Andrea Di Biagio 2ce3ac8dd8 Teach DAGCombiner how to canonicalize dags according to the rule ...

(shl (zext (shr A, X)), X) => (zext (shl (shr A, X), X)).

The rule only triggers when there are no other uses of the
zext to avoid materializing more instructions.

This helps the DAGCombiner understand that the shl/shr
sequence can then be converted into an and instruction.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@191393 91177308-0d34-0410-b5e6-96231b3b80d8

2013-09-25 19:01:01 +00:00

..

AArch64

llvm/test/CodeGen/AArch64/neon-scalar-reduce-pairwise.ll: Use -mtriple here, or aach64-pecoff might be misassumed on win32 hosts.

2013-09-24 04:14:29 +00:00

ARM

[PR16882] Ignore noreturn definitions when setting isPhysRegUsed.

2013-09-25 00:26:17 +00:00

CPP

[tests] Cleanup initialization of test suffixes.

2013-08-16 00:37:11 +00:00

Generic

[tests] Cleanup initialization of test suffixes.

2013-08-16 00:37:11 +00:00

Hexagon

Debug Info Testing: use null instead of an empty string in context field.

2013-09-09 00:12:17 +00:00

Inputs

Debug Info: add an identifier field to DICompositeType.

2013-08-26 22:39:55 +00:00

Mips

[mips][msa] Added support for matching pckev, and pckod from normal IR (i.e. not intrinsics)

2013-09-24 14:53:25 +00:00

MSP430

[tests] Cleanup initialization of test suffixes.

2013-08-16 00:37:11 +00:00

NVPTX

[NVPTX] Make constant vector test case endian-independent

2013-09-19 13:14:44 +00:00

PowerPC

[PowerPC] Fix problems with large code model (PR17169).

2013-09-17 20:03:25 +00:00

R600

R600: Move code handling literal folding into R600ISelLowering.

2013-09-12 23:44:53 +00:00

SPARC

[Sparc] Add support for TLS in sparc.

2013-09-22 06:48:52 +00:00

SystemZ

[SystemZ] Add unsigned compare-and-branch instructions

2013-09-18 09:56:40 +00:00

Thumb

ARM: Use "dmb sy" for barriers on M-class CPUs

2013-08-28 14:39:19 +00:00

Thumb2

[ARMv8] Prevent generation of deprecated IT blocks on ARMv8 in Thumb mode.

2013-09-09 14:21:49 +00:00

X86

Teach DAGCombiner how to canonicalize dags according to the rule

2013-09-25 19:01:01 +00:00

XCore

XCore handling of thread local lowering

2013-09-09 10:42:11 +00:00