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b961a26cec
llvm-6502/test
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Andrew Trick b961a26cec Allow MachineCSE to coalesce trivial subregister copies the same way 
that it coalesces normal copies.

Without this, MachineCSE is powerless to handle redundant operations
with truncated source operands.

This required fixing the 2-addr pass to handle tied subregisters. It
isn't clear what combinations of subregisters can legally be tied, but
the simple case of truncated source operands is now safely handled:

     %vreg11<def> = COPY %vreg1:sub_32bit; GR32:%vreg11 GR64:%vreg1
     %vreg12<def> = COPY %vreg2:sub_32bit; GR32:%vreg12 GR64:%vreg2
     %vreg13<def,tied1> = ADD32rr %vreg11<tied0>, %vreg12<kill>, %EFLAGS<imp-def>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@197414 91177308-0d34-0410-b5e6-96231b3b80d8
2013-12-16 19:36:21 +00:00
..
Analysis
Assembler
Bindings Update Ocaml/vmcore.ml to emit a "Debug Info Version" module flag. 2013-12-02 21:25:56 +00:00
Bitcode Ensure bitcode encoding of global variable attributes stays stable. Patch by Boaz Ouriel. 2013-12-15 11:50:45 +00:00
BugPoint
CodeGen Allow MachineCSE to coalesce trivial subregister copies the same way 2013-12-16 19:36:21 +00:00
DebugInfo DebugInfo: Move type units into the debug_types section with appropriate comdat grouping and type unit headers 2013-12-13 21:33:40 +00:00
ExecutionEngine Remove empty MCJIT/load-object-a.ll since r196641. 2013-12-07 06:17:10 +00:00
Feature
FileCheck
Instrumentation Teach MemoryBuiltins about address spaces 2013-12-14 00:27:48 +00:00
Integer
JitListener
Linker
LTO Resubmit r196544: Apply transformation on OS X 10.9+ and iOS 7.0+: pow(10, x) ―> __exp10(x) 2013-12-12 01:55:04 +00:00
MC Fixed a bug in getARMFixupKindMachOInfo() where three ARM fixup kinds 2013-12-13 22:46:54 +00:00
Object Correct word hyphenations 2013-12-05 05:44:44 +00:00
Other Removed llvm-cov.test from Other folder. 2013-12-12 20:29:54 +00:00
TableGen
tools llvm-cov: Added -b option for branch probabilities. 2013-12-13 01:15:07 +00:00
Transforms There is no exp10 on NetBSD. 2013-12-15 20:36:17 +00:00
Unit
Verifier Grow the stackmap/patchpoint format to hold 64-bit IDs. 2013-12-13 18:37:10 +00:00
YAMLParser
.clang-format
CMakeLists.txt check-llvm: Ask llvm-config about assertion mode, instead of llc. 2013-12-03 23:22:25 +00:00
lit.cfg check-llvm: Ask llvm-config about assertion mode, instead of llc. 2013-12-03 23:22:25 +00:00
lit.site.cfg.in
Makefile
Makefile.tests
TestRunner.sh