From: Matt Turner Date: Thu, 26 Mar 2015 17:09:54 +0000 (-0700) Subject: i965/fs: Relax type check in cmod propagation. X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=a03d0ba78f33e43df2ca7a9e4c58fdc9fbc9876a;p=mesa.git i965/fs: Relax type check in cmod propagation. The thing we want to avoid is int/float comparisons, but int/unsigned comparisons with 0 are equivalent. total instructions in shared programs: 6194829 -> 6193996 (-0.01%) instructions in affected programs: 117192 -> 116359 (-0.71%) helped: 471 Reviewed-by: Jason Ekstrand --- diff --git a/src/mesa/drivers/dri/i965/brw_fs_cmod_propagation.cpp b/src/mesa/drivers/dri/i965/brw_fs_cmod_propagation.cpp index 798fef3035b..469f2ea4e16 100644 --- a/src/mesa/drivers/dri/i965/brw_fs_cmod_propagation.cpp +++ b/src/mesa/drivers/dri/i965/brw_fs_cmod_propagation.cpp @@ -111,7 +111,9 @@ opt_cmod_propagation_local(bblock_t *block) break; /* Comparisons operate differently for ints and floats */ - if (scan_inst->dst.type != inst->dst.type) + if (scan_inst->dst.type != inst->dst.type && + (scan_inst->dst.type == BRW_REGISTER_TYPE_F || + inst->dst.type == BRW_REGISTER_TYPE_F)) break; /* If the instruction generating inst's source also wrote the