Philip Reames b835f3446f Remove dead zero store to calloc initialized memory ... Optimize the following IR: %1 = tail call noalias i8* @calloc(i64 1, i64 4) %2 = bitcast i8* %1 to i32* ; This store is dead and should be removed store i32 0, i32* %2, align 4 Memory returned by calloc is guaranteed to be zero initialized. If the value being stored is the constant zero (and the store is not otherwise observable across threads), we can delete the store. If the store is to an out of bounds address, it is undefined and thus also removable. Reviewed By: nicholas Differential Revision: http://reviews.llvm.org/D3942 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@214897 91177308-0d34-0410-b5e6-96231b3b80d8		2014-08-05 17:48:20 +00:00
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Analysis
Assembler
Bindings	[OCaml] Add Llvm.{string_of_const,const_element}.	2014-08-03 23:54:22 +00:00
Bitcode	UseListOrder: Fix blockaddress use-list order	2014-08-01 22:27:19 +00:00
BugPoint
CodeGen	Revert r214881 because it broke lots of build-bots	2014-08-05 17:36:05 +00:00
DebugInfo	Cleanup this test some more.	2014-08-01 23:01:32 +00:00
ExecutionEngine
Feature
FileCheck
Instrumentation	[ASan] Use metadata to pass source-level information from Clang to ASan.	2014-08-02 00:35:50 +00:00
Integer
JitListener
Linker
LTO
MC	[AVX512] Add masking variant and intrinsics for valignd/q	2014-08-05 17:23:04 +00:00
Object
Other
TableGen	Allow binary and for tblgen math.	2014-08-05 09:43:25 +00:00
tools	InstrProf: Allow multiple functions with the same name	2014-08-01 22:50:07 +00:00
Transforms	Remove dead zero store to calloc initialized memory	2014-08-05 17:48:20 +00:00
Unit
Verifier
YAMLParser
.clang-format
CMakeLists.txt
lit.cfg
lit.site.cfg.in
Makefile
Makefile.tests
TestRunner.sh