[Bug 56326] New: GTR 2 FIA GT Racing Game (Steam) needs HLSL_IR_LOOP

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=56326

Bug ID: 56326
           Summary: GTR 2 FIA GT Racing Game (Steam) needs HLSL_IR_LOOP
           Product: Wine
           Version: 9.2
          Hardware: x86-64
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: -unknown
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: ---

The game GTR2 freezes and throws a fatal error if any race is started. The
problem can be worked around with native d3dx9 (specifically d3dx9_41.dll and
d3dx9_31.dll).

Previous bug reports about HLSL_IR_LOOP (#38583, #55083) maybe these could be
merged.

To reproduce: 
- The included vcredist_x86.exe must be installed. 
- Try to start any race. E.g. "Open Practice" or clicking "Start" after
choosing "Driving School".
- There might be an issue with the game complaining about low video memory. Not
a Wine issue but reported by Windows users too. To work around edit Config.ini
switch VIDEODRIVER=0 to VIDEODRIVER=1 and rerun the configuration tool.

This game was confusingly previously reported as working, but I don't think
this is a regression. The AppDB results are most likely from the older retail
version and not the Steam re-release.

Errors:

012c:err:d3dcompiler:D3DCompile2 Shader log:
012c:err:d3dcompiler:D3DCompile2     <anonymous>:49:19: W5300: Implicit
truncation of vector type.
012c:err:d3dcompiler:D3DCompile2     <anonymous>:54:16: W5300: Implicit
truncation of vector type.
012c:err:d3dcompiler:D3DCompile2     <anonymous>:55:16: W5300: Implicit
truncation of vector type.
012c:err:d3dcompiler:D3DCompile2     <anonymous>:56:18: W5300: Implicit
truncation of vector type.
012c:err:d3dcompiler:D3DCompile2 
012c:fixme:d3dcompiler:D3DCompile2 Ignoring flags 0x10400.
012c:err:d3dcompiler:D3DCompile2 Failed to compile shader, vkd3d result -5.
012c:err:d3dcompiler:D3DCompile2 Shader log:
012c:err:d3dcompiler:D3DCompile2     <anonymous>:53:19: W5300: Implicit
truncation of vector type.
012c:err:d3dcompiler:D3DCompile2     <anonymous>:58:16: W5300: Implicit
truncation of vector type.
012c:err:d3dcompiler:D3DCompile2     <anonymous>:59:16: W5300: Implicit
truncation of vector type.
012c:err:d3dcompiler:D3DCompile2     <anonymous>:60:18: W5300: Implicit
truncation of vector type.
012c:err:d3dcompiler:D3DCompile2     <anonymous>:77:20: W5300: Implicit
truncation of vector type.
012c:err:d3dcompiler:D3DCompile2     <anonymous>:78:1: E5017: Aborting due to
not yet implemented feature: Instruction type HLSL_IR_LOOP.
012c:err:d3dcompiler:D3DCompile2