aco: ensure that uniform booleans are computed in WQM if their uses happen in WQM

This fixes graphical corruption in SC2.

Reviewed-by: Rhys Perry <pendingchaos02@gmail.com>

diff --git a/src/amd/compiler/aco_instruction_selection.cpp b/src/amd/compiler/aco_instruction_selection.cpp
index fede0979bd2b93a4fa68eb400fafe18bc395036d..203897d0d8f3008453f45072390fd871061f3b7b 100644 (file)
--- a/src/amd/compiler/aco_instruction_selection.cpp
+++ b/src/amd/compiler/aco_instruction_selection.cpp
@@ -321,7 +321,8 @@ Temp as_uniform_bool(isel_context *ctx, Temp val)
    } else {
       assert(val.regClass() == s2);
       Builder bld(ctx->program, ctx->block);
-      return bld.sopc(aco_opcode::s_cmp_lg_u64, bld.def(s1, scc), Operand(0u), Operand(val));
+      /* if we're currently in WQM mode, ensure that the source is also computed in WQM */
+      return bld.sopc(aco_opcode::s_cmp_lg_u64, bld.def(s1, scc), Operand(0u), emit_wqm(ctx, val));
    }
 }