Andrea Di Biagio e9c0b5aba6 [DAGCombiner] Teach how to fold sext/aext/zext of constant build vectors. ... This patch teaches the DAGCombiner how to fold a sext/aext/zext dag node when the operand in input is a build vector of constants (or UNDEFs). The inability to fold a sext/zext of a constant build_vector was the root cause of some pcg bugs affecting vselect expansion on x86-64 with AVX support. Before this change, the DAGCombiner only knew how to fold a sext/zext/aext of a ConstantSDNode. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@200234 91177308-0d34-0410-b5e6-96231b3b80d8		2014-01-27 18:45:30 +00:00
..
Analysis	Fix crasher introduced in r200203 and caught by a libc++ buildbot. Don't assume that getMulExpr returns a SCEVMulExpr, it may have simplified it to something else!	2014-01-27 10:47:44 +00:00
Assembler	Bug 18228 - Fix accepting bitcasts between vectors of pointers with a	2014-01-22 19:21:33 +00:00
Bindings	Fix known typos	2014-01-24 17:20:08 +00:00
Bitcode	Report a warning when dropping outdated debug info metadata.	2014-01-16 01:51:12 +00:00
BugPoint
CodeGen	[DAGCombiner] Teach how to fold sext/aext/zext of constant build vectors.	2014-01-27 18:45:30 +00:00
DebugInfo	[Sparc] Add support for parsing DW_CFA_GNU_window_save.	2014-01-26 05:13:44 +00:00
ExecutionEngine	Re-enabling MCJIT tests on ARM	2014-01-25 23:38:08 +00:00
Feature
FileCheck
Instrumentation	[asan] extend asan-coverage (still experimental).	2014-01-17 11:00:30 +00:00
Integer
JitListener
Linker	Verify that attributes are not lost during linking.	2014-01-24 19:20:15 +00:00
LTO	Provide a dummy section to fix a crash with inline assembly in LTO.	2014-01-22 22:11:14 +00:00
MC	MC: Add support for .cfi_startproc simple	2014-01-27 17:20:25 +00:00
Object	Fix "llvm-objdump -d -r" to show relocations inline for ELF files	2014-01-25 17:38:19 +00:00
Other	[PM] Wire up the Verifier for the new pass manager and connect it to the	2014-01-20 11:34:08 +00:00
TableGen	[TableGen] Correctly generate implicit anonymous prototype defs in multiclasses	2014-01-02 20:47:09 +00:00
tools	Rename IMAGE_DLL_CHARACTERISTICS_HIGH_ENTROPY_VA.	2014-01-27 04:22:24 +00:00
Transforms	[vectorize] Initial version of respecting PGO in the vectorizer: treat	2014-01-27 13:11:50 +00:00
Unit
Verifier	[PM] Make the verifier work independently of any pass manager.	2014-01-19 02:22:18 +00:00
YAMLParser
.clang-format
CMakeLists.txt	[CMake] Add llvm-tblgen to dependencies of check-llvm.	2014-01-18 19:01:08 +00:00
lit.cfg	Eliminate inappropriate use of FindProgramByName() from lli	2014-01-22 21:52:35 +00:00
lit.site.cfg.in	Eliminate inappropriate use of FindProgramByName() from lli	2014-01-22 21:52:35 +00:00
Makefile	Eliminate inappropriate use of FindProgramByName() from lli	2014-01-22 21:52:35 +00:00
Makefile.tests
TestRunner.sh