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re PR rtl-optimization/61325 (aarch64_be build fails)

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2014-05-29  Vladimir Makarov  <vmakarov@redhat.com>

	PR rtl-optimization/61325
	* lra-constraints.c (process_address): Rename to
	process_address_1.
	(process_address): New function.

2014-05-29  Vladimir Makarov  <vmakarov@redhat.com>

	PR rtl-optimization/61325
	* gcc.target/aarch64/pr61325.c: New.

From-SVN: r211061
This commit is contained in:
Vladimir Makarov 2014-05-29 17:37:23 +00:00 committed by Vladimir Makarov
parent e4c03722c5
commit cc8849a159
4 changed files with 51 additions and 3 deletions
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7
gcc/ChangeLog
View File

@ -1,3 +1,10 @@
2014-05-29 Vladimir Makarov <vmakarov@redhat.com>
PR rtl-optimization/61325
* lra-constraints.c (process_address): Rename to
process_address_1.
(process_address): New function.
2014-05-29 Alan Lawrence <alan.lawrence@arm.com>
* config/aarch64/aarch64-builtins.c (aarch64_types_binopv_qualifiers,

23
gcc/lra-constraints.c
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@ -2784,9 +2784,14 @@ equiv_address_substitution (struct address_info *ad)
Add reloads to the lists *BEFORE and *AFTER. We might need to add
reloads to *AFTER because of inc/dec, {pre, post} modify in the
address. Return true for any RTL change. */
address. Return true for any RTL change.
The function is a helper function which does not produce all
transformations which can be necessary. It does just basic steps.
To do all necessary transformations use function
process_address. */
static bool
process_address (int nop, rtx *before, rtx *after)
process_address_1 (int nop, rtx *before, rtx *after)
{
struct address_info ad;
rtx new_reg;
@ -2986,6 +2991,18 @@ process_address (int nop, rtx *before, rtx *after)
return true;
}
/* Do address reloads until it is necessary. Use process_address_1 as
a helper function. Return true for any RTL changes. */
static bool
process_address (int nop, rtx *before, rtx *after)
{
bool res = false;
while (process_address_1 (nop, before, after))
res = true;
return res;
}
/* Emit insns to reload VALUE into a new register. VALUE is an
auto-increment or auto-decrement RTX whose operand is a register or
memory location; so reloading involves incrementing that location.
@ -3270,7 +3287,7 @@ curr_insn_transform (void)
change_p = true;
lra_update_dup (curr_id, i);
}
if (change_p)
/* If we've changed the instruction then any alternative that
we chose previously may no longer be valid. */

5
gcc/testsuite/ChangeLog
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@ -1,3 +1,8 @@
2014-05-29 Vladimir Makarov <vmakarov@redhat.com>
PR rtl-optimization/61325
* gcc.target/aarch64/pr61325.c: New.
2014-05-29 Alan Lawrence <alan.lawrence@arm.com>
gcc.target/arm/simd/vextQf32_1.c: New file.

19
gcc/testsuite/gcc.target/aarch64/pr61325.c Normal file
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@ -0,0 +1,19 @@
/* { dg-do compile } */
/* { dg-options "-O2" } */
typedef unsigned int wchar_t;
typedef long unsigned int size_t;
size_t
wcstombs(char *s , const wchar_t *pwcs , size_t n)
{
int count = 0;
if (n != 0) {
do {
if ((*s++ = (char) *pwcs++) == 0)
break;
count++;
} while (--n != 0);
}
return count;
}