http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59049
Jorn Wolfgang Rennecke changed:
What|Removed |Added
Status|UNCONFIRMED |RESOLVED
Resolution|---
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59049
--- Comment #9 from Jorn Wolfgang Rennecke ---
Author: amylaar
Date: Mon Nov 11 18:57:25 2013
New Revision: 204682
URL: http://gcc.gnu.org/viewcvs?rev=204682&root=gcc&view=rev
Log:
PR middle-end/59049
* expmed.c (emit_store_flag):
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59049
--- Comment #8 from Jorn Wolfgang Rennecke ---
(In reply to Richard Biener from comment #7)
> That is, sth like
>
> Index: gcc/tree-ssa-ter.c
> ===
> --- gcc/tree-ssa-ter.c (revisio
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59049
--- Comment #7 from Richard Biener ---
That is, sth like
Index: gcc/tree-ssa-ter.c
===
--- gcc/tree-ssa-ter.c (revision 204664)
+++ gcc/tree-ssa-ter.c (working copy)
@@ -438,6 +439
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59049
--- Comment #6 from Richard Biener ---
We have
:
# iftmp.2_1 = PHI <"foo"(2), "bar"(3)>
_10 = 3;
_34 = g.5_8 != 1;
_35 = _10 != 3;
in .optimized, as fold-all-builtins manages to produce that from
:
# iftmp.2_1 = PHI <"foo"(3), "ba
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59049
Jorn Wolfgang Rennecke changed:
What|Removed |Added
Keywords||patch
--- Comment #5 from Jorn W
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59049
--- Comment #4 from Andrew Pinski ---
We do have a missed optimization due to fab being done so late.
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59049
--- Comment #3 from Jorn Wolfgang Rennecke ---
Making emit_store_flag return 0 in the case of const-const comparison
gives simpler rtl generation:
(insn 14 13 15 (set (reg:QI 175)
(const_int 1 [0x1])) .../strlen-2.c:29 -1
(nil))
(in
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59049
Jorn Wolfgang Rennecke changed:
What|Removed |Added
CC||pinskia at gcc dot gnu.org,
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59049
--- Comment #1 from Jorn Wolfgang Rennecke ---
Frame 12 shows that at the tree level, one of the comparison operands is an
initialized variable.
(gdb) frame 12
#12 0x083bd9fa in expand_expr_real_1 (exp=, target=0x0,
tmode=VOIDmode, modifier=
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