Matthias Braun 4e4ba838d9 RegScavenging: Add scavengeRegisterBackwards() ...

Re-apply r276044/r279124/r305516. Fixed a problem where we would refuse
to place spills as the very first instruciton of a basic block and thus
artifically increase pressure (test in
test/CodeGen/PowerPC/scavenging.mir:spill_at_begin)

This is a variant of scavengeRegister() that works for
enterBasicBlockEnd()/backward(). The benefit of the backward mode is
that it is not affected by incomplete kill flags.

This patch also changes
PrologEpilogInserter::doScavengeFrameVirtualRegs() to use the register
scavenger in backwards mode.

Differential Revision: http://reviews.llvm.org/D21885

llvm-svn: 305625

2017-06-17 02:08:18 +00:00

..

Analysis

[ScalarEvolution] Apply Depth limit to getMulExpr

2017-06-15 11:48:21 +00:00

Assembler

Align definition of DW_OP_plus with DWARF spec [3/3]

2017-06-14 13:14:38 +00:00

Bindings

[LLVM-C] [OCaml] Expose Type::subtypes.

2017-06-05 11:49:52 +00:00

Bitcode

Align definition of DW_OP_plus with DWARF spec [3/3]

2017-06-14 13:14:38 +00:00

BugPoint

bugpoint: disabling symbolication of bugpoint-executed programs

2017-06-09 07:29:03 +00:00

CodeGen

RegScavenging: Add scavengeRegisterBackwards()

2017-06-17 02:08:18 +00:00

DebugInfo

Move testcase into the target-appropriate subdirectory.

2017-06-16 23:02:05 +00:00

Examples

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ExecutionEngine

[RuntimeDyld, PowerPC] Fix check for external symbols when detecting reloction overflow

2017-05-23 14:51:18 +00:00

Feature

Add constrained intrinsics for some libm-equivalent operations

2017-05-25 21:31:00 +00:00

FileCheck

[FileCheck] Don't scan past the closing CHECK-DAG for CHECK-NOT inside CHECK-DAG

2017-06-07 12:06:45 +00:00

Instrumentation

Fixing section name for Darwin platforms for sanitizer coverage

2017-06-14 23:40:25 +00:00

Integer

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JitListener

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LibDriver

[llvm-ar] Make llvm-lib behave more like the MSVC archiver

2017-06-12 19:45:35 +00:00

Linker

[Linker] Remove llc usage from link-arm-and-thumb.ll test case.

2017-06-07 09:59:22 +00:00

LTO

Apply summary-based dead stripping to regular LTO modules with summaries.

2017-06-15 17:26:13 +00:00

MC

[WebAssembly] Use __stack_pointer global when writing wasm binary

2017-06-16 23:59:10 +00:00

Object

obj2yaml: Improve error reporting

2017-06-16 23:29:54 +00:00

ObjectYAML

obj2yaml: Improve error reporting

2017-06-16 23:29:54 +00:00

Other

[PM/ThinLTO] Port the ThinLTO pipeline (both components) to the new PM.

2017-06-01 11:39:39 +00:00

SymbolRewriter

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TableGen

[globalisel][tablegen] Add support for (set $dst, 1) and test X86's OptForSize predicate.

2017-05-23 19:33:16 +00:00

ThinLTO/X86

[cfi] CFI-ICall for ThinLTO.

2017-06-16 00:18:29 +00:00

tools

obj2yaml: Improve error reporting

2017-06-16 23:29:54 +00:00

Transforms

[InstCombine] Make FPMathOperator working with ConstantExpression(s).

2017-06-17 00:07:22 +00:00

Unit

[Lit] Fix to prevent creation of "%SystemDrive%" directory on Windows.

2017-05-08 08:55:38 +00:00

Verifier

[Atomics] Rename and change prototype for atomic memcpy intrinsic

2017-06-16 14:43:59 +00:00

YAMLParser

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.clang-format

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CMakeLists.txt

Rename llvm-pdbdump -> llvm-pdbutil.

2017-06-09 20:46:17 +00:00

lit.cfg

[llvm-pdbdump] Don't fail on PDBs with no ID stream.

2017-06-12 21:34:53 +00:00

lit.site.cfg.in

Introduce the new feature "abi-breaking-checks" to satisfy -reverse-iterate in llvm/test/Transforms/Util/PredicateInfo/

2017-06-07 00:22:52 +00:00

TestRunner.sh

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