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fde-glibc.c (find_fde_for_dso): Do a binary search on the unwind region section. 

* config/ia64/fde-glibc.c (find_fde_for_dso): Do a binary
        search on the unwind region section.

        * config/ia64/ia64.md (movbi): Add r/r alternative.
        (cmovdi_internal_astep): Describe all combinations of register
        classes for sources & destinations; remove matching constraints.
        (cmovdi_internal): Likewise.

From-SVN: r37309
This commit is contained in:
Richard Henderson 2000-11-07 17:59:35 -08:00 committed by Richard Henderson
parent 81b75d9629
commit cd5c4048b3
3 changed files with 39 additions and 19 deletions
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8
gcc/ChangeLog
View File

@ -1,5 +1,13 @@
2000-11-07 Richard Henderson <rth@redhat.com>
* config/ia64/fde-glibc.c (find_fde_for_dso): Do a binary
search on the unwind region section.
* config/ia64/ia64.md (movbi): Add r/r alternative.
(cmovdi_internal_astep): Describe all combinations of register
classes for sources & destinations; remove matching constraints.
(cmovdi_internal): Likewise.
* gcc.c (default_compilers) [@cpp-output]: Add -fpreprocessed.
2000-11-07 Richard Henderson <rth@redhat.com>

25
gcc/config/ia64/fde-glibc.c
View File

@ -54,7 +54,8 @@ find_fde_for_dso (Elf64_Addr pc, Elf64_Ehdr *ehdr)
Elf64_Phdr *phdr, *p_unwind;
long n, match;
Elf64_Addr load_base, seg_base;
fde *f;
fde *f_base;
size_t lo, hi;
/* Verify that we are looking at an ELF header. */
if (ehdr->e_ident[0] != 0x7f
@ -88,14 +89,24 @@ find_fde_for_dso (Elf64_Addr pc, Elf64_Ehdr *ehdr)
return NULL;
/* Search for the FDE within the unwind segment. */
/* ??? Ideally ld would have sorted this for us by address. Until
that's fixed, we must do a linear search. */
f = (fde *) (p_unwind->p_vaddr + load_base);
f_base = (fde *) (p_unwind->p_vaddr + load_base);
seg_base = (Elf64_Addr) ehdr;
for (n = p_unwind->p_memsz / sizeof (fde); --n >= 0; ++f)
if (pc >= f->start_offset + seg_base && pc < f->end_offset + seg_base)
return f;
lo = 0;
hi = p_unwind->p_memsz / sizeof (fde);
while (lo < hi)
{
size_t mid = (lo + hi) / 2;
fde *f = f_base + mid;
if (pc < f->start_offset + seg_base)
hi = mid;
else if (pc >= f->end_offset + seg_base)
lo = mid + 1;
else
return f;
}
return NULL;
}

25
gcc/config/ia64/ia64.md
View File

@ -175,8 +175,8 @@
(set_attr "predicable" "no")])
(define_insn "movbi"
[(set (match_operand:BI 0 "nonimmediate_operand" "=c,c,?c,?*r, c,*r,*r,*m")
(match_operand:BI 1 "move_operand" " O,n, c, c,*r, n,*m,*r"))]
[(set (match_operand:BI 0 "nonimmediate_operand" "=c,c,?c,?*r, c,*r,*r,*m,*r")
(match_operand:BI 1 "move_operand" " O,n, c, c,*r, n,*m,*r,*r"))]
""
"@
cmp.ne %0, %I0 = r0, r0
@ -186,8 +186,9 @@
tbit.nz %0, %I0 = %1, 0
adds %0 = %1, r0
ld1%O1 %0 = %1%P1
st1%Q0 %0 = %1%P0"
[(set_attr "type" "A,A,unknown,unknown,I,A,M,M")])
st1%Q0 %0 = %1%P0
mov %0 = %1"
[(set_attr "type" "A,A,unknown,unknown,I,A,M,M,A")])
(define_split
[(set (match_operand:BI 0 "register_operand" "")
@ -4556,16 +4557,16 @@
;; Errata 72 workaround.
(define_insn "*cmovdi_internal_astep"
[(set (match_operand:DI 0 "register_operand"
"=r,*f,*b,r,*f,*b,r,*f,*b")
"=r, r, r, r, r, r, r, r, r, r,*f,*b,*d*e")
(if_then_else:DI
(match_operator 4 "predicate_operator"
[(match_operand:BI 1 "register_operand"
"c,c,c,c,c,c,c,c,c")
" c, c, c, c, c, c, c, c, c, c, c, c, c")
(const_int 0)])
(match_operand:DI 2 "move_operand"
"0,0,0,ri*f*b,rO,r,ri*f*b,rO,r")
"ri,*f,*b,*d*e,ri,ri, ri,*f,*b,*d*e,rO,rO, rK")
(match_operand:DI 3 "move_operand"
"ri*f*b,rO,r,0,0,0,ri*f*b,rO,r")))]
"ri,ri,ri, ri,*f,*b,*d*e,*f,*b,*d*e,rO,rO, rK")))]
"TARGET_A_STEP
&& ia64_move_ok (operands[0], operands[2])
&& ia64_move_ok (operands[0], operands[3])"
@ -4574,16 +4575,16 @@
(define_insn "*cmovdi_internal"
[(set (match_operand:DI 0 "destination_operand"
"=r,m,*f,Q,*b,*d*e,r,m,*f,Q,*b,*d*e,r,m,*f,Q,*b,*d*e")
"= r, r, r, r, r, r, r, r, r, r, m, Q, *f,*b,*d*e")
(if_then_else:DI
(match_operator 4 "predicate_operator"
[(match_operand:BI 1 "register_operand"
"c,c,c,c,c,c,c,c,c,c,c,c,c,c,c,c,c,c")
"c,c,c,c,c,c,c,c,c,c,c,c,c,c,c")
(const_int 0)])
(match_operand:DI 2 "move_operand"
"0,0,0,0,0,0,rim*f*b*d*e,rO,rOQ,*f,rO,rK,rim*f*b*d*e,rO,rOQ,*f,rO,rK")
"rim, *f, *b,*d*e,rim,rim, rim,*f,*b,*d*e,rO,*f,rOQ,rO, rK")
(match_operand:DI 3 "move_operand"
"rim*f*b*d*e,rO,rOQ,*f,rO,rK,0,0,0,0,0,0,rim*f*b*d*e,rO,rOQ,*f,rO,rK")))]
"rim,rim,rim, rim, *f, *b,*d*e,*f,*b,*d*e,rO,*f,rOQ,rO, rK")))]
"! TARGET_A_STEP
&& ia64_move_ok (operands[0], operands[2])
&& ia64_move_ok (operands[0], operands[3])"