bugzilla-daemon at freedesktop.org
2017-Aug-23 21:18 UTC
[Nouveau] [Bug 102382] New: nv50ir: isImmediate doesn't properly work for integers if Value is typed as float
https://bugs.freedesktop.org/show_bug.cgi?id=102382 Bug ID: 102382 Summary: nv50ir: isImmediate doesn't properly work for integers if Value is typed as float Product: xorg Version: git Hardware: Other OS: All Status: NEW Severity: normal Priority: medium Component: Driver/nouveau Assignee: nouveau at lists.freedesktop.org Reporter: karolherbst at gmail.com QA Contact: xorg-team at lists.x.org Created attachment 133728 --> https://bugs.freedesktop.org/attachment.cgi?id=133728&action=edit TGSI codegen should generate a texfetch instruction with a lod according to IMM[1].xxxx, which is of value 2, but in https://cgit.freedesktop.org/mesa/mesa/tree/src/gallium/drivers/nouveau/codegen/nv50_ir_lowering_nvc0.cpp#n140 the isInteger(0) call assumes the Value being a F32, which leads to a is 2.8E-45 == 0 check returning true resulting into the lod argument being removed from texfetch. This causes a fail in the KHR-GL44.robust_buffer_access_behavior.texel_fetch CTS test. Other isInteger calls might be broken as well where an immediate of type float is interpreted as int by the instruction. -- You are receiving this mail because: You are the assignee for the bug. -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://lists.freedesktop.org/archives/nouveau/attachments/20170823/c91679cd/attachment.html>
bugzilla-daemon at freedesktop.org
2017-Aug-24 22:14 UTC
[Nouveau] [Bug 102382] nv50ir: isImmediate doesn't properly work for integers if Value is typed as float
https://bugs.freedesktop.org/show_bug.cgi?id=102382 Karol Herbst <karolherbst at gmail.com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution|--- |FIXED --- Comment #1 from Karol Herbst <karolherbst at gmail.com> --- nothing was wrong with isImmediate, but the tetexfetch was fixed in 96be442b7795a6eb3d50f4061f2b98dddc39aa4d -- You are receiving this mail because: You are the assignee for the bug. -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://lists.freedesktop.org/archives/nouveau/attachments/20170824/56380bf7/attachment.html>
Apparently Analagous Threads
- texelFetch sampler1/2DArray on nv50 gallium
- [PATCH] nvc0/ir: move sample id to second source arg to fix sampler2DMS
- [LLVMdev] Being able to know the jitted code-size before emitting
- [LLVMdev] Being able to know the jitted code-size before emitting
- [Bug 90348] New: Spilling failure of b96 merged value