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r194575 - in /trunk/gcc: ChangeLog dwarf2out.c ...
- From: jakub at gcc dot gnu dot org
- To: gcc-cvs at gcc dot gnu dot org
- Date: Tue, 18 Dec 2012 10:50:47 -0000
- Subject: r194575 - in /trunk/gcc: ChangeLog dwarf2out.c ...
Author: jakub
Date: Tue Dec 18 10:50:47 2012
New Revision: 194575
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=194575
Log:
PR debug/55717
* rtlhooks-def.h (RTL_HOOKS_GEN_LOWPART_NO_EMIT): Define to
gen_lowpart_if_possible.
(gen_lowpart_no_emit_general): Remove prototype.
* rtlhooks.c (gen_lowpart_no_emit_general): Removed.
* simplify-rtx.c (simplify_unary_operation_1,
simplify_binary_operation_1): Continue simplifying if
rtl_hooks.gen_lowpart_no_emit returns NULL_RTX.
* dwarf2out.c (mem_loc_descriptor) <case TRUNCATE>: Handle
truncation like lowpart SUBREG.
* testsuite/g++.dg/opt/pr55717.C: New test.
Added:
trunk/gcc/testsuite/g++.dg/opt/pr55717.C
Modified:
trunk/gcc/ChangeLog
trunk/gcc/dwarf2out.c
trunk/gcc/rtlhooks-def.h
trunk/gcc/rtlhooks.c
trunk/gcc/simplify-rtx.c
trunk/gcc/testsuite/ChangeLog