clang-p2996/llvm/test at 1daf2994de49d1ecba4bee4e6842aa8a564cbc96 - clang-p2996 - Caio's Gitea

caio/clang-p2996

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Florian Hahn fbcf8a8cbb [ConstraintElim] Add (UGE, var, 0) to unsigned system for new vars. (#76262 )

The constraint system used for ConstraintElimination assumes all
varibles to be signed. This can cause missed optimization in the
unsigned system, due to missing the information that all variables are
unsigned (non-negative).

Variables can be marked as non-negative by adding Var >= 0 for all
variables. This is done for arguments on ConstraintInfo construction and
after adding new variables. This handles cases like the ones outlined in
https://discourse.llvm.org/t/why-does-llvm-not-perform-range-analysis-on-integer-values/74341

The original example shared above is now handled without this change,
but adding another variable means that instcombine won't be able to
simplify examples like https://godbolt.org/z/hTnra7zdY

Adding the extra variables comes with a slight compile-time increase
https://llvm-compile-time-tracker.com/compare.php?from=7568b36a2bc1a1e496ec29246966ffdfc3a8b87f&to=641a47f0acce7755e340447386013a2e086f03d9&stat=instructions:u

stage1-O3    stage1-ReleaseThinLTO    stage1-ReleaseLTO-g  stage1-O0-g
 +0.04%           +0.07%                   +0.05%           +0.02%
stage2-O3    stage2-O0-g    stage2-clang
  +0.05%         +0.05%        +0.05%

https://github.com/llvm/llvm-project/pull/76262

2023-12-23 15:53:48 +01:00

..

[SCEV] Ensure shift amount is in range before calling getZExtValue()

2023-12-22 14:16:54 +00:00

[LLVM][IR] Add textual shorthand for specifying constant vector splats. (#74620 )

2023-12-08 18:41:30 +00:00

[C API] Add getters and setters for fast-math flags on relevant instructions (#75123 )

2023-12-12 17:15:05 +01:00

Reland the reland "[PGO][GlobalValue][LTO]In GlobalValues::getGlobalIdentifier, use semicolon as delimiter for local-linkage varibles. " (#75954 )

2023-12-19 12:25:56 -08:00

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[AArch64] Implement spill/fill of predicate pair register classes (#76068 )

2023-12-22 15:54:12 +00:00

Revert "[StackColoring] Delete dead stack slots (#75351 )" (#75655 )

2023-12-15 13:32:39 -08:00

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[Orc][examples] Drop target triple from input for remote debugging test (#74831 )

2023-12-08 22:10:03 +01:00

ExecutionEngine

[ORC] Use dyn_cast to check input type in StaticLibraryDefinitionGenerator.

2023-12-06 14:01:55 -08:00

[IR] Remove FP cast constant expressions (#71408 )

2023-11-07 09:34:16 +01:00

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Instrumentation

[Sanitizers] Don't inline unpoisoning of small stacks when inlining disabled (#75555 )

2023-12-15 17:33:54 -08:00

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[Linker] Do not keep a private member of a non-prevailing comdat group (#69143 )

2023-10-29 01:04:24 +07:00

[LLD] [COFF] Add tests to observe details about LTO and __imp_ prefixes. NFC. (#72764 )

2023-11-21 12:40:11 +02:00

MachineVerifier

[GlobalISel] Add G_PREFETCH (#74863 )

2023-12-11 11:06:50 +00:00

[AArch64] Assembly support for the Armv9.5-A Memory System Extensions (#76237 )

2023-12-22 14:40:29 +00:00

[AMDGPU] Define new targets gfx1200 and gfx1201 (#73133 )

2023-11-23 16:44:05 +00:00

[DX] Add support for program signatures (#67346 )

2023-10-05 10:33:15 -05:00

Report pass name when -llvm-verify-each reports breakage (#71447 )

2023-12-01 10:36:25 -08:00

SafepointIRVerifier

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[symbolizer] Support symbol lookup

2023-11-01 14:41:39 +07:00

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[X86][MC] Support Enc/Dec for EGPR for promoted SHA instruction (#75582 )

2023-12-20 13:54:50 +08:00

Reland the reland "[PGO][GlobalValue][LTO]In GlobalValues::getGlobalIdentifier, use semicolon as delimiter for local-linkage varibles. " (#75954 )

2023-12-19 12:25:56 -08:00

[llvm-exegesis] Fix stack pointer register restoration

2023-12-22 17:55:26 -08:00

[ConstraintElim] Add (UGE, var, 0) to unsigned system for new vars. (#76262 )

2023-12-23 15:53:48 +01:00

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[IR] Add dead_on_unwind attribute (#74289 )

2023-12-14 09:58:14 +01:00

[YAMLParser] Unfold multi-line scalar values (#70898 )

2023-11-10 07:19:24 +07:00

.clang-format

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CMakeLists.txt

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lit.cfg.py

[llvm][Windows] Don't run socket tests on old versions of Windows

2023-12-13 17:33:04 -08:00

lit.site.cfg.py.in

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TestRunner.sh

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