Module: Mesa Branch: main Commit: adb8c30436222f73cba0abccddf44c89d00f52e1 URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=adb8c30436222f73cba0abccddf44c89d00f52e1
Author: Lionel Landwerlin <[email protected]> Date: Fri Mar 24 13:56:06 2023 +0200 intel/fs: UNDEF fixup_nomask_control_flow temp register Ensure that the register's liveness is not expanded to loops. Signed-off-by: Lionel Landwerlin <[email protected]> Cc: mesa-stable Reviewed-by: Francisco Jerez <[email protected]> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/21853> --- src/intel/compiler/brw_fs.cpp | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/src/intel/compiler/brw_fs.cpp b/src/intel/compiler/brw_fs.cpp index ceeac3db004..8a435166858 100644 --- a/src/intel/compiler/brw_fs.cpp +++ b/src/intel/compiler/brw_fs.cpp @@ -6445,10 +6445,12 @@ fs_visitor::fixup_nomask_control_flow() */ const bool save_flag = flag_liveout & flag_mask(flag, dispatch_width / 8); - const fs_reg tmp = ubld.group(1, 0).vgrf(flag.type); + const fs_reg tmp = ubld.group(8, 0).vgrf(flag.type); - if (save_flag) + if (save_flag) { + ubld.group(8, 0).UNDEF(tmp); ubld.group(1, 0).MOV(tmp, flag); + } ubld.emit(FS_OPCODE_LOAD_LIVE_CHANNELS);
