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* [Bug 79575] New: [radeonsi] Wine's d3d8 test crashes in SITargetLowering::analyzeImmediate
@ 2014-06-03  7:56 bugzilla-daemon
  2014-08-08  1:36 ` [Bug 79575] " bugzilla-daemon
                   ` (11 more replies)
  0 siblings, 12 replies; 13+ messages in thread
From: bugzilla-daemon @ 2014-06-03  7:56 UTC (permalink / raw)
  To: dri-devel


[-- Attachment #1.1: Type: text/plain, Size: 11646 bytes --]

https://bugs.freedesktop.org/show_bug.cgi?id=79575

          Priority: medium
            Bug ID: 79575
          Assignee: dri-devel@lists.freedesktop.org
           Summary: [radeonsi] Wine's d3d8 test crashes in
                    SITargetLowering::analyzeImmediate
          Severity: normal
    Classification: Unclassified
                OS: Linux (All)
          Reporter: ansla80@yahoo.com
          Hardware: x86-64 (AMD64)
            Status: NEW
           Version: git
         Component: Drivers/Gallium/radeonsi
           Product: Mesa

I'm using both mesa and llvm from git, checked out yesterday, but I could also
reprodce it with mesa 10.1.4 and llvm 3.4.1.

OpenGL core profile version string: 3.3 (Core Profile) Mesa 10.3.0-devel
(git-84e0a5c)

When I run make test -C dlls/d3d8/tests I get:

Unhandled exception: denormal float operand in 32-bit code (0x7abce773).
Register dump:
 CS:0023 SS:002b DS:002b ES:002b FS:0063 GS:006b
 EIP:7abce773 ESP:00329940 EBP:00329a08 EFLAGS:00210206(  R- --  I   - -P- )
 EAX:0000007f EBX:7b7ee000 ECX:00000020 EDX:0000008f
 ESI:00000000 EDI:00000008
Stack dump:
0x00329940:  00000000 ffffffff 7a8c99d9 0000007f
0x00329950:  7abce6f7 7b7ee000 00000000 7abd200b
0x00329960:  7cd69238 7cb81558 ffffffff ffffffff
0x00329970:  ffffffff ffffffff ffffffff ffffffff
0x00329980:  ffffffff ffffffff ffffffff 003299e4
0x00329990:  0001ffff 00000008 00000000 ffffff00
Backtrace:
=>0 0x7abce773
_ZNK4llvm16SITargetLowering16analyzeImmediateEPKNS_6SDNodeE+0x83() in
libllvm-3.5svn.so (0x00329a08)
  1 0x7abd200b
_ZNK4llvm16SITargetLowering12foldOperandsEPNS_13MachineSDNodeERNS_12SelectionDAGE+0x12a()
in libllvm-3.5svn.so (0x00329a08)
  2 0x7abd2cf0
_ZNK4llvm16SITargetLowering15PostISelFoldingEPNS_13MachineSDNodeERNS_12SelectionDAGE+0x7f()
in libllvm-3.5svn.so (0x7cb71c80)
  3 0x7ab7a915
_ZN12_GLOBAL__N_118AMDGPUDAGToDAGISel18PostprocessISelDAGEv+0x64() in
libllvm-3.5svn.so (0x7cb81438)
  4 0x7a981176
_ZNK4llvm14TargetLowering27EmitInstrWithCustomInserterEPNS_12MachineInstrEPNS_17MachineBasicBlockE+0x625()
in libllvm-3.5svn.so (0x7cd7e848)
  5 0x7a9889b1 _ZN4llvm16SelectionDAGISel17CodeGenAndEmitDAGEv+0x240() in
libllvm-3.5svn.so (0x00329b5c)
  6 0x7a988da4
_ZN4llvm16SelectionDAGISel16SelectBasicBlockENS_14ilist_iteratorIKNS_11InstructionEEES4_Rb+0xc3()
in libllvm-3.5svn.so (0x00329bb8)
  7 0x7a98bf6c
_ZN4llvm16SelectionDAGISel20SelectAllBasicBlocksERKNS_8FunctionE+0x51b() in
libllvm-3.5svn.so (0x00329cd8)
  8 0x7a98d5c5
_ZN4llvm16SelectionDAGISel20runOnMachineFunctionERNS_15MachineFunctionE+0x474()
in libllvm-3.5svn.so (0x00000005)
  9 0x7b152744
_ZN4llvm19MachineFunctionPass13runOnFunctionERNS_8FunctionE+0x73() in
libllvm-3.5svn.so (0x7cd7c878)
  10 0x7ad96ba3 _ZN4llvm13FPPassManager13runOnFunctionERNS_8FunctionE+0x202()
in libllvm-3.5svn.so (0x00329e58)
  11 0x7ad96ef8 _ZN4llvm13FPPassManager11runOnModuleERNS_6ModuleE+0x37() in
libllvm-3.5svn.so (0x7cd72540)
  12 0x7ad97204 _ZN4llvm6legacy15PassManagerImpl3runERNS_6ModuleE+0x2f3() in
libllvm-3.5svn.so (0x7cd70798)
  13 0x7ad973c6 _ZN4llvm6legacy11PassManager3runERNS_6ModuleE+0x25() in
libllvm-3.5svn.so (0x7cc95598)
  14 0x7b325762
_ZL21LLVMTargetMachineEmitP23LLVMOpaqueTargetMachineP16LLVMOpaqueModuleRN4llvm21formatted_raw_ostreamE19LLVMCodeGenFileTypePPc+0xc1()
in libllvm-3.5svn.so (0x7cc95598)
  15 0x7b325980 LLVMTargetMachineEmitToMemoryBuffer+0x14f() in
libllvm-3.5svn.so (0x00329fb0)
  16 0x7d99f225 radeon_llvm_compile+0x1d4() in radeonsi_dri.so (0x7b7f6b20)
  17 0x7d9abbbd si_compile_llvm+0xa4() in radeonsi_dri.so (0x0032e274)
  18 0x7d9ac4c3 si_pipe_shader_create+0x5ea() in radeonsi_dri.so (0x0032e274)
  19 0x7d9b2684 si_shader_select+0x2b3() in radeonsi_dri.so (0x7cd79040)
  20 0x7d9b279c si_create_shader_state+0x7b() in radeonsi_dri.so (0x7cc80b58)
  21 0x7dc22fe3 ureg_create_shader+0x62() in radeonsi_dri.so (0x7cbe4088)
  22 0x7dc42932 util_make_vertex_passthrough_shader_with_so+0x2f1() in
radeonsi_dri.so (0x0032ee78)
  23 0x7dc2ca2d util_blitter_create+0x5bc() in radeonsi_dri.so (0x7ccb8808)
  24 0x7d9a6174 si_create_context+0x143() in radeonsi_dri.so (0x7cb43950)
  25 0x7db25aa7 st_api_create_context+0x76() in radeonsi_dri.so (0x7cb43414)
  26 0x7d9b5829 dri_create_context+0x1d8() in radeonsi_dri.so (0x7cb43414)
  27 0x7d98bfd5 driCreateContextAttribs+0x32c() in radeonsi_dri.so (0x00000001)
  28 0x7e0778b3 dri2_create_context_attribs+0x1a2() in libgl.so.1 (0x7cc94cc0)
  29 0x7e04b92d glXCreateContextAttribsARB+0x1ac() in libgl.so.1 (0x0032f3b8)
  30 0x7e35d818 create_glxcontext+0x73() in winex11 (0x0032f408)
  31 0x7e3601f5 X11DRV_wglCreateContextAttribsARB+0x34a() in winex11
(0x0032f488)
  32 0x7e9ace10 wglCreateContextAttribsARB+0xa8() in opengl32 (0x0032f4c8)
  33 0x7ea665cd context_create+0x7a7() in wined3d (0x0032f6e8)
  34 0x7eb25585 swapchain_init+0x771() in wined3d (0x0032f828)
  35 0x7eb25d54 wined3d_swapchain_create+0xed() in wined3d (0x0032f8a8)
  36 0x7efea631 swapchain_init+0x5b() in d3d8 (0x0032f8f8)
  37 0x7efea728 d3d8_swapchain_create+0x67() in d3d8 (0x0032f948)
  38 0x7efe6b30 device_parent_create_swapchain+0xa2() in d3d8 (0x0032f9a8)
  39 0x7ea757c5 wined3d_device_init_3d+0x266() in wined3d (0x0032fa68)
  40 0x7efe6efc device_init+0x30e() in d3d8 (0x0032fb38)
  41 0x7efe85c8 d3d8_CreateDevice+0x121() in d3d8 (0x0032fbb8)
  42 0x7ebb98f2 test_fpu_setup+0x38f() in d3d8_test (0x0032fc68)
  43 0x7ebce0a8 func_device+0x148() in d3d8_test (0x0032fcc8)
  44 0x7ebefc17 run_test+0x9e() in d3d8_test (0x0032fd28)
  45 0x7ebf0006 main+0x210() in d3d8_test (0x0032fdd8)
  46 0x7ebf00a0 __wine_spec_exe_entry+0x7f(peb=<couldn't compute location>)
[/home/andrei/x/wine/dlls/winecrt0/exe_entry.c:36] in d3d8_test (0x0032fe18)
  47 0x7b8641d4 call_process_entry+0xb() in kernel32 (0x0032fe38)
  48 0x7b864321 start_process+0x14a() in kernel32 (0x0032fe98)
  49 0x7bc870c0 call_thread_func_wrapper+0xb() in ntdll (0x0032feb8)
  50 0x7bc87109 call_thread_func+0x3e() in ntdll (0x0032ff98)
  51 0x7bc8709e call_thread_entry_point+0x11() in ntdll (0x0032ffb8)
  52 0x7bc5a1f5 start_process+0x23() in ntdll (0x0032ffe8)
  53 0xf7570a15 wine_call_on_stack+0x1c() in libwine.so.1 (0x00000000)
  54 0xf75709f3 wine_switch_to_stack+0x2a() in libwine.so.1 (0xff9c1058)
  55 0x7bc5a4fc LdrInitializeThunk+0x306() in ntdll (0xff9c10e8)
  56 0x7b864b64 __wine_kernel_init+0x67d() in kernel32 (0xff9c1fa8)
  57 0x7bc5acde __wine_process_init+0x156() in ntdll (0xff9c2008)
  58 0xf756f6a0 wine_init+0x140() in libwine.so.1 (0xff9c2048)
  59 0x7bf0118b main+0x132() in <wine-loader> (0xff9c2478)
  60 0xf7381443 __libc_start_main+0xf2() in libc.so.6 (0x00000000)
0x7abce773 _ZNK4llvm16SITargetLowering16analyzeImmediateEPKNS_6SDNodeE+0x83 in
libllvm-3.5svn.so: <bad instruction>
Modules:
Module    Address            Debug info    Name (72 modules)
ELF    7a4d0000-7b800000    Dwarf           libllvm-3.5svn.so
ELF    7b800000-7ba60000    Dwarf           kernel32<elf>
  \-PE    7b810000-7ba60000    \               kernel32
ELF    7bc00000-7bcef000    Dwarf           ntdll<elf>
  \-PE    7bc10000-7bcef000    \               ntdll
ELF    7bf00000-7bf04000    Dwarf           <wine-loader>
ELF    7cf58000-7cf7d000    Deferred        imm32<elf>
  \-PE    7cf60000-7cf7d000    \               imm32
ELF    7d020000-7d026000    Deferred        libtxc_dxtn.so
ELF    7d828000-7d830000    Deferred        libffi.so.6
ELF    7d830000-7d84b000    Deferred        libgcc_s.so.1
ELF    7d940000-7d94e000    Deferred        libdrm_radeon.so.1
ELF    7d950000-7d969000    Deferred        libelf.so.1
ELF    7d970000-7dfda000    Dwarf           radeonsi_dri.so
ELF    7dfe0000-7dfe9000    Deferred        librt.so.1
ELF    7dff0000-7e005000    Deferred        libudev.so.1
ELF    7e008000-7e014000    Deferred        libdrm.so.2
ELF    7e018000-7e01d000    Deferred        libxcb-dri2.so.0
ELF    7e020000-7e037000    Deferred        libxcb-glx.so.0
ELF    7e038000-7e0c1000    Dwarf           libgl.so.1
ELF    7e100000-7e106000    Deferred        libxfixes.so.3
ELF    7e108000-7e113000    Deferred        libxcursor.so.1
ELF    7e118000-7e129000    Deferred        libxi.so.6
ELF    7e130000-7e134000    Deferred        libxcomposite.so.1
ELF    7e138000-7e143000    Deferred        libxrandr.so.2
ELF    7e148000-7e153000    Deferred        libxrender.so.1
ELF    7e158000-7e15f000    Deferred        libxxf86vm.so.1
ELF    7e160000-7e164000    Deferred        libxinerama.so.1
ELF    7e168000-7e189000    Deferred        libxcb.so.1
ELF    7e190000-7e2c8000    Deferred        libx11.so.6
ELF    7e2c8000-7e2db000    Deferred        libxext.so.6
ELF    7e2e0000-7e2e2000    Deferred        libx11-xcb.so.1
ELF    7e2e8000-7e2ec000    Deferred        libxdamage.so.1
ELF    7e2f0000-7e309000    Deferred        libglapi.so.0
ELF    7e318000-7e3bb000    Dwarf           winex11<elf>
  \-PE    7e320000-7e3bb000    \               winex11
ELF    7e3c0000-7e3e8000    Deferred        libexpat.so.1
ELF    7e3e8000-7e423000    Deferred        libfontconfig.so.1
ELF    7e428000-7e45f000    Deferred        libpng16.so.16
ELF    7e460000-7e501000    Deferred        libfreetype.so.6
ELF    7e508000-7e50f000    Deferred        libxdmcp.so.6
ELF    7e510000-7e514000    Deferred        libxau.so.6
ELF    7e540000-7e58e000    Deferred        libncurses.so.5
ELF    7e598000-7e5a9000    Deferred        libbz2.so.1
ELF    7e5b0000-7e5c6000    Deferred        libz.so.1
ELF    7e5c8000-7e5e3000    Deferred        version<elf>
  \-PE    7e5d0000-7e5e3000    \               version
ELF    7e5e8000-7e75a000    Deferred        user32<elf>
  \-PE    7e600000-7e75a000    \               user32
ELF    7e760000-7e7d4000    Deferred        advapi32<elf>
  \-PE    7e770000-7e7d4000    \               advapi32
ELF    7e7d8000-7e8ff000    Deferred        gdi32<elf>
  \-PE    7e7e0000-7e8ff000    \               gdi32
ELF    7e900000-7ea1d000    Dwarf           opengl32<elf>
  \-PE    7e920000-7ea1d000    \               opengl32
ELF    7ea20000-7eb95000    Dwarf           wined3d<elf>
  \-PE    7ea30000-7eb95000    \               wined3d
ELF    7eb98000-7ec03000    Dwarf           d3d8_test<elf>
  \-PE    7eba0000-7ec03000    \               d3d8_test
ELF    7ef78000-7ef85000    Deferred        libnss_files.so.2
ELF    7ef88000-7ef94000    Deferred        libnss_nis.so.2
ELF    7ef98000-7efb1000    Deferred        libnsl.so.1
ELF    7efb8000-7efc1000    Deferred        libnss_compat.so.2
ELF    7efc8000-7efff000    Dwarf           d3d8<elf>
  \-PE    7efd0000-7efff000    \               d3d8
ELF    f7318000-f735d000    Deferred        libm.so.6
ELF    f7360000-f7364000    Deferred        libdl.so.2
ELF    f7368000-f750b000    Dwarf           libc.so.6
ELF    f7510000-f752b000    Deferred        libpthread.so.0
ELF    f7568000-f771d000    Dwarf           libwine.so.1
ELF    f7720000-f7742000    Deferred        ld-linux.so.2
ELF    f7744000-f7745000    Deferred        [vdso].so
Threads:
process  tid      prio (all id:s are in hex)
00000008 (D) Z:\home\andrei\x\wine\dlls\d3d8\tests\d3d8_test.exe
    00000009    0 <==
0000000e services.exe
    0000001c    0
    0000001b    0
    00000016    0
    00000014    0
    00000010    0
    0000000f    0
00000012 winedevice.exe
    0000001f    0
    00000018    0
    00000017    0
    00000013    0
00000019 plugplay.exe
    0000001e    0
    0000001d    0
    0000001a    0
00000020 explorer.exe
    00000021    0
System information:
    Wine build: wine-1.7.19-74-g1e7b8b7
    Platform: i386
    Host system: Linux
    Host version: 3.14.4-gentoo

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^ permalink raw reply	[flat|nested] 13+ messages in thread

* [Bug 79575] [radeonsi] Wine's d3d8 test crashes in SITargetLowering::analyzeImmediate
  2014-06-03  7:56 [Bug 79575] New: [radeonsi] Wine's d3d8 test crashes in SITargetLowering::analyzeImmediate bugzilla-daemon
@ 2014-08-08  1:36 ` bugzilla-daemon
  2014-08-08  2:55 ` bugzilla-daemon
                   ` (10 subsequent siblings)
  11 siblings, 0 replies; 13+ messages in thread
From: bugzilla-daemon @ 2014-08-08  1:36 UTC (permalink / raw)
  To: dri-devel


[-- Attachment #1.1: Type: text/plain, Size: 229 bytes --]

https://bugs.freedesktop.org/show_bug.cgi?id=79575

--- Comment #1 from Tom Stellard <tstellar@gmail.com> ---
Can you post the output of R600_DEBUG=cs ?

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^ permalink raw reply	[flat|nested] 13+ messages in thread

* [Bug 79575] [radeonsi] Wine's d3d8 test crashes in SITargetLowering::analyzeImmediate
  2014-06-03  7:56 [Bug 79575] New: [radeonsi] Wine's d3d8 test crashes in SITargetLowering::analyzeImmediate bugzilla-daemon
  2014-08-08  1:36 ` [Bug 79575] " bugzilla-daemon
@ 2014-08-08  2:55 ` bugzilla-daemon
  2014-08-08  8:21 ` bugzilla-daemon
                   ` (9 subsequent siblings)
  11 siblings, 0 replies; 13+ messages in thread
From: bugzilla-daemon @ 2014-08-08  2:55 UTC (permalink / raw)
  To: dri-devel


[-- Attachment #1.1: Type: text/plain, Size: 370 bytes --]

https://bugs.freedesktop.org/show_bug.cgi?id=79575

--- Comment #2 from Michel Dänzer <michel@daenzer.net> ---
(In reply to comment #1)
> Can you post the output of R600_DEBUG=cs ?

Make that R600_DEBUG=vs , since the crash occurs in
util_make_vertex_passthrough_shader_with_so().

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^ permalink raw reply	[flat|nested] 13+ messages in thread

* [Bug 79575] [radeonsi] Wine's d3d8 test crashes in SITargetLowering::analyzeImmediate
  2014-06-03  7:56 [Bug 79575] New: [radeonsi] Wine's d3d8 test crashes in SITargetLowering::analyzeImmediate bugzilla-daemon
  2014-08-08  1:36 ` [Bug 79575] " bugzilla-daemon
  2014-08-08  2:55 ` bugzilla-daemon
@ 2014-08-08  8:21 ` bugzilla-daemon
  2014-08-08 19:29 ` bugzilla-daemon
                   ` (8 subsequent siblings)
  11 siblings, 0 replies; 13+ messages in thread
From: bugzilla-daemon @ 2014-08-08  8:21 UTC (permalink / raw)
  To: dri-devel


[-- Attachment #1.1: Type: text/plain, Size: 546 bytes --]

https://bugs.freedesktop.org/show_bug.cgi?id=79575

--- Comment #3 from Henri Verbeet <hverbeet@gmail.com> ---
For what it's worth, test_fpu_setup() tests creating a D3D device with a custom
FPU control word. (The background on that is that creating a D3D device should
setup the FPU in a specific way, depending on if D3DCREATE_FPU_PRESERVE is
specified or not.) My guess would be that something in llvm doesn't expect to
be called with a non-default FPU control word.

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^ permalink raw reply	[flat|nested] 13+ messages in thread

* [Bug 79575] [radeonsi] Wine's d3d8 test crashes in SITargetLowering::analyzeImmediate
  2014-06-03  7:56 [Bug 79575] New: [radeonsi] Wine's d3d8 test crashes in SITargetLowering::analyzeImmediate bugzilla-daemon
                   ` (2 preceding siblings ...)
  2014-08-08  8:21 ` bugzilla-daemon
@ 2014-08-08 19:29 ` bugzilla-daemon
  2014-08-10 12:47 ` bugzilla-daemon
                   ` (7 subsequent siblings)
  11 siblings, 0 replies; 13+ messages in thread
From: bugzilla-daemon @ 2014-08-08 19:29 UTC (permalink / raw)
  To: dri-devel


[-- Attachment #1.1: Type: text/plain, Size: 332 bytes --]

https://bugs.freedesktop.org/show_bug.cgi?id=79575

--- Comment #4 from Andrei Slavoiu <ansla80@yahoo.com> ---
Created attachment 104309
  --> https://bugs.freedesktop.org/attachment.cgi?id=104309&action=edit
r600_debug_vs.log

Log file with R600_DEBUG=vs

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^ permalink raw reply	[flat|nested] 13+ messages in thread

* [Bug 79575] [radeonsi] Wine's d3d8 test crashes in SITargetLowering::analyzeImmediate
  2014-06-03  7:56 [Bug 79575] New: [radeonsi] Wine's d3d8 test crashes in SITargetLowering::analyzeImmediate bugzilla-daemon
                   ` (3 preceding siblings ...)
  2014-08-08 19:29 ` bugzilla-daemon
@ 2014-08-10 12:47 ` bugzilla-daemon
  2014-08-11  2:01 ` bugzilla-daemon
                   ` (6 subsequent siblings)
  11 siblings, 0 replies; 13+ messages in thread
From: bugzilla-daemon @ 2014-08-10 12:47 UTC (permalink / raw)
  To: dri-devel


[-- Attachment #1.1: Type: text/plain, Size: 415 bytes --]

https://bugs.freedesktop.org/show_bug.cgi?id=79575

--- Comment #5 from Andrei Slavoiu <ansla80@yahoo.com> ---
BTW, I just noticed that in the latest backtrace
util_make_vertex_passthrough_shader_with_so no longer appears. Instead it
starts from util_make_empty_fragment_shader. I tried adding R600_DEBUG=fs but
no extra info was printed.

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^ permalink raw reply	[flat|nested] 13+ messages in thread

* [Bug 79575] [radeonsi] Wine's d3d8 test crashes in SITargetLowering::analyzeImmediate
  2014-06-03  7:56 [Bug 79575] New: [radeonsi] Wine's d3d8 test crashes in SITargetLowering::analyzeImmediate bugzilla-daemon
                   ` (4 preceding siblings ...)
  2014-08-10 12:47 ` bugzilla-daemon
@ 2014-08-11  2:01 ` bugzilla-daemon
  2014-08-11 17:25 ` bugzilla-daemon
                   ` (5 subsequent siblings)
  11 siblings, 0 replies; 13+ messages in thread
From: bugzilla-daemon @ 2014-08-11  2:01 UTC (permalink / raw)
  To: dri-devel


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https://bugs.freedesktop.org/show_bug.cgi?id=79575

--- Comment #6 from Michel Dänzer <michel@daenzer.net> ---
(In reply to comment #5)
> I tried adding R600_DEBUG=fs but no extra info was printed.

That should be R600_DEBUG=ps for the pixel/fragment shader (you can see a list
of supported debugging options with R600_DEBUG=help).

Anyway, this is probably related to comment #3.

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^ permalink raw reply	[flat|nested] 13+ messages in thread

* [Bug 79575] [radeonsi] Wine's d3d8 test crashes in SITargetLowering::analyzeImmediate
  2014-06-03  7:56 [Bug 79575] New: [radeonsi] Wine's d3d8 test crashes in SITargetLowering::analyzeImmediate bugzilla-daemon
                   ` (5 preceding siblings ...)
  2014-08-11  2:01 ` bugzilla-daemon
@ 2014-08-11 17:25 ` bugzilla-daemon
  2014-08-11 18:42 ` bugzilla-daemon
                   ` (4 subsequent siblings)
  11 siblings, 0 replies; 13+ messages in thread
From: bugzilla-daemon @ 2014-08-11 17:25 UTC (permalink / raw)
  To: dri-devel


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https://bugs.freedesktop.org/show_bug.cgi?id=79575

--- Comment #7 from Roland Scheidegger <sroland@vmware.com> ---
Specifically it looks like the wine test actually tries a control word which
enables all fpu exceptions.
Seems like nvidia drivers had the same problem at some point:
http://bugs.winehq.org/show_bug.cgi?id=28634
Looks like this is happening purely for testing if a fpu control word would be
preserved, the actual value used by d3d does disable them just fine (though, of
course, this could also happen on any app, not just wine, if it unmasks
exceptions before calling into mesa code).
I vaguely remember similar issues in the past in other parts of mesa code.
Though IIRC you aren't actually expected to leave the fpu control word in a
non-standard state when you're calling into library code, so I'm not really
sure if this qualifies as a mesa bug. In any way since this happens in llvm
code finally here it might even be a bug there. I guess the only way to fix
this kind of bug in mesa would be to change the fpu control word on all entry
points which could trigger numerical exceptions (and when additionally also
consistent results are on the wish list, would need to change it on all
entrypoints which could do some fpu calculations)) which I think is not
reasonable.

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^ permalink raw reply	[flat|nested] 13+ messages in thread

* [Bug 79575] [radeonsi] Wine's d3d8 test crashes in SITargetLowering::analyzeImmediate
  2014-06-03  7:56 [Bug 79575] New: [radeonsi] Wine's d3d8 test crashes in SITargetLowering::analyzeImmediate bugzilla-daemon
                   ` (6 preceding siblings ...)
  2014-08-11 17:25 ` bugzilla-daemon
@ 2014-08-11 18:42 ` bugzilla-daemon
  2014-08-12  0:10 ` bugzilla-daemon
                   ` (3 subsequent siblings)
  11 siblings, 0 replies; 13+ messages in thread
From: bugzilla-daemon @ 2014-08-11 18:42 UTC (permalink / raw)
  To: dri-devel


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https://bugs.freedesktop.org/show_bug.cgi?id=79575

--- Comment #8 from Henri Verbeet <hverbeet@gmail.com> ---
(In reply to comment #7)
> Looks like this is happening purely for testing if a fpu control word would
> be preserved, the actual value used by d3d does disable them just fine
> (though, of course, this could also happen on any app, not just wine, if it
> unmasks exceptions before calling into mesa code).
It's perhaps important to point out that Wine isn't a single application as
such, and we don't have a lot of control over how individual applications setup
the FPU. The test in question exists because some applications expect us to
setup the FPU in a specific way, while others expect us to leave it alone.
Without having looked much into the llvm source for the backtrace, it's perhaps
also a bit odd that compiling a pass-through shader is doing anything involving
denormals in the first place.

> Though IIRC you aren't actually expected to leave the fpu control word in a
> non-standard state when you're calling into library code, so I'm not really
> sure if this qualifies as a mesa bug. In any way since this happens in llvm
> code finally here it might even be a bug there. I guess the only way to fix
Mostly just for reference, regressions every now and then aside, the Wine D3D
tests pretty much just pass with r600g / sb; that's currently my main
development setup. (And somewhat off-topic, but not entirely unrelated to this
bug, the reason that that's not a radeonsi system is because I think the llvm
dependency is just painful to work with.)

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^ permalink raw reply	[flat|nested] 13+ messages in thread

* [Bug 79575] [radeonsi] Wine's d3d8 test crashes in SITargetLowering::analyzeImmediate
  2014-06-03  7:56 [Bug 79575] New: [radeonsi] Wine's d3d8 test crashes in SITargetLowering::analyzeImmediate bugzilla-daemon
                   ` (7 preceding siblings ...)
  2014-08-11 18:42 ` bugzilla-daemon
@ 2014-08-12  0:10 ` bugzilla-daemon
  2014-08-12 23:21 ` bugzilla-daemon
                   ` (2 subsequent siblings)
  11 siblings, 0 replies; 13+ messages in thread
From: bugzilla-daemon @ 2014-08-12  0:10 UTC (permalink / raw)
  To: dri-devel


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https://bugs.freedesktop.org/show_bug.cgi?id=79575

--- Comment #9 from Andrei Slavoiu <ansla80@yahoo.com> ---
Created attachment 104462
  --> https://bugs.freedesktop.org/attachment.cgi?id=104462&action=edit
r600_debug_ps.log

Output when ran with R600_DEBUG=ps

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^ permalink raw reply	[flat|nested] 13+ messages in thread

* [Bug 79575] [radeonsi] Wine's d3d8 test crashes in SITargetLowering::analyzeImmediate
  2014-06-03  7:56 [Bug 79575] New: [radeonsi] Wine's d3d8 test crashes in SITargetLowering::analyzeImmediate bugzilla-daemon
                   ` (8 preceding siblings ...)
  2014-08-12  0:10 ` bugzilla-daemon
@ 2014-08-12 23:21 ` bugzilla-daemon
  2017-05-24  8:13 ` bugzilla-daemon
  2017-05-24  8:36 ` bugzilla-daemon
  11 siblings, 0 replies; 13+ messages in thread
From: bugzilla-daemon @ 2014-08-12 23:21 UTC (permalink / raw)
  To: dri-devel


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https://bugs.freedesktop.org/show_bug.cgi?id=79575

--- Comment #10 from Roland Scheidegger <sroland@vmware.com> ---
(In reply to comment #8)
> (In reply to comment #7)
> > Looks like this is happening purely for testing if a fpu control word would
> > be preserved, the actual value used by d3d does disable them just fine
> > (though, of course, this could also happen on any app, not just wine, if it
> > unmasks exceptions before calling into mesa code).
> It's perhaps important to point out that Wine isn't a single application as
> such, and we don't have a lot of control over how individual applications
> setup the FPU. The test in question exists because some applications expect
> us to setup the FPU in a specific way, while others expect us to leave it
> alone. Without having looked much into the llvm source for the backtrace,
> it's perhaps also a bit odd that compiling a pass-through shader is doing
> anything involving denormals in the first place.
Well with analsysis lots of things can go on. As a simple example, llvm could
for instance recognize some float const is the same as some int const, and I
could easily imagine just such basic analysis throwing fpu exceptions all over
the place.
As far as I can tell though, if an app doesn't set that fpu preserve bit, d3d
will set some single precision mode with trunc rounding, but still have all
exceptions masked. And if an app does set the fpu preserve bit, the control
word will be left alone - near certainly in this case fpu exceptions are still
masked (but potentially rounding / precision bits different) because noone
wants to bother with them (and all exceptions masked is the default).
(That second case is what you'd get with "ordinary" apps outside of wine, and
it doesn't look like it's really a problem in practice. So, only the test in
wine really hits that.)

> 
> > Though IIRC you aren't actually expected to leave the fpu control word in a
> > non-standard state when you're calling into library code, so I'm not really
> > sure if this qualifies as a mesa bug. In any way since this happens in llvm
> > code finally here it might even be a bug there. I guess the only way to fix
> Mostly just for reference, regressions every now and then aside, the Wine
> D3D tests pretty much just pass with r600g / sb; that's currently my main
> development setup. (And somewhat off-topic, but not entirely unrelated to
> this bug, the reason that that's not a radeonsi system is because I think
> the llvm dependency is just painful to work with.)
The dependency might be painful but home-grown optimizers will get pretty
complex fast. Besides, if you really have apps which set the control word to
unmask exceptions, I'm pretty sure you can trigger exceptions inside core mesa
too.
As said, I'm not entirely sure what the expected behavior really is if you call
into library code with non-default fpu control word. On some cpus setting the
fpu control word can actually be very expensive (though some have it fully
pipelined now so it's cheap).

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^ permalink raw reply	[flat|nested] 13+ messages in thread

* [Bug 79575] [radeonsi] Wine's d3d8 test crashes in SITargetLowering::analyzeImmediate
  2014-06-03  7:56 [Bug 79575] New: [radeonsi] Wine's d3d8 test crashes in SITargetLowering::analyzeImmediate bugzilla-daemon
                   ` (9 preceding siblings ...)
  2014-08-12 23:21 ` bugzilla-daemon
@ 2017-05-24  8:13 ` bugzilla-daemon
  2017-05-24  8:36 ` bugzilla-daemon
  11 siblings, 0 replies; 13+ messages in thread
From: bugzilla-daemon @ 2017-05-24  8:13 UTC (permalink / raw)
  To: dri-devel


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https://bugs.freedesktop.org/show_bug.cgi?id=79575

Samuel Pitoiset <samuel.pitoiset@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |FIXED
             Status|NEW                         |RESOLVED

--- Comment #11 from Samuel Pitoiset <samuel.pitoiset@gmail.com> ---
Quite old bug (almost 3 years ago). The AMD open source stack has largely
evolved since 2014. Closing.

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^ permalink raw reply	[flat|nested] 13+ messages in thread

* [Bug 79575] [radeonsi] Wine's d3d8 test crashes in SITargetLowering::analyzeImmediate
  2014-06-03  7:56 [Bug 79575] New: [radeonsi] Wine's d3d8 test crashes in SITargetLowering::analyzeImmediate bugzilla-daemon
                   ` (10 preceding siblings ...)
  2017-05-24  8:13 ` bugzilla-daemon
@ 2017-05-24  8:36 ` bugzilla-daemon
  11 siblings, 0 replies; 13+ messages in thread
From: bugzilla-daemon @ 2017-05-24  8:36 UTC (permalink / raw)
  To: dri-devel


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https://bugs.freedesktop.org/show_bug.cgi?id=79575

Samuel Pitoiset <samuel.pitoiset@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|FIXED                       |WONTFIX

--- Comment #12 from Samuel Pitoiset <samuel.pitoiset@gmail.com> ---
As discussed offline with Michel Dänzer, the status should be WONTFIX rather
than FIXED. Sorry for the noise.

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