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sparc.c (function_arg_record_value_3): Fix calculation of the number of integer registers required.

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* config/sparc/sparc.c (function_arg_record_value_3): Fix
        calculation of the number of integer registers required.
        (function_arg_record_value): Likewise.

From-SVN: r39544
This commit is contained in:
Richard Henderson 2001-02-08 10:46:46 -08:00 committed by Richard Henderson
parent 33c4f1746c
commit 0020b823d6
2 changed files with 27 additions and 4 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2001-02-08 Richard Henderson <rth@redhat.com>
* config/sparc/sparc.c (function_arg_record_value_3): Fix
calculation of the number of integer registers required.
(function_arg_record_value): Likewise.
2001-02-08 Jason Merrill <jason@redhat.com>
* diagnostic.c (internal_error): Say "confused" after 1 error, not

25
gcc/config/sparc/sparc.c
View File

@ -4057,6 +4057,9 @@ static void function_arg_record_value_1
static rtx function_arg_record_value
PARAMS ((tree, enum machine_mode, int, int, int));
/* A subroutine of function_arg_record_value. Traverse the structure
recusively and determine how many registers will be required. */
static void
function_arg_record_value_1 (type, startbitpos, parms)
tree type;
@ -4131,7 +4134,8 @@ function_arg_record_value_1 (type, startbitpos, parms)
}
}
/* Handle recursive structure field register assignment. */
/* A subroutine of function_arg_record_value. Assign the bits of the
structure between parms->intoffset and bitpos to integer registers. */
static void
function_arg_record_value_3 (bitpos, parms)
@ -4140,6 +4144,7 @@ function_arg_record_value_3 (bitpos, parms)
{
enum machine_mode mode;
unsigned int regno;
unsigned int startbit, endbit;
int this_slotno, intslots, intoffset;
rtx reg;
@ -4149,7 +4154,9 @@ function_arg_record_value_3 (bitpos, parms)
intoffset = parms->intoffset;
parms->intoffset = -1;
intslots = (bitpos - intoffset + BITS_PER_WORD - 1) / BITS_PER_WORD;
startbit = intoffset & -BITS_PER_WORD;
endbit = (bitpos + BITS_PER_WORD - 1) & -BITS_PER_WORD;
intslots = (endbit - startbit) / BITS_PER_WORD;
this_slotno = parms->slotno + intoffset / BITS_PER_WORD;
intslots = MIN (intslots, SPARC_INT_ARG_MAX - this_slotno);
@ -4183,6 +4190,11 @@ function_arg_record_value_3 (bitpos, parms)
while (intslots > 0);
}
/* A subroutine of function_arg_record_value. Traverse the structure
recursively and assign bits to floating point registers. Track which
bits in between need integer registers; invoke function_arg_record_value_3
to make that happen. */
static void
function_arg_record_value_2 (type, startbitpos, parms)
tree type;
@ -4243,6 +4255,9 @@ function_arg_record_value_2 (type, startbitpos, parms)
}
}
/* Used by function_arg and function_value to implement the complex
Sparc64 structure calling conventions. */
static rtx
function_arg_record_value (type, mode, slotno, named, regbase)
tree type;
@ -4265,10 +4280,12 @@ function_arg_record_value (type, mode, slotno, named, regbase)
if (parms.intoffset != -1)
{
unsigned int startbit, endbit;
int intslots, this_slotno;
intslots = (typesize*BITS_PER_UNIT - parms.intoffset + BITS_PER_WORD - 1)
/ BITS_PER_WORD;
startbit = parms.intoffset & -BITS_PER_WORD;
endbit = (typesize*BITS_PER_UNIT + BITS_PER_WORD - 1) & -BITS_PER_WORD;
intslots = (endbit - startbit) / BITS_PER_WORD;
this_slotno = slotno + parms.intoffset / BITS_PER_WORD;
intslots = MIN (intslots, SPARC_INT_ARG_MAX - this_slotno);