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Handle misaligned TFmode load/store. 

gcc/

2011-05-30  H.J. Lu  <hongjiu.lu@intel.com>

	PR target/49168
	* config/i386/i386.md (*movtf_internal): Handle misaligned
	load/store.

gcc/testsuite/

2011-05-30  H.J. Lu  <hongjiu.lu@intel.com>

	PR target/49168
	 * gcc.target/i386/pr49168-1.c: New.

From-SVN: r174451
This commit is contained in:
H.J. Lu 2011-05-30 20:00:11 +00:00 committed by H.J. Lu
parent 006a5f38b9
commit a0cd843f4d
4 changed files with 38 additions and 3 deletions
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6
gcc/ChangeLog
View File

@ -1,3 +1,9 @@
2011-05-30 H.J. Lu <hongjiu.lu@intel.com>
PR target/49168
* config/i386/i386.md (*movtf_internal): Handle misaligned
load/store.
2011-05-30 Jakub Jelinek <jakub@redhat.com>
* dwarf2out.c (modified_type_die, gen_reference_type_die): Use

19
gcc/config/i386/i386.md
View File

@ -2842,10 +2842,23 @@
{
case 0:
case 1:
if (get_attr_mode (insn) == MODE_V4SF)
return "%vmovaps\t{%1, %0|%0, %1}";
/* Handle misaligned load/store since we don't have movmisaligntf
pattern. */
if (misaligned_operand (operands[0], TFmode)
|| misaligned_operand (operands[1], TFmode))
{
if (get_attr_mode (insn) == MODE_V4SF)
return "%vmovups\t{%1, %0|%0, %1}";
else
return "%vmovdqu\t{%1, %0|%0, %1}";
}
else
return "%vmovdqa\t{%1, %0|%0, %1}";
{
if (get_attr_mode (insn) == MODE_V4SF)
return "%vmovaps\t{%1, %0|%0, %1}";
else
return "%vmovdqa\t{%1, %0|%0, %1}";
}
case 2:
return standard_sse_constant_opcode (insn, operands[1]);

5
gcc/testsuite/ChangeLog
View File

@ -1,3 +1,8 @@
2011-05-30 H.J. Lu <hongjiu.lu@intel.com>
PR target/49168
* gcc.target/i386/pr49168-1.c: New.
2011-05-30 Jakub Jelinek <jakub@redhat.com>
Eric Botcazou <ebotcazou@adacore.com>

11
gcc/testsuite/gcc.target/i386/pr49168-1.c Normal file
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@ -0,0 +1,11 @@
/* PR target/49168 */
/* { dg-do compile } */
/* { dg-options "-O2 -msse2 -mtune=generic" } */
/* { dg-final { scan-assembler-not "movdqa\[\t \]*%xmm\[0-9\]\+,\[^,\]*" } } */
/* { dg-final { scan-assembler "movdqu\[\t \]*%xmm\[0-9\]\+,\[^,\]*" } } */
void
flt128_va (void *mem, __float128 d)
{
__builtin_memcpy (mem, &d, sizeof (d));
}