Chris Lattner 6cdf2ea98e implement the first part of PR8882: when lowering an inbounds ... gep to explicit addressing, we know that none of the intermediate computation overflows. This could use review: it seems that the shifts certainly wouldn't overflow, but could the intermediate adds overflow if there is a negative index? Previously the testcase would instcombine to: define i1 @test(i64 %i) { %p1.idx.mask = and i64 %i, 4611686018427387903 %cmp = icmp eq i64 %p1.idx.mask, 1000 ret i1 %cmp } now we get: define i1 @test(i64 %i) { %cmp = icmp eq i64 %i, 1000 ret i1 %cmp } git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125271 91177308-0d34-0410-b5e6-96231b3b80d8		2011-02-10 07:11:16 +00:00
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Analysis	Formatting and comment tweaks.	2011-02-09 17:45:03 +00:00
Archive	Archive: Fix temp path names.	2011-01-17 16:43:30 +00:00
AsmParser	implement .ll and .bc support for nsw/nuw on shl and exact on lshr/ashr.	2011-02-07 16:40:21 +00:00
Bitcode	implement .ll and .bc support for nsw/nuw on shl and exact on lshr/ashr.	2011-02-07 16:40:21 +00:00
CodeGen	After 3-addressifying a two-address instruction, update the register maps; add a missing check when considering whether it's profitable to commute. rdar://8977508.	2011-02-10 02:20:55 +00:00
CompilerDriver	Support/Path: Deprecate PathV1::exists and replace all uses with PathV2::fs::exists.	2011-01-10 02:34:23 +00:00
ExecutionEngine	Fix libffi usage when it is on a custom path.	2011-01-28 16:49:05 +00:00
Linker	Correctly merge available_externally and regular definitions when they have	2011-02-01 05:33:52 +00:00
MC	Fix comparator used for looking up previously instantiated EDDisassemblers.	2011-02-09 21:03:19 +00:00
Object	Object: Fix type punned pointer issues by making DataRefImpl a union and using intptr_t.	2011-01-21 02:27:02 +00:00
Support	Rip out realpath() support. It's expensive, and often a bad idea, and	2011-02-09 23:33:15 +00:00
Target	[AVX] Implement 256-bit vector lowering for INSERT_VECTOR_ELT.	2011-02-09 15:32:06 +00:00
Transforms	implement the first part of PR8882: when lowering an inbounds	2011-02-10 07:11:16 +00:00
VMCore	switch the constantexpr, target folder, and IRBuilder interfaces	2011-02-10 07:01:55 +00:00
Makefile	Add LLVMObject Library.	2010-11-15 03:21:41 +00:00