On 03/25/2013 06:41 PM, H.J. Lu wrote:
This breaks the bootstrap on Linux/x86:
http://gcc.gnu.org/ml/gcc-regression/2013-03/msg00148.html
../../../../../src-trunk/libstdc++-v3/src/c++98/mt_allocator.cc: In
member function 'std::size_t
__gnu_cxx::__pool::_M_get_thread_id()':
../../../../../src-
On 03/25/2013 06:41 PM, H.J. Lu wrote:
This breaks the bootstrap on Linux/x86:
http://gcc.gnu.org/ml/gcc-regression/2013-03/msg00148.html
../../../../../src-trunk/libstdc++-v3/src/c++98/mt_allocator.cc: In
member function 'std::size_t
__gnu_cxx::__pool::_M_get_thread_id()':
../../../../../src-
On Mon, Mar 25, 2013 at 12:08 PM, Jeff Law wrote:
> On 03/21/2013 03:44 AM, Richard Biener wrote:
>>>
>>> + /* If LHS is an SSA_NAME and RHS is a constant and LHS was set
>>> +via a widening type conversion, then we may be able to
>>> record
>>> +additional equivale
On 03/21/2013 03:44 AM, Richard Biener wrote:
+ /* If LHS is an SSA_NAME and RHS is a constant and LHS was set
+via a widening type conversion, then we may be able to record
+additional equivalences. */
+ if (lhs
+ && TREE_CODE (lhs) == SSA_NAM
On 03/21/2013 03:44 AM, Richard Biener wrote:
+
+ if (defstmt
+ && is_gimple_assign (defstmt)
+ && CONVERT_EXPR_CODE_P (gimple_assign_rhs_code (defstmt)))
+ {
+ tree old_rhs = gimple_assign_rhs1 (defstmt);
+
On Thu, Mar 21, 2013 at 5:43 AM, Jeff Law wrote:
>
> This was something I spotted while looking at why certain redundant
> conditionals were not eliminated. In particular this affects the compiler's
> ability to eliminate a variety of gimple checking tests.
>
> Consider an equality comparison
>
>
This was something I spotted while looking at why certain redundant
conditionals were not eliminated. In particular this affects the
compiler's ability to eliminate a variety of gimple checking tests.
Consider an equality comparison
if (a == 10)
true arm
else
else arm
We obviously want
