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dxcompiler.dll has duplicate static initializers via DxcOptToggles.h #6896

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chrdavis opened this issue Sep 4, 2024 · 1 comment · May be fixed by #6949
Open

dxcompiler.dll has duplicate static initializers via DxcOptToggles.h #6896

chrdavis opened this issue Sep 4, 2024 · 1 comment · May be fixed by #6949
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bug Bug, regression, crash
Milestone
Dormant

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@chrdavis
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chrdavis commented Sep 4, 2024

Static initializers impact performance at load time.

Building latest from github and looking at static initializers shows the same TOGGLE* globals that are getting replicated in multiple compilands from the include/dxc/Support/DxcOptToggles.h header.

D:\DirectXShaderCompiler\VS\tools\clang\tools\dxcompiler\dxcompiler.dir\Release\dxcassembler.obj: [size = 40] hlsl::options::dynamic initializer for 'TOGGLE_DEBUG_NOPS'' D:\DirectXShaderCompiler\VS\tools\clang\tools\dxcompiler\dxcompiler.dir\Release\dxcassembler.obj: [size = 40] hlsl::options::dynamic initializer for 'TOGGLE_ENABLE_AGGRESSIVE_REASSOCIATION''
D:\DirectXShaderCompiler\VS\tools\clang\tools\dxcompiler\dxcompiler.dir\Release\dxcassembler.obj: [size = 40] hlsl::options::dynamic initializer for 'TOGGLE_GVN'' D:\DirectXShaderCompiler\VS\tools\clang\tools\dxcompiler\dxcompiler.dir\Release\dxcassembler.obj: [size = 40] hlsl::options::dynamic initializer for 'TOGGLE_LICM''
D:\DirectXShaderCompiler\VS\tools\clang\tools\dxcompiler\dxcompiler.dir\Release\dxcassembler.obj: [size = 40] hlsl::options::dynamic initializer for 'TOGGLE_LIFETIME_MARKERS'' D:\DirectXShaderCompiler\VS\tools\clang\tools\dxcompiler\dxcompiler.dir\Release\dxcassembler.obj: [size = 40] hlsl::options::dynamic initializer for 'TOGGLE_PARTIAL_LIFETIME_MARKERS''
D:\DirectXShaderCompiler\VS\tools\clang\tools\dxcompiler\dxcompiler.dir\Release\dxcassembler.obj: [size = 40] hlsl::options::dynamic initializer for 'TOGGLE_SINK'' D:\DirectXShaderCompiler\VS\tools\clang\tools\dxcompiler\dxcompiler.dir\Release\dxcassembler.obj: [size = 40] hlsl::options::dynamic initializer for 'TOGGLE_STRUCTURIZE_LOOP_EXITS_FOR_UNROLL''
D:\DirectXShaderCompiler\VS\tools\clang\tools\dxcompiler\dxcompiler.dir\Release\dxcassembler.obj: [size = 40] hlsl::options::dynamic initializer for 'TOGGLE_STRUCTURIZE_RETURNS'' D:\DirectXShaderCompiler\VS\tools\clang\tools\dxcompiler\dxcompiler.dir\Release\dxcompilerobj.obj: [size = 40] hlsl::options::dynamic initializer for 'TOGGLE_DEBUG_NOPS''
D:\DirectXShaderCompiler\VS\tools\clang\tools\dxcompiler\dxcompiler.dir\Release\dxcompilerobj.obj: [size = 40] hlsl::options::dynamic initializer for 'TOGGLE_ENABLE_AGGRESSIVE_REASSOCIATION'' D:\DirectXShaderCompiler\VS\tools\clang\tools\dxcompiler\dxcompiler.dir\Release\dxcompilerobj.obj: [size = 40] hlsl::options::dynamic initializer for 'TOGGLE_GVN''
D:\DirectXShaderCompiler\VS\tools\clang\tools\dxcompiler\dxcompiler.dir\Release\dxcompilerobj.obj: [size = 40] hlsl::options::dynamic initializer for 'TOGGLE_LICM'' D:\DirectXShaderCompiler\VS\tools\clang\tools\dxcompiler\dxcompiler.dir\Release\dxcompilerobj.obj: [size = 40] hlsl::options::dynamic initializer for 'TOGGLE_LIFETIME_MARKERS''
D:\DirectXShaderCompiler\VS\tools\clang\tools\dxcompiler\dxcompiler.dir\Release\dxcompilerobj.obj: [size = 40] hlsl::options::dynamic initializer for 'TOGGLE_PARTIAL_LIFETIME_MARKERS'' D:\DirectXShaderCompiler\VS\tools\clang\tools\dxcompiler\dxcompiler.dir\Release\dxcompilerobj.obj: [size = 40] hlsl::options::dynamic initializer for 'TOGGLE_SINK''
D:\DirectXShaderCompiler\VS\tools\clang\tools\dxcompiler\dxcompiler.dir\Release\dxcompilerobj.obj: [size = 40] hlsl::options::dynamic initializer for 'TOGGLE_STRUCTURIZE_LOOP_EXITS_FOR_UNROLL'' D:\DirectXShaderCompiler\VS\tools\clang\tools\dxcompiler\dxcompiler.dir\Release\dxcompilerobj.obj: [size = 40] hlsl::options::dynamic initializer for 'TOGGLE_STRUCTURIZE_RETURNS''
D:\DirectXShaderCompiler\VS\tools\clang\tools\dxcompiler\dxcompiler.dir\Release\DXCompiler.obj: [size = 40] hlsl::options::dynamic initializer for 'TOGGLE_DEBUG_NOPS'' D:\DirectXShaderCompiler\VS\tools\clang\tools\dxcompiler\dxcompiler.dir\Release\DXCompiler.obj: [size = 40] hlsl::options::dynamic initializer for 'TOGGLE_ENABLE_AGGRESSIVE_REASSOCIATION''
D:\DirectXShaderCompiler\VS\tools\clang\tools\dxcompiler\dxcompiler.dir\Release\DXCompiler.obj: [size = 40] hlsl::options::dynamic initializer for 'TOGGLE_GVN'' D:\DirectXShaderCompiler\VS\tools\clang\tools\dxcompiler\dxcompiler.dir\Release\DXCompiler.obj: [size = 40] hlsl::options::dynamic initializer for 'TOGGLE_LICM''
D:\DirectXShaderCompiler\VS\tools\clang\tools\dxcompiler\dxcompiler.dir\Release\DXCompiler.obj: [size = 40] hlsl::options::dynamic initializer for 'TOGGLE_LIFETIME_MARKERS'' D:\DirectXShaderCompiler\VS\tools\clang\tools\dxcompiler\dxcompiler.dir\Release\DXCompiler.obj: [size = 40] hlsl::options::dynamic initializer for 'TOGGLE_PARTIAL_LIFETIME_MARKERS''
D:\DirectXShaderCompiler\VS\tools\clang\tools\dxcompiler\dxcompiler.dir\Release\DXCompiler.obj: [size = 40] hlsl::options::dynamic initializer for 'TOGGLE_SINK'' D:\DirectXShaderCompiler\VS\tools\clang\tools\dxcompiler\dxcompiler.dir\Release\DXCompiler.obj: [size = 40] hlsl::options::dynamic initializer for 'TOGGLE_STRUCTURIZE_LOOP_EXITS_FOR_UNROLL''
D:\DirectXShaderCompiler\VS\tools\clang\tools\dxcompiler\dxcompiler.dir\Release\DXCompiler.obj: [size = 40] hlsl::options::dynamic initializer for 'TOGGLE_STRUCTURIZE_RETURNS'' D:\DirectXShaderCompiler\VS\tools\clang\tools\dxcompiler\dxcompiler.dir\Release\dxcfilesystem.obj: [size = 40] hlsl::options::dynamic initializer for 'TOGGLE_DEBUG_NOPS''
D:\DirectXShaderCompiler\VS\tools\clang\tools\dxcompiler\dxcompiler.dir\Release\dxcfilesystem.obj: [size = 40] hlsl::options::dynamic initializer for 'TOGGLE_ENABLE_AGGRESSIVE_REASSOCIATION'' D:\DirectXShaderCompiler\VS\tools\clang\tools\dxcompiler\dxcompiler.dir\Release\dxcfilesystem.obj: [size = 40] hlsl::options::dynamic initializer for 'TOGGLE_GVN''
D:\DirectXShaderCompiler\VS\tools\clang\tools\dxcompiler\dxcompiler.dir\Release\dxcfilesystem.obj: [size = 40] hlsl::options::dynamic initializer for 'TOGGLE_LICM'' D:\DirectXShaderCompiler\VS\tools\clang\tools\dxcompiler\dxcompiler.dir\Release\dxcfilesystem.obj: [size = 40] hlsl::options::dynamic initializer for 'TOGGLE_LIFETIME_MARKERS''
D:\DirectXShaderCompiler\VS\tools\clang\tools\dxcompiler\dxcompiler.dir\Release\dxcfilesystem.obj: [size = 40] hlsl::options::dynamic initializer for 'TOGGLE_PARTIAL_LIFETIME_MARKERS'' D:\DirectXShaderCompiler\VS\tools\clang\tools\dxcompiler\dxcompiler.dir\Release\dxcfilesystem.obj: [size = 40] hlsl::options::dynamic initializer for 'TOGGLE_SINK''
D:\DirectXShaderCompiler\VS\tools\clang\tools\dxcompiler\dxcompiler.dir\Release\dxcfilesystem.obj: [size = 40] hlsl::options::dynamic initializer for 'TOGGLE_STRUCTURIZE_LOOP_EXITS_FOR_UNROLL'' D:\DirectXShaderCompiler\VS\tools\clang\tools\dxcompiler\dxcompiler.dir\Release\dxcfilesystem.obj: [size = 40] hlsl::options::dynamic initializer for 'TOGGLE_STRUCTURIZE_RETURNS''

Truncating output due to size limit
@chrdavis chrdavis added bug Bug, regression, crash needs-triage Awaiting triage labels Sep 4, 2024
@damyanp
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damyanp commented Sep 10, 2024 •
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While this is true, I'm going to mark this as dormant since the team is focused on adding hlsl support to clang. We'd welcome PRs that address this issue.

@damyanp damyanp changed the title DXCompiler.dll contains a large number of static initializers dxcompiler.dll has duplicate static initializers via DxcOptToggles.ht Sep 10, 2024
@damyanp damyanp changed the title dxcompiler.dll has duplicate static initializers via DxcOptToggles.ht dxcompiler.dll has duplicate static initializers via DxcOptToggles.h Sep 10, 2024
@damyanp damyanp removed the needs-triage Awaiting triage label Sep 10, 2024
@damyanp damyanp moved this to Triaged in HLSL Triage Sep 10, 2024
@damyanp damyanp added this to the Dormant milestone Sep 10, 2024
@chrdavis chrdavis linked a pull request Oct 7, 2024 that will close this issue
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bug Bug, regression, crash
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Status: Triaged
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@chrdavis @damyanp