[Bug rtl-optimization/54300] [4.7, 4.8, 4.9 Regression] regcprop incorrectly looks through parallel register swap operation

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54300 Eric Botcazou changed: What|Removed |Added CC||ebotcazou at gcc dot gnu.org --- Comment

[Bug rtl-optimization/54300] [4.7, 4.8, 4.9 Regression] regcprop incorrectly looks through parallel register swap operation

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54300 --- Comment #11 from Richard Earnshaw --- (In reply to Eric Botcazou from comment #10) > > and regcprop substitues d19 for d18 in insn 27, missing the fact that insn > > 73 is swapping the two values (thus clobbering the old d19 value). > > It's

[Bug rtl-optimization/54300] [4.7, 4.8, 4.9 Regression] regcprop incorrectly looks through parallel register swap operation

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54300 --- Comment #12 from Eric Botcazou --- > Hmm, interesting. Perhaps single_set should not do this if the dead set > clobbers an input. Yes, that seems to be a sensible proposal, but single_set is an old thing.

[Bug rtl-optimization/54300] [4.7, 4.8, 4.9 Regression] regcprop incorrectly looks through parallel register swap operation

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54300 --- Comment #13 from Richard Earnshaw --- Author: rearnsha Date: Wed Nov 20 13:55:04 2013 New Revision: 205117 URL: http://gcc.gnu.org/viewcvs?rev=205117&root=gcc&view=rev Log: PR rtl-optimization/54300 gcc/ PR rtl-optimization/54300 *