llvm-mirror/lib
Quentin Colombet c02e5604f4 [DAGCombiner] Reapply load slicing (192471) with a test that explicitly set sse4.2 support.
This should fix the buildbots.

Original commit message:
[DAGCombiner] Slice a big load in two loads when the element are next to each
other in memory and the target has paired load and performs post-isel loads
combining.

E.g., this optimization will transform something like this:
a = load i64* addr
b = trunc i64 a to i32
c = lshr i64 a, 32
d = trunc i64 c to i32

into:
b = load i32* addr1
d = load i32* addr2
Where addr1 = addr2 +/- sizeof(i32), if the target supports paired load and
performs post-isel loads combining.

One should overload TargetLowering::hasPairedLoad to provide this information.
The default is false.

<rdar://problem/14477220>

llvm-svn: 192476
2013-10-11 18:29:42 +00:00
..
Analysis Rename DataLayout variables TD -> DL 2013-10-03 19:50:01 +00:00
AsmParser Add a GlobalAlias::isValidLinkage to reduce code duplication. 2013-10-09 16:07:32 +00:00
Bitcode AutoUpgrade: upgrade from scalar TBAA format to struct-path aware TBAA format. 2013-09-28 00:22:27 +00:00
CodeGen [DAGCombiner] Reapply load slicing (192471) with a test that explicitly set sse4.2 support. 2013-10-11 18:29:42 +00:00
DebugInfo [DebugInfo] Further simplify DWARFDebugAranges public interface 2013-10-02 07:12:47 +00:00
ExecutionEngine Remove dead code. 2013-10-07 13:54:50 +00:00
IR Debug Info: In DIBuilder, the context field of subprogram is updated to use 2013-10-10 18:40:01 +00:00
IRReader Add 'const' qualifiers to static const char* variables. 2013-07-16 01:17:10 +00:00
Linker Implement function prefix data as an IR feature. 2013-09-16 01:08:15 +00:00
LTO Add a MCTargetStreamer interface. 2013-10-08 13:08:17 +00:00
MC Add a MCTargetStreamer interface. 2013-10-08 13:08:17 +00:00
Object Object/COFF: Rename getXXX{Begin,End} -> xxx_{begin,end}. 2013-09-27 21:47:05 +00:00
Option Fix another mistake in r190442. 2013-09-10 23:22:56 +00:00
Support Fix build on Solaris 11. 2013-10-08 16:12:58 +00:00
TableGen Add an error check for a typo I accidentally made in a td file that caused an assert to fire. 2013-08-20 04:22:09 +00:00
Target [ARM] Fix FP ABI attributes with no VFP enabled. 2013-10-11 16:03:43 +00:00
Transforms Better info when debugging vectorizer 2013-10-11 16:14:39 +00:00
CMakeLists.txt Move LTO support library to a component, allowing it to be tested 2013-09-24 23:52:22 +00:00
LLVMBuild.txt Move LTO support library to a component, allowing it to be tested 2013-09-24 23:52:22 +00:00
Makefile Move LTO support library to a component, allowing it to be tested 2013-09-24 23:52:22 +00:00