Pete Cooper 20cab35e27 Loop idiom recognizer was replacing too many uses of popcount. ... When spotting that a loop can use ctpop, we were incorrectly replacing all uses of a value with a value derived from ctpop. The bug here was exposed because we were replacing a use prior to the ctpop with the ctpop value and so we have a use before def, i.e., we changed %tobool.5 = icmp ne i32 %num, 0 store i1 %tobool.5, i1* %ptr br i1 %tobool.5, label %for.body.lr.ph, label %for.end to store i1 %1, i1* %ptr %0 = call i32 @llvm.ctpop.i32(i32 %num) %1 = icmp ne i32 %0, 0 br i1 %1, label %for.body.lr.ph, label %for.end Even if we inserted the ctpop so that it dominates the store here, that would still be incorrect. The store doesn’t want the result of ctpop. The fix is very simple, and involves replacing only the branch condition with the ctpop instead of all uses. Reviewed by Hal Finkel. llvm-svn: 242068		2015-07-13 21:25:33 +00:00
..
Analysis	Cleanup after r241809 - remove uncessary call to std::sort	2015-07-13 14:48:24 +00:00
Assembler	Extended syntax of vector version of getelementptr instruction.	2015-07-09 07:42:48 +00:00
Bindings	test: Move target dependent test in their own folder for c API test	2015-06-23 06:46:54 +00:00
Bitcode	Add argmemonly attribute.	2015-07-11 10:30:36 +00:00
BugPoint
CodeGen	[WinEH] Emit the LSDA even if no lpads remain but outlining occurred	2015-07-13 20:41:46 +00:00
DebugInfo	[CodeView] Add support for emitting column information	2015-07-09 00:19:51 +00:00
ExecutionEngine	[Mips] Add support for MCJIT for MIPS32r6	2015-07-06 12:50:55 +00:00
Feature	Revert the new EH instructions	2015-07-10 07:15:17 +00:00
FileCheck
Instrumentation	[SanitizerCoverage] Don't add instrumentation to unreachable blocks.	2015-06-30 23:11:45 +00:00
Integer
JitListener
LibDriver	LibDriver: Fix output path inference.	2015-07-08 19:00:46 +00:00
Linker	Linker: Do not expect comdat to exist in source module.	2015-06-22 21:46:51 +00:00
LTO	Move the personality function from LandingPadInst to Function	2015-06-17 20:52:32 +00:00
MC	[MC] Correctly escape .safeseh's symbol	2015-07-13 18:51:15 +00:00
Object	Add support deterministic output in llvm-ar and make it the default.	2015-07-13 20:38:09 +00:00
Other	[llvm-extract] Drop comdats from declarations	2015-07-06 18:48:02 +00:00
SymbolRewriter
TableGen
tools	[llvm-readobj] Print MIPS PLT table	2015-07-09 18:23:10 +00:00
Transforms	Loop idiom recognizer was replacing too many uses of popcount.	2015-07-13 21:25:33 +00:00
Unit
Verifier	Revert the new EH instructions	2015-07-10 07:15:17 +00:00
YAMLParser
.clang-format
CMakeLists.txt	LibDriver, llvm-lib: introduce.	2015-06-09 21:50:22 +00:00
lit.cfg	LibDriver, llvm-lib: introduce.	2015-06-09 21:50:22 +00:00
lit.site.cfg.in
Makefile
Makefile.tests
TestRunner.sh