|
||||
in REAL_VALUE_TYPE.
|
||||
|
||||
This is duplicated in gengenrtl.c.
|
||||
|
||||
A number of places assume that there are always at least two 'w'
|
||||
slots in a CONST_DOUBLE, so we provide them even if one would suffice. */
|
||||
|
||||
#if MAX_LONG_DOUBLE_TYPE_SIZE == 96
|
||||
# define REAL_WIDTH \
|
||||
(11*8 + HOST_BITS_PER_WIDE_INT)/HOST_BITS_PER_WIDE_INT
|
||||
#else
|
||||
# if MAX_LONG_DOUBLE_TYPE_SIZE == 128
|
||||
# define REAL_WIDTH \
|
||||
(19*8 + HOST_BITS_PER_WIDE_INT)/HOST_BITS_PER_WIDE_INT
|
||||
# else
|
||||
# if HOST_FLOAT_FORMAT != TARGET_FLOAT_FORMAT
|
||||
# define REAL_WIDTH \
|
||||
(7*8 + HOST_BITS_PER_WIDE_INT)/HOST_BITS_PER_WIDE_INT
|
||||
# endif
|
||||
# endif
|
||||
#endif
|
||||
|
||||
#ifndef REAL_WIDTH
|
||||
# if HOST_BITS_PER_WIDE_INT*2 >= MAX_LONG_DOUBLE_TYPE_SIZE
|
||||
# define REAL_WIDTH 2
|
||||
# else
|
||||
# if HOST_BITS_PER_WIDE_INT*3 >= MAX_LONG_DOUBLE_TYPE_SIZE
|
||||
# define REAL_WIDTH 3
|
||||
# else
|
||||
# if HOST_BITS_PER_WIDE_INT*4 >= MAX_LONG_DOUBLE_TYPE_SIZE
|
||||
# define REAL_WIDTH 4
|
||||
# endif
|
||||
# endif
|
||||
# endif
|
||||
#endif /* REAL_WIDTH */
|
||||
|
||||
#if REAL_WIDTH == 1
|
||||
# define CONST_DOUBLE_FORMAT "0ww"
|
||||
#else
|
||||
# if REAL_WIDTH == 2
|
||||
# define CONST_DOUBLE_FORMAT "0ww"
|
||||
# else
|
||||
# if REAL_WIDTH == 3
|
||||
# define CONST_DOUBLE_FORMAT "0www"
|
||||
# else
|
||||
# if REAL_WIDTH == 4
|
||||
# define CONST_DOUBLE_FORMAT "0wwww"
|
||||
# else
|
||||
# if REAL_WIDTH == 5
|
||||
# define CONST_DOUBLE_FORMAT "0wwwww"
|
||||
# else
|
||||
# define CONST_DOUBLE_FORMAT /* nothing - will cause syntax error */
|
||||
# endif
|
||||
# endif
|
||||
# endif
|
||||
# endif
|
||||
#endif
|
||||
|
||||
/* Indexed by rtx code, gives number of operands for an rtx with that code.
|
||||
Does NOT include rtx header data (code and links). */
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue