From 9dcf90d7ba966cba904266209087a87ea9c018b9 Mon Sep 17 00:00:00 2001 From: Kenneth Graunke Date: Wed, 3 Apr 2019 14:24:31 -0700 Subject: intel/fs: Don't emit empty ELSE blocks. While we can clean this up later, it's trivial to not generate the stupid code in the first place, which saves some optimization work. Reviewed-by: Jason Ekstrand Reviewed-by: Matt Turner --- src/intel/compiler/brw_fs_nir.cpp | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/src/intel/compiler/brw_fs_nir.cpp b/src/intel/compiler/brw_fs_nir.cpp index 71fe0ff7e2f..526cc13c71a 100644 --- a/src/intel/compiler/brw_fs_nir.cpp +++ b/src/intel/compiler/brw_fs_nir.cpp @@ -409,10 +409,10 @@ fs_visitor::nir_emit_if(nir_if *if_stmt) nir_emit_cf_list(&if_stmt->then_list); - /* note: if the else is empty, dead CF elimination will remove it */ - bld.emit(BRW_OPCODE_ELSE); - - nir_emit_cf_list(&if_stmt->else_list); + if (!nir_cf_list_is_empty_block(&if_stmt->else_list)) { + bld.emit(BRW_OPCODE_ELSE); + nir_emit_cf_list(&if_stmt->else_list); + } bld.emit(BRW_OPCODE_ENDIF); -- cgit v1.2.3