Andrew Trick 4781d8ee1c indvars: Linear function test replace should avoid reusing undef. ... Fixes PR13371: indvars pass incorrectly substitutes 'undef' values. I do not like this fix. It's needed until/unless the meaning of undef changes. It attempts to be complete according to the IR spec, but I don't have much confidence in the implementation given the difficulty testing undefined behavior. Worse, this invalidates some of my hard-fought work on indvars and LSR to optimize pointer induction variables. It results benchmark regressions, which I'll track internally. On x86_64 no LTO I see: -3% huffbench -3% 400.perlbench -8% fhourstones My only suggestion for recovering is to change the meaning of undef. If we could trust an arbitrary instruction to produce a some real value that can be manipulated (e.g. incremented) according to non-undef rules, then this case could be easily handled with SCEV. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160421 91177308-0d34-0410-b5e6-96231b3b80d8		2012-07-18 04:35:10 +00:00
..
Analysis	Fix the remaining TCL-style quotes found in the testsuite. This is	2012-07-02 19:09:46 +00:00
Archive	Replace all instances of dg.exp file with lit.local.cfg, since all tests are run with LIT now and now Dejagnu. dg.exp is no longer needed.	2012-02-16 06:28:33 +00:00
Assembler	Fix the remaining TCL-style quotes found in the testsuite. This is	2012-07-02 19:09:46 +00:00
Bindings/Ocaml	Fix the remaining TCL-style quotes found in the testsuite. This is	2012-07-02 19:09:46 +00:00
Bitcode	More replacing of target-dependent intrinsics with target-indepdent	2012-07-18 00:02:16 +00:00
BugPoint	Replace all instances of dg.exp file with lit.local.cfg, since all tests are run with LIT now and now Dejagnu. dg.exp is no longer needed.	2012-02-16 06:28:33 +00:00
CodeGen	More replacing of target-dependent intrinsics with target-indepdent	2012-07-18 00:02:16 +00:00
DebugInfo	Improve behavior of DebugInfoEntryMinimal::getSubprogramName() introduced in r159512.	2012-07-17 15:28:35 +00:00
ExecutionEngine	Add Mips to the list of target architectures for the MCJIT tests.	2012-06-21 20:23:32 +00:00
Feature	Convert the uses of '|&' to use '2>&1 |' instead, which works on old	2012-07-02 18:37:59 +00:00
Instrumentation	[asan] refactor instrumentation to allow merging the crash callbacks (not fully implemented yet, no functionality change except the BB order)	2012-07-16 16:15:40 +00:00
Integer	Convert all tests using TCL-style quoting to use shell-style quoting.	2012-07-02 12:47:22 +00:00
Linker	Convert the uses of '|&' to use '2>&1 |' instead, which works on old	2012-07-02 18:37:59 +00:00
MC	Make x86 asm parser to check for xmm vs ymm for index register in gather instructions. Also fix Intel syntax for gather instructions to use 'DWORD PTR' or 'QWORD PTR' to match gas.	2012-07-18 04:11:12 +00:00
Object	Add relocation types for Hexagon processor; patch by Sidney Manning <sidneym@codeaurora.org>	2012-06-23 14:46:18 +00:00
Other	Fix the remaining TCL-style quotes found in the testsuite. This is	2012-07-02 19:09:46 +00:00
Scripts	This allows hello world to be compiled for Mips 64 direct object.	2012-06-27 22:48:25 +00:00
TableGen	Convert all tests using TCL-style quoting to use shell-style quoting.	2012-07-02 12:47:22 +00:00
Transforms	indvars: Linear function test replace should avoid reusing undef.	2012-07-18 04:35:10 +00:00
Unit
Verifier	Fix the remaining TCL-style quotes found in the testsuite. This is	2012-07-02 19:09:46 +00:00
YAMLParser	Convert the uses of '|&' to use '2>&1 |' instead, which works on old	2012-07-02 18:37:59 +00:00
CMakeLists.txt	llvm/test/CMakeLists.txt: Add llvm-diff to deps.	2012-07-12 10:15:48 +00:00
lit.cfg	llvm/test/lit.cfg: Retweak for Win32 to fix testing.	2012-07-03 03:59:34 +00:00
lit.site.cfg.in	Remove 'site.exp' building from both CMake and configure+make.	2012-06-28 00:16:51 +00:00
Makefile	Remove 'site.exp' building from both CMake and configure+make.	2012-06-28 00:16:51 +00:00
Makefile.tests
TestRunner.sh