llvm-6502/test
Nick Lewycky 05da4dd998 Improve 'tail' call marking in TRE. A bootstrap of clang goes from 375k calls marked tail in the IR to 470k, however this improvement does not carry into an improvement of the call/jmp ratio on x86. The most common pattern is a tail call + br to a block with nothing but a 'ret'.
The number of tail call to loop conversions remains the same (1618 by my count).

The new algorithm does a local scan over the use-def chains to identify local "alloca-derived" values, as well as points where the alloca could escape. Then, a visit over the CFG marks blocks as being before or after the allocas have escaped, and annotates the calls accordingly.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@208017 91177308-0d34-0410-b5e6-96231b3b80d8
2014-05-05 23:59:03 +00:00
..
Analysis Reapply "blockfreq: Approximate irreducible control flow" 2014-04-28 20:02:29 +00:00
Assembler
Bindings
Bitcode Add 'musttail' marker to call instructions 2014-04-24 20:14:34 +00:00
BugPoint Revert r206989, "Mark llvm/test/BugPoint/compile-custom.ll as XFAIL:vg_leak." It has been fixed since r207265. 2014-04-27 11:59:33 +00:00
CodeGen R600: Expand i64 ISD:SUB 2014-05-05 21:47:15 +00:00
DebugInfo DebugInfo: Correct the attribute type kind. 2014-05-01 18:31:21 +00:00
ExecutionEngine [ARM64] Disable regression tests for the old JIT. 2014-04-29 15:02:40 +00:00
Feature [IR] Make {extract,insert}element accept an index of any integer type. 2014-05-01 22:12:39 +00:00
FileCheck
Instrumentation [asan] Fix instrumentation of x86 intel syntax inline assembly. 2014-04-24 09:56:15 +00:00
Integer
JitListener
Linker Fix DataLayout::operator==(). 2014-04-22 17:47:03 +00:00
LTO Add an -mattr option to the gold plugin to support subtarget features in LTO 2014-04-25 21:46:51 +00:00
MC Fix spelling. 2014-05-05 17:58:46 +00:00
Object [llvm-readobj] Add support for Mips specific ELF header e_flags. 2014-05-01 11:07:19 +00:00
Other [PM] Add a new-PM-style CGSCC pass manager using the newly added 2014-04-21 11:12:00 +00:00
TableGen [tablegen] !strconcat accepts more than two arguments but this wasn't documented or tested. 2014-05-02 19:25:52 +00:00
tools llvm-cov: Fix handling of line zero appearing in a line table 2014-05-02 20:01:24 +00:00
Transforms Improve 'tail' call marking in TRE. A bootstrap of clang goes from 375k calls marked tail in the IR to 470k, however this improvement does not carry into an improvement of the call/jmp ratio on x86. The most common pattern is a tail call + br to a block with nothing but a 'ret'. 2014-05-05 23:59:03 +00:00
Unit
Verifier IR: Conservatively verify inalloca arguments 2014-04-30 17:22:00 +00:00
YAMLParser
.clang-format
CMakeLists.txt
lit.cfg [Test] Remove substitution for clang 2014-05-05 17:17:27 +00:00
lit.site.cfg.in
Makefile
Makefile.tests
TestRunner.sh