<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - Indexing by ivec causes crash" href="https://bugs.freedesktop.org/show_bug.cgi?id=105438#c1">Comment # 1</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - Indexing by ivec causes crash" href="https://bugs.freedesktop.org/show_bug.cgi?id=105438">bug 105438</a> from <a class="email" href="mailto:andriy.khulap@globallogic.com" title="Andriy Khulap <andriy.khulap@globallogic.com>"> Andriy Khulap</a> <pre>I can reproduce this issue on Skylake with most mesa versions: 11.0.0-rc1 .. 17.3.6 .. latest git master in firefox, chrome and chromium browsers. The crash is caused by the unreachable("not reached"); trap in the end of void nir_visitor::visit(ir_expression *ir) (src/compiler/glsl/glsl_to_nir.cpp, line 1963). Issue can be fixed by adding empty case for ir_binop_vector_extract: diff --git a/src/compiler/glsl/glsl_to_nir.cpp b/src/compiler/glsl/glsl_to_nir.cpp index c4a6d52a5b..24acfa1f8d 100644 --- a/src/compiler/glsl/glsl_to_nir.cpp +++ b/src/compiler/glsl/glsl_to_nir.cpp @@ -1952,6 +1952,9 @@ nir_visitor::visit(ir_expression *ir) case ir_quadop_vector: result = nir_vec(&b, srcs, ir->type->vector_elements); break; + case ir_binop_vector_extract: + /* Prevent the unreachable trap */ + break; default: unreachable("not reached"); or by adding its handler to special cases: diff --git a/src/compiler/glsl/glsl_to_nir.cpp b/src/compiler/glsl/glsl_to_nir.cpp index c4a6d52a5b..d9efdd7170 100644 --- a/src/compiler/glsl/glsl_to_nir.cpp +++ b/src/compiler/glsl/glsl_to_nir.cpp @@ -1493,6 +1493,12 @@ nir_visitor::visit(ir_expression *ir) return; } + case ir_binop_vector_extract: + assert(ir->num_operands == 2); + ir->operands[0]->accept(this); + ir->operands[1]->accept(this); + return; + default: break; }</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the QA Contact for the bug.</li> <li>You are the assignee for the bug.</li> </ul> </body> </html>