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5f599e700e
SPIRV-Tools/source
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Steven Perron 5f599e700e
Fix infinite loop in dead-branch-elimination (#1891) 
* Create structed cfg analysis.

There are lots of optimization that have to traverse the CFG in a
structured order just because it wants to know which constructs a
basic block in contained in.  This adds extra complexity to these
optimizations, for causes too much refactoring of older optimizations.

To help with this problem, I have written an analysis that can give this
information.

* Identify branches breaking from loops.

Dead branch elimination does a search for a conditional branch to the
end of the current selection construct.  This search assumes that the
only way to leave the construct is through the merge node.  But that is
not true.  The code can jump to the merge node of a loop that contains
the construct.

The search needs to take this into consideration.
2018-09-17 13:00:24 -04:00
..
comp Use MakeUnique. (#1837) 2018-08-14 15:01:50 -04:00
link Move make_unique to source/util. (#1836) 2018-08-14 12:44:54 -04:00
opt Fix infinite loop in dead-branch-elimination (#1891) 2018-09-17 13:00:24 -04:00
util Add option for the max id bound. (#1870) 2018-09-10 11:49:41 -04:00
val Add support for VK_KHR_shader_atomic_int64 in validator 2018-09-14 14:07:25 -04:00
assembly_grammar.cpp Cleanup includes. (#1795) 2018-08-03 15:06:09 -04:00
assembly_grammar.h Cleanup includes. (#1795) 2018-08-03 15:06:09 -04:00
binary.cpp Cleanup includes. (#1795) 2018-08-03 15:06:09 -04:00
binary.h Cleanup includes. (#1795) 2018-08-03 15:06:09 -04:00
cfa.h Rewrite include guards (#1793) 2018-08-03 08:05:33 -04:00
CMakeLists.txt Add option for the max id bound. (#1870) 2018-09-10 11:49:41 -04:00
diagnostic.cpp Remove source/message.h (#1838) 2018-08-14 15:41:21 -04:00
diagnostic.h Rewrite include guards (#1793) 2018-08-03 08:05:33 -04:00
disassemble.cpp Use MakeUnique. (#1837) 2018-08-14 15:01:50 -04:00
disassemble.h Rewrite include guards (#1793) 2018-08-03 08:05:33 -04:00
enum_set.h Use MakeUnique. (#1837) 2018-08-14 15:01:50 -04:00
enum_string_mapping.cpp Cleanup includes. (#1795) 2018-08-03 15:06:09 -04:00
enum_string_mapping.h Cleanup includes. (#1795) 2018-08-03 15:06:09 -04:00
ext_inst.cpp Cleanup includes. (#1795) 2018-08-03 15:06:09 -04:00
ext_inst.h Cleanup includes. (#1795) 2018-08-03 15:06:09 -04:00
extensions.cpp Cleanup includes. (#1795) 2018-08-03 15:06:09 -04:00
extensions.h Cleanup includes. (#1795) 2018-08-03 15:06:09 -04:00
extinst.debuginfo.grammar.json Add asm, dis support for DebugInfo extended instruction set 2017-12-22 09:39:36 -05:00
extinst.spv-amd-gcn-shader.grammar.json Fix spelling in SPV_AMD_gcn_shader support 2017-04-03 14:59:18 -04:00
extinst.spv-amd-shader-ballot.grammar.json Add support for SPV AMD extensions 2017-06-21 15:08:07 -04:00
extinst.spv-amd-shader-explicit-vertex-parameter.grammar.json Add support for SPV AMD extensions 2017-06-21 15:08:07 -04:00
extinst.spv-amd-shader-trinary-minmax.grammar.json Add support for SPV AMD extensions 2017-06-21 15:08:07 -04:00
id_descriptor.cpp Cleanup includes. (#1795) 2018-08-03 15:06:09 -04:00
id_descriptor.h Rewrite include guards (#1793) 2018-08-03 08:05:33 -04:00
instruction.h Cleanup includes. (#1795) 2018-08-03 15:06:09 -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 Rewrite include guards (#1793) 2018-08-03 08:05:33 -04:00
libspirv.cpp Add option for the max id bound. (#1870) 2018-09-10 11:49:41 -04:00
macro.h Rewrite include guards (#1793) 2018-08-03 08:05:33 -04:00
name_mapper.cpp Cleanup includes. (#1795) 2018-08-03 15:06:09 -04:00
name_mapper.h Cleanup includes. (#1795) 2018-08-03 15:06:09 -04:00
opcode.cpp Cleanup includes. (#1795) 2018-08-03 15:06:09 -04:00
opcode.h Cleanup includes. (#1795) 2018-08-03 15:06:09 -04:00
operand.cpp Cleanup includes. (#1795) 2018-08-03 15:06:09 -04:00
operand.h Cleanup includes. (#1795) 2018-08-03 15:06:09 -04:00
parsed_operand.cpp Replace asserts with returns 2018-08-08 15:13:04 -04:00
parsed_operand.h Cleanup includes. (#1795) 2018-08-03 15:06:09 -04:00
print.cpp Cleanup includes. (#1795) 2018-08-03 15:06:09 -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 Cleanup includes. (#1795) 2018-08-03 15:06:09 -04:00
spirv_definition.h Cleanup includes. (#1795) 2018-08-03 15:06:09 -04:00
spirv_endian.cpp Cleanup includes. (#1795) 2018-08-03 15:06:09 -04:00
spirv_endian.h Rewrite include guards (#1793) 2018-08-03 08:05:33 -04:00
spirv_optimizer_options.cpp Add option for the max id bound. (#1870) 2018-09-10 11:49:41 -04:00
spirv_optimizer_options.h Add option for the max id bound. (#1870) 2018-09-10 11:49:41 -04:00
spirv_target_env.cpp Cleanup includes. (#1795) 2018-08-03 15:06:09 -04:00
spirv_target_env.h Rewrite include guards (#1793) 2018-08-03 08:05:33 -04:00
spirv_validator_options.cpp Cleanup includes. (#1795) 2018-08-03 15:06:09 -04:00
spirv_validator_options.h Rewrite include guards (#1793) 2018-08-03 08:05:33 -04:00
table.cpp Cleanup includes. (#1795) 2018-08-03 15:06:09 -04:00
table.h Remove source/message.h (#1838) 2018-08-14 15:41:21 -04:00
text_handler.cpp Fix readbility/braces warnings (#1804) 2018-08-07 09:09:47 -04:00
text_handler.h Remove source/message.h (#1838) 2018-08-14 15:41:21 -04:00
text.cpp Remove source/message.h (#1838) 2018-08-14 15:41:21 -04:00
text.h Cleanup includes. (#1795) 2018-08-03 15:06:09 -04:00