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Hal Finkel ccc7090671 Make use of the align parameter attribute for all pointer arguments 
We previously supported the align attribute on all (pointer) parameters, but we
only used it for byval parameters. However, it is completely consistent at the
IR level to treat 'align n' on all pointer parameters as an alignment
assumption on the pointer, and now we wll. Specifically, this causes
computeKnownBits to use the align attribute on all pointer parameters, not just
byval parameters. I've also added an explicit parameter attribute test for this
to test/Bitcode/attributes.ll.

And I've updated the LangRef to document the align parameter attribute (as it
turns out, it was not documented at all previously, although the byval
documentation mentioned that it could be used).

There are (at least) two benefits to doing this:
 - It allows enhancing alignment based on the pointer alignment after inlining callees.
 - It allows simplification of pointer arithmetic.

llvm-svn: 213670
 		2014-07-22 16:58:55 +00:00
..
Analysis Improve BasicAA CS-CS queries (redux) 2014-07-17 01:28:25 +00:00
Assembler Rename metadata llvm.loop.vectorize.unroll to llvm.loop.vectorize.interleave. 2014-07-21 23:11:03 +00:00
Bindings [OCaml] Don't truncate constants over 32 bits in Llvm.const_int. 2014-07-22 13:55:20 +00:00
Bitcode Make use of the align parameter attribute for all pointer arguments 2014-07-22 16:58:55 +00:00
BugPoint llvm/test/BugPoint/compile-custom.ll: Use explicit %python to invoke a test script, compile-custom.ll.py, for shebang-incapable hosts. 2014-07-11 14:44:10 +00:00
CodeGen [mips] Fix two patterns that select i32's (for MIPS32r6) / i64's (for MIPS64r6) 2014-07-22 13:36:02 +00:00
DebugInfo Revert "Recommit r212203: Don't try to construct debug LexicalScopes hierarchy for functions that do not have top level debug information." 2014-07-21 20:45:59 +00:00
ExecutionEngine [RuntimeDyld] Replace a crufty old ARM RuntimeDyld test with a new one that uses 2014-07-10 23:29:11 +00:00
Feature IR: Allow comdats to be applied to globals with internal linkage 2014-07-13 04:56:11 +00:00
FileCheck Add FileCheck -implicit-check-not option to allow stricter tests without adding too many CHECK-NOTs manually. 2014-07-11 12:39:32 +00:00
Instrumentation [ASan] Don't instrument load/stores with !nosanitize metadata. 2014-07-17 18:48:12 +00:00
Integer
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JitListener
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LTO Change the default input for llvm-nm to be a.out instead of standard input 2014-06-23 20:27:53 +00:00
Linker IR: Add COMDATs to the IR 2014-06-27 18:19:56 +00:00
MC X86: drop relocations on __eh_frame sections globally. 2014-07-22 15:47:09 +00:00
Object Add printing of Mach-O stabs in llvm-nm. 2014-07-17 22:47:16 +00:00
Other IR: Fold away compares between GV GEPs and GVs 2014-07-04 22:05:26 +00:00
TableGen Revert of r213521. This change introduced a non-hermetic test (depending on a 2014-07-22 02:32:12 +00:00
Transforms Make use of the align parameter attribute for all pointer arguments 2014-07-22 16:58:55 +00:00
Unit Let test/Unit/lit.cfg add config.shlibdir to $PATH on DLL platforms like cygming. 2014-07-04 05:11:55 +00:00
Verifier IR: Allow comdats to be applied to globals with internal linkage 2014-07-13 04:56:11 +00:00
YAMLParser
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tools llvm-objdump: Handle BSS sections larger than the object file 2014-07-14 16:20:14 +00:00
.clang-format
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CMakeLists.txt OK, NAKAMURA Takumi beat me to this change. So backing out my addition of 2014-05-19 23:26:51 +00:00
Makefile lld test for configure & make 2014-06-06 09:06:25 +00:00
Makefile.tests
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TestRunner.sh
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lit.cfg llvm/test/lit.cfg: Let %python available. 2014-07-11 14:36:39 +00:00
lit.site.cfg.in
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