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10 Commits

Author SHA1 Message Date
Jakob Stoklund Olesen eb12f49fb7 Try again to disable critical edge splitting in CodeGenPrepare. 
The bug that broke i386 linux has been fixed in r115191.

llvm-svn: 115204
 2010-09-30 20:51:52 +00:00
Jakob Stoklund Olesen 415a7a6fec Revert "Disable codegen prepare critical edge splitting. Machine instruction passes now" 
This reverts revision 114633. It was breaking llvm-gcc-i386-linux-selfhost.

It seems there is a downstream bug that is exposed by
-cgp-critical-edge-splitting=0. When that bug is fixed, this patch can go back
in.

Note that the changes to tailcallfp2.ll are not reverted. They were good are
required.

llvm-svn: 114859
 2010-09-27 18:43:48 +00:00
Evan Cheng 794aaa79e2 Disable codegen prepare critical edge splitting. Machine instruction passes now 
break critical edges on demand.

llvm-svn: 114633
 2010-09-23 06:55:34 +00:00
Bob Wilson 3ab552ec74 Reimplement BranchFolding change to avoid tail merging for a 1 instruction 
common tail, except when the OptimizeForSize function attribute is present.
Radar 7338114.

llvm-svn: 85441
 2009-10-28 22:10:20 +00:00
Dan Gohman 40503396da Eliminate more uses of llvm-as and llvm-dis. 
llvm-svn: 81290
 2009-09-08 23:54:48 +00:00
Dale Johannesen 3bfe3b0e76 Considering predecessors of exit blocks gets 
us a little more tail merging.

llvm-svn: 52986
 2008-07-01 21:50:49 +00:00
Chris Lattner a0b1cc41ef this test requires sse2 
llvm-svn: 47331
 2008-02-19 18:07:46 +00:00
Nick Lewycky 0e2e21b8b9 Don't spew stats to stderr. 
llvm-svn: 47308
 2008-02-19 03:11:47 +00:00
Nick Lewycky b54a803a2e Fix up the run line for this new test. 
llc: for the -info-output-file option:  requires a value!

llvm-svn: 47306
 2008-02-19 02:58:36 +00:00
Evan Cheng 634a8f9275 New test. 
llvm-svn: 47302
 2008-02-19 02:09:58 +00:00