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Sanjay Patel 821bba7fda avoid infinite looping when folding vector multiplies of constants (PR22698) 
We were missing a check for the following fold in DAGCombiner:

// fold (fmul (fmul x, c1), c2) -> (fmul x, (fmul c1, c2))

If 'x' is also a constant, then we shouldn't do anything. Otherwise, we could end up swapping the operands back and forth forever.

This should fix:
http://llvm.org/bugs/show_bug.cgi?id=22698

Differential Revision: http://reviews.llvm.org/D7917



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230884 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-01 00:09:35 +00:00
autoconf Revert r230812. Do not break builds for no reason. 2015-02-28 19:43:20 +00:00
bindings [PM] Remove the old 'PassManager.h' header file at the top level of 2015-02-13 10:01:29 +00:00
cmake Minor follow-ups to r229720 suggested on llvmdev 2015-02-27 18:22:46 +00:00
docs [OCaml] Generate documentation again with autoconf buildsystem. 2015-02-28 13:48:23 +00:00
examples [Orc][Kaleidoscope] More tutorial cleanup, a little extra debugging output. 2015-02-26 23:52:42 +00:00
include Fix buildbot issues for MDScope::getFile() after r230871 2015-02-28 21:58:10 +00:00
lib avoid infinite looping when folding vector multiplies of constants (PR22698) 2015-03-01 00:09:35 +00:00
projects
test avoid infinite looping when folding vector multiplies of constants (PR22698) 2015-03-01 00:09:35 +00:00
tools [llvm-pdbdump] Better error handling. 2015-02-28 20:23:18 +00:00
unittests IR: Specialize MDScope::getFile() for MDFile 2015-02-28 21:47:02 +00:00
utils Silence variable set but not used warning in CodeGenRegisters.cpp, NFC. 2015-02-28 15:54:04 +00:00
.arcconfig
.clang-format
.clang-tidy
.gitignore Add one more vim swap file pattern 2015-01-30 21:59:28 +00:00
CMakeLists.txt Minor follow-ups to r229720 suggested on llvmdev 2015-02-27 18:22:46 +00:00
CODE_OWNERS.TXT Assume code ownership for the PS4 to ensure patches get reviewed, per the Developer Policy. 2015-01-28 18:33:39 +00:00
configure Revert r230812. Do not break builds for no reason. 2015-02-28 19:43:20 +00:00
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README.txt Revert test commit 2015-02-04 18:46:00 +00:00

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