diff options
| author | Francisco Jerez <[email protected]> | 2015-07-30 14:45:57 +0300 |
|---|---|---|
| committer | Francisco Jerez <[email protected]> | 2015-07-31 16:20:52 +0300 |
| commit | 781dc7c0e1f41502f18e07c0940af949a78d2792 (patch) | |
| tree | 21771b78370f657d3c3d5f926eabdca9a52134f7 /src/mesa | |
| parent | 383558c56427b0e8b4e56cce8737771ad053f753 (diff) | |
i965/fs: Fix regression with SIMD8 VS since b5f1a48e234d47b24df38cb562cffb8941d43795.
With num_direct_uniforms == 0 there's no space allocated in the
param_size array for the one block of direct uniforms -- On the FS
stage this would be a harmless no-op because it would simply re-set
one of the param_size entries allocated for the sampler units to zero,
but on the VS stage it has been reported to cause memory corruption
followed by a crash -- Surprising how a full piglit run on Gen8 didn't
catch it.
Reported-and-reviewed-by: "Lofstedt, Marta" <[email protected]>
Diffstat (limited to 'src/mesa')
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_fs_nir.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_fs_nir.cpp b/src/mesa/drivers/dri/i965/brw_fs_nir.cpp index 722e4e75a82..9cb7b0db3f6 100644 --- a/src/mesa/drivers/dri/i965/brw_fs_nir.cpp +++ b/src/mesa/drivers/dri/i965/brw_fs_nir.cpp @@ -182,7 +182,8 @@ fs_visitor::nir_setup_uniforms(nir_shader *shader) /* We split the uniform register file in half. The first half is * entirely direct uniforms. The second half is indirect. */ - param_size[0] = num_direct_uniforms; + if (num_direct_uniforms > 0) + param_size[0] = num_direct_uniforms; if (shader->num_uniforms > num_direct_uniforms) param_size[num_direct_uniforms] = shader->num_uniforms - num_direct_uniforms; |