Module: Mesa Branch: 9.1 Commit: 38677efa3968e6fa063792de972e5b10cc9ed4f1 URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=38677efa3968e6fa063792de972e5b10cc9ed4f1
Author: Tom Stellard <thomas.stell...@amd.com> Date: Mon May 20 08:05:03 2013 -0700 r300g/compiler: Prevent regalloc from swizzling texture operands v2 https://bugs.freedesktop.org/show_bug.cgi?id=63520 NOTE: This is a candidate for the stable branches. Reviewed-by: Marek Olšák <mar...@gmail.com> Reviewed-by: Alex Deucher <alexander.deuc...@amd.com> (cherry picked from commit 24fa43675f32bc81c7252f3ddce4c80ed8c7737d) --- .../drivers/r300/compiler/radeon_pair_regalloc.c | 8 ++++++++ 1 files changed, 8 insertions(+), 0 deletions(-) diff --git a/src/gallium/drivers/r300/compiler/radeon_pair_regalloc.c b/src/gallium/drivers/r300/compiler/radeon_pair_regalloc.c index 6442e0d..1970a34 100644 --- a/src/gallium/drivers/r300/compiler/radeon_pair_regalloc.c +++ b/src/gallium/drivers/r300/compiler/radeon_pair_regalloc.c @@ -383,6 +383,14 @@ static enum rc_reg_class variable_get_class( RC_INSTRUCTION_PAIR ) { old_swizzle = r.U.P.Arg->Swizzle; } else { + /* Source operands of TEX + * instructions can't be + * swizzle on r300/r400 GPUs. + */ + if (!variable->C->is_r500) { + can_change_writemask = 0; + break; + } old_swizzle = r.U.I.Src->Swizzle; } new_swizzle = rc_adjust_channels( _______________________________________________ mesa-commit mailing list mesa-commit@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/mesa-commit
