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re PR middle-end/56483 (LTO issue with expanding GIMPLE_COND) 

2013-03-18  Richard Biener  <rguenther@suse.de>

	PR middle-end/56483
	* cfgexpand.c (expand_gimple_cond): Inline gimple_cond_single_var_p
	and implement properly.
	* gimple.h (gimple_cond_single_var_p): Remove.

From-SVN: r196776
This commit is contained in:
Richard Biener 2013-03-18 10:29:43 +00:00 committed by Richard Biener
parent fcac74a177
commit 31348d52c0
3 changed files with 14 additions and 19 deletions
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7
gcc/ChangeLog
View File

@ -1,3 +1,10 @@
2013-03-18 Richard Biener <rguenther@suse.de>
PR middle-end/56483
* cfgexpand.c (expand_gimple_cond): Inline gimple_cond_single_var_p
and implement properly.
* gimple.h (gimple_cond_single_var_p): Remove.
2013-03-18 Richard Biener <rguenther@suse.de>
* tree-data-ref.h (find_data_references_in_loop): Declare.

9
gcc/cfgexpand.c
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@ -1886,9 +1886,14 @@ expand_gimple_cond (basic_block bb, gimple stmt)
be cleaned up by combine. But some pattern matchers like if-conversion
work better when there's only one compare, so make up for this
here as special exception if TER would have made the same change. */
if (gimple_cond_single_var_p (stmt)
&& SA.values
if (SA.values
&& TREE_CODE (op0) == SSA_NAME
&& TREE_CODE (TREE_TYPE (op0)) == BOOLEAN_TYPE
&& TREE_CODE (op1) == INTEGER_CST
&& ((gimple_cond_code (stmt) == NE_EXPR
&& integer_zerop (op1))
|| (gimple_cond_code (stmt) == EQ_EXPR
&& integer_onep (op1)))
&& bitmap_bit_p (SA.values, SSA_NAME_VERSION (op0)))
{
gimple second = SSA_NAME_DEF_STMT (op0);

17
gcc/gimple.h
View File

@ -2750,23 +2750,6 @@ gimple_cond_false_p (const_gimple gs)
return false;
}
/* Check if conditional statement GS is of the form 'if (var != 0)' or
'if (var == 1)' */
static inline bool
gimple_cond_single_var_p (gimple gs)
{
if (gimple_cond_code (gs) == NE_EXPR
&& gimple_cond_rhs (gs) == boolean_false_node)
return true;
if (gimple_cond_code (gs) == EQ_EXPR
&& gimple_cond_rhs (gs) == boolean_true_node)
return true;
return false;
}
/* Set the code, LHS and RHS of GIMPLE_COND STMT from CODE, LHS and RHS. */
static inline void