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* ipa-inline-analysis.c (eliminated_by_inlining_prob): Cleanup. 

From-SVN: r192991
This commit is contained in:
Jan Hubicka 2012-10-30 17:51:12 +01:00 committed by Jan Hubicka
parent e152d14c2f
commit 63cf72605a
2 changed files with 14 additions and 10 deletions
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4
gcc/ChangeLog
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@ -1,3 +1,7 @@
2012-10-30 Jan Hubicka <jh@suse.cz>
* ipa-inline-analysis.c (eliminated_by_inlining_prob): Cleanup.
2012-10-30 Jan Hubicka <jh@suse.cz>
* tree-ssa-loop-niter.c (number_of_iterations_exit): New parameter

20
gcc/ipa-inline-analysis.c
View File

@ -1548,6 +1548,7 @@ static int
eliminated_by_inlining_prob (gimple stmt)
{
enum gimple_code code = gimple_code (stmt);
enum tree_code rhs_code;
if (!optimize)
return 0;
@ -1560,14 +1561,16 @@ eliminated_by_inlining_prob (gimple stmt)
if (gimple_num_ops (stmt) != 2)
return 0;
rhs_code = gimple_assign_rhs_code (stmt);
/* Casts of parameters, loads from parameters passed by reference
and stores to return value or parameters are often free after
inlining dua to SRA and further combining.
Assume that half of statements goes away. */
if (gimple_assign_rhs_code (stmt) == CONVERT_EXPR
|| gimple_assign_rhs_code (stmt) == NOP_EXPR
|| gimple_assign_rhs_code (stmt) == VIEW_CONVERT_EXPR
|| gimple_assign_rhs_code (stmt) == ADDR_EXPR
if (rhs_code == CONVERT_EXPR
|| rhs_code == NOP_EXPR
|| rhs_code == VIEW_CONVERT_EXPR
|| rhs_code == ADDR_EXPR
|| gimple_assign_rhs_class (stmt) == GIMPLE_SINGLE_RHS)
{
tree rhs = gimple_assign_rhs1 (stmt);
@ -1592,12 +1595,9 @@ eliminated_by_inlining_prob (gimple stmt)
tree op = get_base_address (TREE_OPERAND (inner_rhs, 0));
if (TREE_CODE (op) == PARM_DECL)
rhs_free = true;
else if (TREE_CODE (op) == MEM_REF)
{
op = get_base_address (TREE_OPERAND (op, 0));
if (unmodified_parm (stmt, op))
rhs_free = true;
}
else if (TREE_CODE (op) == MEM_REF
&& unmodified_parm (stmt, TREE_OPERAND (op, 0)))
rhs_free = true;
}
/* When parameter is not SSA register because its address is taken