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Chris Lattner 12d0bc749f instcombine transforms vector loads that are only used by
extractelement operations into a bitcast of the pointer,
then a gep, then a scalar load.  Disable this when the vector
only has one element, because it leads to infinite loops in
instcombine (PR4908).

This transformation seems like a really bad idea to me, as it
will likely disable CSE of vector load/stores etc and can be
better done in the code generator when profitable.  This
goes all the way back to the first days of packed types,
r25299 specifically.

I'll let those people who care about the performance of vector
code decide what to do with this.

llvm-svn: 81185
2009-09-08 03:44:51 +00:00
autoconf install-sh chmods to 0755 by default, and this causes 'git diff' to show 2009-08-28 16:12:48 +00:00
bindings Fix header comment for bindings/ocaml/llvm/Makefile. 2009-08-30 23:41:20 +00:00
cmake Update lib deps. 2009-09-04 05:07:44 +00:00
docs add some more notes. 2009-09-07 23:33:52 +00:00
examples Allocate the module provider in the Kaleidoscope code on the heap, not the stack, so that it can be properly deleted. Also update the tutorial with the new code. This fixes PR4762, hopefully better than the last time. 2009-08-26 20:58:25 +00:00
include fix pasto 2009-09-08 03:39:55 +00:00
lib instcombine transforms vector loads that are only used by 2009-09-08 03:44:51 +00:00
projects install-sh chmods to 0755 by default, and this causes 'git diff' to show 2009-08-28 16:12:48 +00:00
runtime OptimalEdgeProfiling: Creation of profiles. 2009-09-01 19:03:44 +00:00
test instcombine transforms vector loads that are only used by 2009-09-08 03:44:51 +00:00
tools Add -output-prefix option to bugpoint (to change the default output name). 2009-09-07 19:26:11 +00:00
unittests Update unittests for MDNode uniquing disable. 2009-09-07 04:19:02 +00:00
utils Remove some unused variables and methods warned about by 2009-09-06 08:33:48 +00:00
website
win32 Revert the ConstantInt constructors back to their 2.5 forms where possible, thanks to contexts-on-types. More to come. 2009-07-24 23:12:02 +00:00
Xcode Remove the IA-64 backend. 2009-07-24 00:30:09 +00:00
build-for-llvm-top.sh Patch to build llvm with srcdir != objdir from 2009-01-23 08:42:38 +00:00
CMakeLists.txt revert r78628 and r78803 as these are not needed any more 2009-08-25 23:02:21 +00:00
configure install-sh chmods to 0755 by default, and this causes 'git diff' to show 2009-08-28 16:12:48 +00:00
CREDITS.TXT Add myself to the blame list. 2009-08-20 15:20:15 +00:00
LICENSE.TXT Add regular expression matching support, based on OpenBSD regexec()/regcomp() 2009-08-30 08:24:09 +00:00
llvm.spec.in
Makefile Improve support for cross-hosted builds of LLVM. 2009-09-02 23:52:23 +00:00
Makefile.common
Makefile.config.in Improve support for cross-hosted builds of LLVM. 2009-09-02 23:52:23 +00:00
Makefile.rules Remove some unnecessary -f options. 2009-09-03 16:11:53 +00:00
ModuleInfo.txt Patch to build llvm with srcdir != objdir from 2009-01-23 08:42:38 +00:00
README.txt README.txt: test commit w/blank line appended 2009-03-23 21:00:45 +00:00

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