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re PR middle-end/66134 ([CHKP] ICE: Unable to coalesce ssa_names 18 and 17 which are marked as MUST COALESCE)

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gcc/

	PR middle-end/66134
	* tree-chkp.c (chkp_get_orginal_bounds_for_abnormal_copy): New.
	(chkp_maybe_copy_and_register_bounds): Don't copy abnormal copy.

gcc/testsuite/

	PR middle-end/66134
	* gcc.target/i386/mpx/pr66134.c: New test.

From-SVN: r223215
This commit is contained in:
Ilya Enkovich 2015-05-15 09:38:44 +00:00 committed by Ilya Enkovich
parent 95f991707b
commit 2c1f37b57a
3 changed files with 26 additions and 5 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2015-05-15 Ilya Enkovich <enkovich.gnu@gmail.com>
PR middle-end/66134
* tree-chkp.c (chkp_get_orginal_bounds_for_abnormal_copy): New.
(chkp_maybe_copy_and_register_bounds): Don't copy abnormal copy.
2015-05-15 Kyrylo Tkachov <kyrylo.tkachov@arm.com>
* config/aarch64/aarch64.h (AARCH64_TUNE_SLOWMUL): Delete.

5
gcc/testsuite/ChangeLog
View File

@ -1,3 +1,8 @@
2015-05-15 Ilya Enkovich <enkovich.gnu@gmail.com>
PR middle-end/66134
* gcc.target/i386/mpx/pr66134.c: New test.
2015-05-14 Rohit Arul Raj <rohitrulraj@freescale.com>
* gcc.target/powerpc/pr60158.c: New test.

20
gcc/tree-chkp.c
View File

@ -1097,7 +1097,20 @@ chkp_get_bounds_var (tree ptr_var)
return bnd_var;
}
/* If BND is an abnormal bounds copy, return a copied value.
Otherwise return BND. */
static tree
chkp_get_orginal_bounds_for_abnormal_copy (tree bnd)
{
if (bitmap_bit_p (chkp_abnormal_copies, SSA_NAME_VERSION (bnd)))
{
gimple bnd_def = SSA_NAME_DEF_STMT (bnd);
gcc_checking_assert (gimple_code (bnd_def) == GIMPLE_ASSIGN);
bnd = gimple_assign_rhs1 (bnd_def);
}
return bnd;
}
/* Register bounds BND for object PTR in global bounds table.
A copy of bounds may be created for abnormal ssa names.
@ -1141,11 +1154,7 @@ chkp_maybe_copy_and_register_bounds (tree ptr, tree bnd)
/* For abnormal copies we may just find original
bounds and use them. */
if (!abnormal_ptr && !SSA_NAME_IS_DEFAULT_DEF (bnd))
{
gimple bnd_def = SSA_NAME_DEF_STMT (bnd);
gcc_checking_assert (gimple_code (bnd_def) == GIMPLE_ASSIGN);
bnd = gimple_assign_rhs1 (bnd_def);
}
bnd = chkp_get_orginal_bounds_for_abnormal_copy (bnd);
/* For undefined values we usually use none bounds
value but in case of abnormal edge it may cause
coalescing failures. Use default definition of
@ -1177,6 +1186,7 @@ chkp_maybe_copy_and_register_bounds (tree ptr, tree bnd)
copy = make_temp_ssa_name (pointer_bounds_type_node,
gimple_build_nop (),
CHKP_BOUND_TMP_NAME);
bnd = chkp_get_orginal_bounds_for_abnormal_copy (bnd);
assign = gimple_build_assign (copy, bnd);
if (dump_file && (dump_flags & TDF_DETAILS))