Dan Gohman e3d920699c Re-enable elimination of unnecessary SUBREG_TO_REG instructions in ... LowerSubregs, and fix an x86-64 isel bug that this exposed. SUBREG_TO_REG for x86-64 implicit zero extension is only safe for isel to generate when the source is known to always have zeros in the high 32 bits. The EXTRACT_SUBREG instruction does not clear the high 32 bits. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54444 91177308-0d34-0410-b5e6-96231b3b80d8		2008-08-07 02:54:50 +00:00
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Analysis	PR2621: Improvements to the SCEV AddRec binomial expansion. This	2008-08-04 23:49:06 +00:00
Archive	Fold the useful features of alist and alist_node into ilist, and	2008-07-28 21:51:04 +00:00
AsmParser	Add vector shifts to the IR, patch by Eli Friedman.	2008-07-29 15:49:41 +00:00
Bitcode	Enable first-class aggregates support.	2008-07-23 00:34:11 +00:00
CodeGen	Re-enable elimination of unnecessary SUBREG_TO_REG instructions in	2008-08-07 02:54:50 +00:00
Debugger	- Re-apply 52748 and friends with fix. GetConstantStringInfo() returns an empty string for ConstantAggregateZero case which surprises selectiondag.	2008-06-30 07:31:25 +00:00
ExecutionEngine	Rewrite JIT handling of GlobalVariables so they	2008-08-07 01:30:15 +00:00
Linker	Reimplement LinkFunctionProtos in terms of GetLinkageResult. This fixes	2008-07-14 07:23:24 +00:00
Support	Fix several const-correctness issues, resolving some -Wcast-qual warnings.	2008-08-05 14:45:15 +00:00
System	Create temp. file in current path.	2008-07-24 00:35:38 +00:00
Target	Re-enable elimination of unnecessary SUBREG_TO_REG instructions in	2008-08-07 02:54:50 +00:00
Transforms	Fix a shufflevector instcombine that was emitting invalid masks indices	2008-08-06 18:17:32 +00:00
VMCore	Fix the AsmWriter to not print extra spaces after parameter attributes.	2008-08-05 15:51:44 +00:00
Makefile	remove attribution from lib Makefiles.	2007-12-29 20:09:26 +00:00