Duncan P. N. Exon Smith 3fdfffbfa3 GVN: Enable value forwarding for calloc ... Enable value forwarding for loads from `calloc()` without an intervening store. This change extends GVN to handle the following case: %1 = tail call noalias i8* @calloc(i64 1, i64 4) %2 = bitcast i8* %1 to i32* ; This load is trivially constant zero %3 = load i32* %2, align 4 This is analogous to the handling for `malloc()` in the same places. `malloc()` returns `undef`; `calloc()` returns a zero value. Note that it is correct to return zero even for out of bounds GEPs since the result of such a GEP would be undefined. Patch by Philip Reames! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210828 91177308-0d34-0410-b5e6-96231b3b80d8		2014-06-12 21:16:19 +00:00
..
Analysis	Reduce verbiage of lit.local.cfg files	2014-06-09 22:42:55 +00:00
Assembler	Allow alias to point to an arbitrary ConstantExpr.	2014-06-03 02:41:57 +00:00
Bindings	Reduce verbiage of lit.local.cfg files	2014-06-09 22:42:55 +00:00
Bitcode	Add a new attribute called 'jumptable' that creates jump-instruction tables for functions marked with this attribute.	2014-06-05 19:29:43 +00:00
BugPoint	Revert r206989, "Mark llvm/test/BugPoint/compile-custom.ll as XFAIL:vg_leak." It has been fixed since r207265.	2014-04-27 11:59:33 +00:00
CodeGen	R600: Mostly remove remaining AMDIL intrinsics.	2014-06-12 21:15:44 +00:00
DebugInfo	[llvm-symbolizer] Fix parsing DW_AT_ranges in Fission skeleton compile unit DIEs.	2014-06-12 18:52:35 +00:00
ExecutionEngine	Reduce verbiage of lit.local.cfg files	2014-06-09 22:42:55 +00:00
Feature	Allow aliases to be unnamed_addr.	2014-06-06 01:20:28 +00:00
FileCheck
Instrumentation	Reduce verbiage of lit.local.cfg files	2014-06-09 22:42:55 +00:00
Integer
JitListener
Linker	Allow aliases to be unnamed_addr.	2014-06-06 01:20:28 +00:00
LTO	Reduce verbiage of lit.local.cfg files	2014-06-09 22:42:55 +00:00
MC	[mips][mips64r6] bc1[tf] are not available on MIPS32r6/MIPS64r6	2014-06-12 15:00:17 +00:00
Object	Use std::error_code instead of llvm::error_code.	2014-06-11 19:05:50 +00:00
Other	Reduce verbiage of lit.local.cfg files	2014-06-09 22:42:55 +00:00
TableGen	Fix error in tablegen when either operand of !if is an empty list.	2014-06-10 20:10:08 +00:00
tools	Reduce verbiage of lit.local.cfg files	2014-06-09 22:42:55 +00:00
Transforms	GVN: Enable value forwarding for calloc	2014-06-12 21:16:19 +00:00
Unit
Verifier	Fix verifier for GlobalAliases to avoid recursing into global initializers.	2014-06-12 01:46:54 +00:00
YAMLParser
.clang-format
CMakeLists.txt	OK, NAKAMURA Takumi beat me to this change. So backing out my addition of	2014-05-19 23:26:51 +00:00
lit.cfg	Reduce verbiage of lit.local.cfg files	2014-06-09 22:42:55 +00:00
lit.site.cfg.in
Makefile	lld test for configure & make	2014-06-06 09:06:25 +00:00
Makefile.tests
TestRunner.sh