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Simon Pilgrim 2d0f20cc04 [X86] Handle COPYs of physregs better (regalloc hints) 
Enable enableMultipleCopyHints() on X86.

Original Patch by @jonpa:

While enabling the mischeduler for SystemZ, it was discovered that for some reason a test needed one extra seemingly needless COPY (test/CodeGen/SystemZ/call-03.ll). The handling for that is resulted in this patch, which improves the register coalescing by providing not just one copy hint, but a sorted list of copy hints. On SystemZ, this gives ~12500 less register moves on SPEC, as well as marginally less spilling.

Instead of improving just the SystemZ backend, the improvement has been implemented in common-code (calculateSpillWeightAndHint(). This gives a lot of test failures, but since this should be a general improvement I hope that the involved targets will help and review the test updates.

Differential Revision: https://reviews.llvm.org/D38128

llvm-svn: 342578
 		2018-09-19 18:59:08 +00:00
..
anonymous-struct.ll Canonicalize the representation of empty an expression in DIGlobalVariableExpression 2017-08-30 18:06:51 +00:00
array-odr-violation.ll [DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label. 2018-05-09 02:40:45 +00:00
asan-module-ctor.ll [DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label. 2018-05-09 02:40:45 +00:00
asan-module-without-functions.ll Rename __asan_gen_* symbols to ___asan_gen_*. 2018-07-18 22:23:14 +00:00
asm.ll [codeview] Clean up machinery for deferring .cv_loc emission 2018-08-28 23:25:59 +00:00
big-type.ll [CodeView] Refactor / Rewrite TypeSerializer and TypeTableBuilder. 2017-11-28 18:33:17 +00:00
bitfields.ll [CodeView] Omit forward references for unnamed structs and unions 2018-06-11 01:39:34 +00:00
comdat.ll [DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label. 2018-05-09 02:40:45 +00:00
const-unnamed-member.ll [AsmPrinter] Handle qualified unnamed types in CodeView printer 2018-02-27 21:48:41 +00:00
cpp-mangling.ll [DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label. 2018-05-09 02:40:45 +00:00
defer-complete-type.ll [DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label. 2018-05-09 02:40:45 +00:00
dlang.ll [DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label. 2018-05-09 02:40:45 +00:00
enum.ll CodeGen: Don't try to canonicalize Unix-style paths in CodeView debug info. 2018-04-11 18:24:03 +00:00
fp-stack.ll [codeview] Use push_macro to avoid conflicts instead of a prefix 2018-08-16 17:34:31 +00:00
fpo-argsize.ll [DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label. 2018-05-09 02:40:45 +00:00
fpo-csrs.ll [codeview] Improve readobj FPO dumper and pdbutil register names 2018-09-07 18:48:27 +00:00
fpo-funclet.ll [DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label. 2018-05-09 02:40:45 +00:00
fpo-realign-alloca.ll [DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label. 2018-05-09 02:40:45 +00:00
fpo-shrink-wrap.ll [codeview] Improve readobj FPO dumper and pdbutil register names 2018-09-07 18:48:27 +00:00
fpo-stack-protect.ll [DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label. 2018-05-09 02:40:45 +00:00
global-dllimport.ll Canonicalize the representation of empty an expression in DIGlobalVariableExpression 2017-08-30 18:06:51 +00:00
global-type-hashes.ll Resubmit [pdb] Change /DEBUG:GHASH to emit 8 byte hashes." 2018-05-17 22:55:15 +00:00
globals-discarded.ll Canonicalize the representation of empty an expression in DIGlobalVariableExpression 2017-08-30 18:06:51 +00:00
globals.ll [CodeView] Teach clang to emit the .debug$H COFF section. 2017-12-13 22:33:58 +00:00
inheritance.ll [CodeView] Improve debugging of virtual base class member variables 2018-05-14 21:21:22 +00:00
inlining-files.ll [DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label. 2018-05-09 02:40:45 +00:00
inlining-header.ll [codeview] Clean up machinery for deferring .cv_loc emission 2018-08-28 23:25:59 +00:00
inlining-levels.ll [DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label. 2018-05-09 02:40:45 +00:00
inlining-padding.ll [DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label. 2018-05-09 02:40:45 +00:00
inlining-same-name.ll [DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label. 2018-05-09 02:40:45 +00:00
inlining.ll [codeview] Clean up machinery for deferring .cv_loc emission 2018-08-28 23:25:59 +00:00
int8-char-type.ll Canonicalize the representation of empty an expression in DIGlobalVariableExpression 2017-08-30 18:06:51 +00:00
lambda.ll [CodeView] Omit forward references for unnamed structs and unions 2018-06-11 01:39:34 +00:00
lexicalblock.ll [DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label. 2018-05-09 02:40:45 +00:00
lines-bb-start.ll [DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label. 2018-05-09 02:40:45 +00:00
lines-difile.ll [DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label. 2018-05-09 02:40:45 +00:00
lit.local.cfg
…
local-constant.ll [DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label. 2018-05-09 02:40:45 +00:00
local-variable-gap.ll [codeview] Use push_macro to avoid conflicts instead of a prefix 2018-08-16 17:34:31 +00:00
local-variables.ll [codeview] Clean up machinery for deferring .cv_loc emission 2018-08-28 23:25:59 +00:00
long-name.ll [DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label. 2018-05-09 02:40:45 +00:00
long-type-name.ll Canonicalize the representation of empty an expression in DIGlobalVariableExpression 2017-08-30 18:06:51 +00:00
multifile.ll [codeview] Clean up machinery for deferring .cv_loc emission 2018-08-28 23:25:59 +00:00
multifunction.ll [codeview] Clean up machinery for deferring .cv_loc emission 2018-08-28 23:25:59 +00:00
nested-types.ll [CodeView] Emit UdtSourceLine information for enums 2018-03-06 18:20:22 +00:00
no-cus.ll [codeview] Fix assertion failure introduced in r295354 refactoring 2017-05-12 17:02:40 +00:00
parameter-order.ll [DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label. 2018-05-09 02:40:45 +00:00
pieces.ll [X86] Handle COPYs of physregs better (regalloc hints) 2018-09-19 18:59:08 +00:00
pr28747.ll [DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label. 2018-05-09 02:40:45 +00:00
pr37492.ll [codeview] Include record prefix in global type hashing 2018-05-17 20:47:22 +00:00
purge-typedef-udts.ll [DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label. 2018-05-09 02:40:45 +00:00
register-variables.ll [codeview] Use push_macro to avoid conflicts instead of a prefix 2018-08-16 17:34:31 +00:00
retained-types.ll [DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label. 2018-05-09 02:40:45 +00:00
scopes.ll [DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label. 2018-05-09 02:40:45 +00:00
simple.ll [codeview] Clean up machinery for deferring .cv_loc emission 2018-08-28 23:25:59 +00:00
static-methods.ll [DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label. 2018-05-09 02:40:45 +00:00
synthetic.ll [DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label. 2018-05-09 02:40:45 +00:00
tail-call-without-lexical-scopes.ll [DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label. 2018-05-09 02:40:45 +00:00
thunk.ll [DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label. 2018-05-09 02:40:45 +00:00
type-quals.ll [DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label. 2018-05-09 02:40:45 +00:00
typedef.ll [DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label. 2018-05-09 02:40:45 +00:00
types-array-advanced.ll [DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label. 2018-05-09 02:40:45 +00:00
types-array-unsized.ll [codeview] VLAs and unsized arrays should use a size of zero 2017-09-13 21:54:20 +00:00
types-array.ll [codeview] Use push_macro to avoid conflicts instead of a prefix 2018-08-16 17:34:31 +00:00
types-basic.ll [DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label. 2018-05-09 02:40:45 +00:00
types-calling-conv.ll [DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label. 2018-05-09 02:40:45 +00:00
types-cvarargs.ll [DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label. 2018-05-09 02:40:45 +00:00
types-data-members.ll [DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label. 2018-05-09 02:40:45 +00:00
types-nested-class.ll Canonicalize the representation of empty an expression in DIGlobalVariableExpression 2017-08-30 18:06:51 +00:00
types-non-virtual-methods.ll [DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label. 2018-05-09 02:40:45 +00:00
types-ptr-to-member.ll Canonicalize the representation of empty an expression in DIGlobalVariableExpression 2017-08-30 18:06:51 +00:00
types-recursive-struct.ll [DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label. 2018-05-09 02:40:45 +00:00
types-recursive-unnamed.ll [CodeView] Omit forward references for unnamed structs and unions 2018-06-11 01:39:34 +00:00
udts.ll [DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label. 2018-05-09 02:40:45 +00:00
unnamed.ll [CodeView] Omit forward references for unnamed structs and unions 2018-06-11 01:39:34 +00:00
vftables.ll [DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label. 2018-05-09 02:40:45 +00:00
virtual-method-kinds.ll [DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label. 2018-05-09 02:40:45 +00:00
virtual-methods.ll [DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label. 2018-05-09 02:40:45 +00:00
vtable-optzn-array.ll [DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label. 2018-05-09 02:40:45 +00:00