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SPIRV-Tools/source
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Nathan Gauër ab59dc6087
opt: prevent meld to merge block with MaximalReconvergence (#5557) 
The extension SPV_KHR_maximal_reconvergence adds more constraints
around the merge blocks, and how the control flow can be altered.

The one we address here is explained in the following part of the spec:

  Note: This means that the instructions in a break block will execute as if
  they were still diverged according to the loop iteration. This restricts
  potential transformations an implementation may perform on the IR to match
  shader author expectations. Similarly, instructions in the loop construct
  cannot be moved into the continue construct unless it can be proven that
  invocations are always converged.

Until the optimizer is clever enough to determine if the invocation
have already converged, we shall not meld a block which branches to a
merge block into it, as it might move some instructions outside of the
convergence region.

This behavior being only required with the extension, this commit
behavior change is gated by the extension.
This means using wave operations without the maximal reconvergence
extension might lead to undefined behaviors.

Co-authored-by: Natalie Chouinard <chouinard.nm@gmail.com>
2024-02-06 06:12:00 -05:00
..
diff Add support for LiteralFloat type (#5323) 2023-07-17 11:16:01 -04:00
fuzz Do not define GOOGLE_PROTOBUF_INTERNAL_DONATE_STEAL_INLINE if it is already defined. (#5200) 2023-04-18 15:47:10 -04:00
link linker: Add --use-highest-version option (#5376) 2023-08-21 17:05:33 -06:00
lint cmake: Modernize install(TARGET) usage (#5056) 2023-01-16 10:55:35 -05:00
opt opt: prevent meld to merge block with MaximalReconvergence (#5557) 2024-02-06 06:12:00 -05:00
reduce cmake: Modernize install(TARGET) usage (#5056) 2023-01-16 10:55:35 -05:00
util Remove use of deprecated std::aligned_storage (#5183) 2023-04-06 17:22:28 +02:00
val spirv-val: Add Mesh Primitive Built-In validaiton (#5529) 2024-02-01 14:20:42 -05:00
wasm build: remove last references of c++11 (#5295) 2023-06-28 05:37:55 -07:00
assembly_grammar.cpp Move token version/cap/ext checks from parsing to validation (#5370) 2023-08-10 12:19:12 -04:00
assembly_grammar.h Switch SPIRV-Tools to use spirv.hpp11 internally (#4981) 2022-11-04 17:27:10 -04:00
binary.cpp Add support for LiteralFloat type (#5323) 2023-07-17 11:16:01 -04:00
binary.h Fix endianness of string literals (#4622) 2021-12-08 12:01:26 -05:00
cfa.h Prevent null pointer from being dereferenced (#4971) 2022-10-24 15:16:33 -04:00
CMakeLists.txt Fix iOS / Android CMake builds (#5482) 2023-11-28 10:53:56 -05:00
common_debug_info.h spirv-opt: Switch from Vulkan.DebugInfo to Shader.DebugInfo (#4493) 2021-09-15 14:38:53 -04:00
diagnostic.cpp fix strncpy bound error (#4331) 2021-06-29 10:07:13 -04:00
diagnostic.h Rewrite include guards (#1793) 2018-08-03 08:05:33 -04:00
disassemble.cpp Add support for LiteralFloat type (#5323) 2023-07-17 11:16:01 -04:00
disassemble.h Fix segfault in SpirvTools::Disassemble when printing (#4833) 2022-06-29 12:05:00 -04:00
enum_set.h enumset: add iterator based constructor/insert (#5344) 2023-07-20 17:54:50 +00:00
enum_string_mapping.cpp Cleanup includes. (#1795) 2018-08-03 15:06:09 -04:00
enum_string_mapping.h Switch SPIRV-Tools to use spirv.hpp11 internally (#4981) 2022-11-04 17:27:10 -04:00
ext_inst.cpp Vulkan 1.3 (#4686) 2022-01-25 10:36:08 -05:00
ext_inst.h Fix various source comment (doxygen) typos (#4680) 2022-01-26 15:13:08 -05:00
extensions.cpp NFC: replace EnumSet::ForEach with range-based-for (#5322) 2023-07-13 14:40:47 -04:00
extensions.h NFC: rewrite EnumSet to handle larger enums. (#5289) 2023-07-07 10:41:52 -04:00
instruction.h Switch SPIRV-Tools to use spirv.hpp11 internally (#4981) 2022-11-04 17:27:10 -04:00
latest_version_glsl_std_450_header.h Rewrite include guards (#1793) 2018-08-03 08:05:33 -04:00
latest_version_opencl_std_header.h Rewrite include guards (#1793) 2018-08-03 08:05:33 -04:00
latest_version_spirv_header.h Switch SPIRV-Tools to use spirv.hpp11 internally (#4981) 2022-11-04 17:27:10 -04:00
libspirv.cpp libspirv.cpp: adds c++ api for spvBinaryParse (#5109) 2023-02-14 14:08:20 -05:00
macro.h Rewrite include guards (#1793) 2018-08-03 08:05:33 -04:00
name_mapper.cpp Switch SPIRV-Tools to use spirv.hpp11 internally (#4981) 2022-11-04 17:27:10 -04:00
name_mapper.h Cleanup includes. (#1795) 2018-08-03 15:06:09 -04:00
opcode.cpp SPV_KHR_quad_control (#5547) 2024-01-26 15:49:56 -05:00
opcode.h Switch SPIRV-Tools to use spirv.hpp11 internally (#4981) 2022-11-04 17:27:10 -04:00
operand.cpp Update SPIRV-Headers, add cache control operand kinds (#5406) 2023-09-13 17:43:12 -04:00
operand.h Switch SPIRV-Tools to use spirv.hpp11 internally (#4981) 2022-11-04 17:27:10 -04:00
parsed_operand.cpp Add support for LiteralFloat type (#5323) 2023-07-17 11:16:01 -04:00
parsed_operand.h Cleanup includes. (#1795) 2018-08-03 15:06:09 -04:00
pch_source.cpp Enable precompiled headers for spirv-tools(-shared) and some unit tests (#2026) 2018-11-06 09:26:23 -05:00
pch_source.h Enable precompiled headers for spirv-tools(-shared) and some unit tests (#2026) 2018-11-06 09:26:23 -05:00
print.cpp QNX has support for ANSI ESC codes, default terminal is QANSI. (#5387) 2023-08-30 14:51:03 -04:00
print.h Rewrite include guards (#1793) 2018-08-03 08:05:33 -04:00
software_version.cpp Add missing function parameters in libspirv.h 2018-04-03 10:10:43 -04:00
spirv_constant.h Fix Linker generator ID (#4601) 2021-10-29 10:32:41 -04:00
spirv_definition.h Fix various source comment (doxygen) typos (#4680) 2022-01-26 15:13:08 -05:00
spirv_endian.cpp Cleanup includes. (#1795) 2018-08-03 15:06:09 -04:00
spirv_endian.h Fix various source comment (doxygen) typos (#4680) 2022-01-26 15:13:08 -05:00
spirv_fuzzer_options.cpp spirv-fuzz: Add pass recommendations (#3757) 2020-09-18 15:51:35 +01:00
spirv_fuzzer_options.h spirv-fuzz: Add pass recommendations (#3757) 2020-09-18 15:51:35 +01:00
spirv_optimizer_options.cpp Add —preserve-bindings and —preserve-spec-constants (#2693) 2019-07-10 14:12:19 -04:00
spirv_optimizer_options.h Add —preserve-bindings and —preserve-spec-constants (#2693) 2019-07-10 14:12:19 -04:00
spirv_reducer_options.cpp spirv-reduce: Support reducing a specific function (#3774) 2020-09-11 06:29:43 +01:00
spirv_reducer_options.h spirv-reduce: Support reducing a specific function (#3774) 2020-09-11 06:29:43 +01:00
spirv_target_env.cpp Explicitly #include <utility> in spirv_target_env.cpp (#5159) 2023-03-15 13:15:29 +01:00
spirv_target_env.h Fix various source comment (doxygen) typos (#4680) 2022-01-26 15:13:08 -05:00
spirv_validator_options.cpp spirv-val: Add an option to use friendly names or not (#4951) 2022-09-30 12:22:00 -04:00
spirv_validator_options.h spirv-val: Add an option to use friendly names or not (#4951) 2022-09-30 12:22:00 -04:00
table.cpp Vulkan 1.3 (#4686) 2022-01-25 10:36:08 -05:00
table.h Switch SPIRV-Tools to use spirv.hpp11 internally (#4981) 2022-11-04 17:27:10 -04:00
text_handler.cpp Switch SPIRV-Tools to use spirv.hpp11 internally (#4981) 2022-11-04 17:27:10 -04:00
text_handler.h Remove source/message.h (#1838) 2018-08-14 15:41:21 -04:00
text.cpp Add support for LiteralFloat type (#5323) 2023-07-17 11:16:01 -04:00
text.h Cleanup includes. (#1795) 2018-08-03 15:06:09 -04:00