On Thu, Jul 23, 2015 at 12:29:14PM -0300, Alexandre Oliva wrote: > Yeah. Thanks, I've tested it with this change, and I'm now checking > this in (full patch first; adjusted incremental patch at the end):
Unfortunately it causes about a thousand test fails on powerpc64-linux (at least, it seems to be this patch, I haven't actually checked). Some representative backtraces: /home/segher/src/gcc/gcc/testsuite/gcc.c-torture/compile/pr54713-1.c: In function 'f1': /home/segher/src/gcc/gcc/testsuite/gcc.c-torture/compile/pr54713-1.c:13:1: internal compiler error: in expand_one_stack_var_1, at cfgexpand.c:1221 0x1030eae7 expand_one_stack_var_1 /home/segher/src/gcc/gcc/cfgexpand.c:1221 0x10320a23 expand_one_ssa_partition /home/segher/src/gcc/gcc/cfgexpand.c:1295 0x10320a23 expand_used_vars /home/segher/src/gcc/gcc/cfgexpand.c:1940 0x10322ea3 execute /home/segher/src/gcc/gcc/cfgexpand.c:6084 /home/segher/src/gcc/gcc/testsuite/gcc.c-torture/compile/pr39928-1.c: In function 'vq_nbest': /home/segher/src/gcc/gcc/testsuite/gcc.c-torture/compile/pr39928-1.c:6:1: internal compiler error: in emit_move_insn, at expr.c:3552 0x1046f587 emit_move_insn(rtx_def*, rtx_def*) /home/segher/src/gcc/gcc/expr.c:3551 0x104daa67 assign_parm_setup_reg /home/segher/src/gcc/gcc/function.c:3322 0x104dd063 assign_parms /home/segher/src/gcc/gcc/function.c:3766 0x104e0aa7 expand_function_start(tree_node*) /home/segher/src/gcc/gcc/function.c:5192 0x10322f07 execute /home/segher/src/gcc/gcc/cfgexpand.c:6105 I have the full testsuite logs if you want them. Segher