From: Jason Ekstrand <jason.ekstrand@intel.com>
Date: Sat, 2 Sep 2017 05:35:43 +0000 (-0700)
Subject: intel/fs: Uniformize the index in readInvocation
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=ebaee9da4adaad10e1c46bdd2f5521175ea04044;p=mesa.git

intel/fs: Uniformize the index in readInvocation

The index is any value provided by the shader and this can be called in
non-uniform control flow so we can't just take component 0.  Found by
inspection.

Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
---

diff --git a/src/intel/compiler/brw_fs_nir.cpp b/src/intel/compiler/brw_fs_nir.cpp
index 07bb1ad0e13..201a23f83bd 100644
--- a/src/intel/compiler/brw_fs_nir.cpp
+++ b/src/intel/compiler/brw_fs_nir.cpp
@@ -4305,7 +4305,7 @@ fs_visitor::nir_emit_intrinsic(const fs_builder &bld, nir_intrinsic_instr *instr
       fs_reg tmp = bld.vgrf(value.type);
 
       bld.exec_all().emit(SHADER_OPCODE_BROADCAST, tmp, value,
-                          component(invocation, 0));
+                          bld.emit_uniformize(invocation));
 
       bld.MOV(retype(dest, BRW_REGISTER_TYPE_D),
               fs_reg(component(tmp, 0)));