From 7eb496688762ea614408c4c75e4b5c7242d2677c Mon Sep 17 00:00:00 2001 From: Francisco Jerez Date: Wed, 27 Apr 2016 02:07:08 -0700 Subject: [PATCH] i965/fs: Allow spilling of non-contiguous registers. This should be working fine now. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=94997 Reviewed-by: Jason Ekstrand --- src/mesa/drivers/dri/i965/brw_fs_reg_allocate.cpp | 21 ++------------------- 1 file changed, 2 insertions(+), 19 deletions(-) diff --git a/src/mesa/drivers/dri/i965/brw_fs_reg_allocate.cpp b/src/mesa/drivers/dri/i965/brw_fs_reg_allocate.cpp index 874013e..e770a7f 100644 --- a/src/mesa/drivers/dri/i965/brw_fs_reg_allocate.cpp +++ b/src/mesa/drivers/dri/i965/brw_fs_reg_allocate.cpp @@ -835,30 +835,13 @@ fs_visitor::choose_spill_reg(struct ra_graph *g) */ foreach_block_and_inst(block, fs_inst, inst, cfg) { for (unsigned int i = 0; i < inst->sources; i++) { - if (inst->src[i].file == VGRF) { + if (inst->src[i].file == VGRF) spill_costs[inst->src[i].nr] += loop_scale; - - /* Register spilling logic assumes full-width registers; smeared - * registers have a width of 1 so if we try to spill them we'll - * generate invalid assembly. This shouldn't be a problem because - * smeared registers are only used as short-term temporaries when - * loading pull constants, so spilling them is unlikely to reduce - * register pressure anyhow. - */ - if (!inst->src[i].is_contiguous()) { - no_spill[inst->src[i].nr] = true; - } - } } - if (inst->dst.file == VGRF) { + if (inst->dst.file == VGRF) spill_costs[inst->dst.nr] += inst->regs_written * loop_scale; - if (!inst->dst.is_contiguous()) { - no_spill[inst->dst.nr] = true; - } - } - switch (inst->opcode) { case BRW_OPCODE_DO: -- 2.7.4