llvm-mirror/lib
Dan Gohman 74fa421281 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.

llvm-svn: 54444
2008-08-07 02:54:50 +00:00
..
Analysis PR2621: Improvements to the SCEV AddRec binomial expansion. This 2008-08-04 23:49:06 +00:00
Archive
AsmParser Add vector shifts to the IR, patch by Eli Friedman. 2008-07-29 15:49:41 +00:00
Bitcode
CodeGen Re-enable elimination of unnecessary SUBREG_TO_REG instructions in 2008-08-07 02:54:50 +00:00
Debugger
ExecutionEngine Rewrite JIT handling of GlobalVariables so they 2008-08-07 01:30:15 +00:00
Linker
Support Fix several const-correctness issues, resolving some -Wcast-qual warnings. 2008-08-05 14:45:15 +00:00
System
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