llvm-6502/lib
Vasileios Kalintiris 30b5412d92 [mips][FastISel] Clobber HI0/LO0 registers in MUL instructions.
Summary:
The contents of the HI/LO registers are unpredictable after the execution of
the MUL instruction. In addition to implicitly defining these registers in the
MUL instruction definition, we have to mark those registers as dead too.

Without this the fast register allocator is running out of registers when the
MUL instruction is followed by another one that tries to allocate the AC0
register.

Based on a patch by Reed Kotler.

Reviewers: dsanders, rkotler

Subscribers: llvm-commits, rfuhler

Differential Revision: http://reviews.llvm.org/D9825

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@238755 91177308-0d34-0410-b5e6-96231b3b80d8
2015-06-01 15:48:09 +00:00
..
Analysis [PHITransAddr] Don't translate unreachable values 2015-06-01 00:15:08 +00:00
AsmParser Replace push_back(Constructor(foo)) with emplace_back(foo) for non-trivial types 2015-05-29 19:43:39 +00:00
Bitcode [BitcodeReader] Change an assert to a call to a call to Error() 2015-05-30 00:17:20 +00:00
CodeGen Add address space argument to isLegalAddressingMode 2015-06-01 05:31:59 +00:00
DebugInfo [DWARF] Fix a bug in line info handling 2015-05-31 23:37:04 +00:00
ExecutionEngine Try to fix the build of IntelJITEventListener. 2015-06-01 02:18:14 +00:00
Fuzzer [lib/Fuzzer] make assertions more informative and update comments for the user-supplied mutator 2015-05-30 17:33:13 +00:00
IR Add isConstant argument to MDBuilder::createTBAAStructTagNode 2015-06-01 14:53:55 +00:00
IRReader
LineEditor
Linker
LTO
MC The fragment implies the section, don't store both. 2015-06-01 14:34:40 +00:00
Object Simplify another function that doesn't fail. 2015-06-01 00:27:26 +00:00
Option
Passes
ProfileData
Support [ARMTargetParser] Move IAS arch ext parser. NFC 2015-05-30 10:30:02 +00:00
TableGen [TableGen] Move a couple virtual methods out of line so vtable anchors can be removed. NFC 2015-06-01 06:44:18 +00:00
Target [mips][FastISel] Clobber HI0/LO0 registers in MUL instructions. 2015-06-01 15:48:09 +00:00
Transforms [opaque pointer type] Explicitly store the pointee type of the result of a GEP 2015-06-01 03:09:34 +00:00
CMakeLists.txt
LLVMBuild.txt
Makefile