From 7be00b2a06d09e8f3cf2257c7449219a4685ed7f Mon Sep 17 00:00:00 2001 From: Alyssa Rosenzweig Date: Sat, 28 Sep 2019 13:05:12 -0400 Subject: [PATCH] pan/midgard: Allow scheduling conditions with constants Now that we have constant adjustment logic abstracted, we can do this safely. Along with the csel inversion patch, this allows many more common csel ops to inline their condition in the bundle. Signed-off-by: Alyssa Rosenzweig --- src/panfrost/midgard/midgard_schedule.c | 14 ++++++++++---- 1 file changed, 10 insertions(+), 4 deletions(-) diff --git a/src/panfrost/midgard/midgard_schedule.c b/src/panfrost/midgard/midgard_schedule.c index 7ed36a5e739..d5fd17bc6db 100644 --- a/src/panfrost/midgard/midgard_schedule.c +++ b/src/panfrost/midgard/midgard_schedule.c @@ -654,6 +654,7 @@ static unsigned mir_comparison_mobile( compiler_context *ctx, midgard_instruction **instructions, + struct midgard_predicate *predicate, unsigned count, unsigned cond) { @@ -676,9 +677,9 @@ mir_comparison_mobile( if (GET_CHANNEL_COUNT(alu_opcode_props[instructions[i]->alu.op].props)) return ~0; - /* TODO: moving conditionals with constants */ + /* Ensure it will fit with constants */ - if (instructions[i]->has_constants) + if (!mir_adjust_constants(instructions[i], predicate, false)) return ~0; /* Ensure it is written only once */ @@ -689,6 +690,10 @@ mir_comparison_mobile( ret = i; } + /* Inject constants now that we are sure we want to */ + if (ret != ~0) + mir_adjust_constants(instructions[ret], predicate, true); + return ret; } @@ -700,6 +705,7 @@ static midgard_instruction * mir_schedule_comparison( compiler_context *ctx, midgard_instruction **instructions, + struct midgard_predicate *predicate, BITSET_WORD *worklist, unsigned count, unsigned cond, bool vector, unsigned swizzle, midgard_instruction *user) @@ -707,7 +713,7 @@ mir_schedule_comparison( /* TODO: swizzle when scheduling */ unsigned comp_i = (!vector && (swizzle == 0)) ? - mir_comparison_mobile(ctx, instructions, count, cond) : ~0; + mir_comparison_mobile(ctx, instructions, predicate, count, cond) : ~0; /* If we can, schedule the condition immediately */ if ((comp_i != ~0) && BITSET_TEST(worklist, comp_i)) { @@ -747,7 +753,7 @@ mir_schedule_condition(compiler_context *ctx, /* Grab the conditional instruction */ midgard_instruction *cond = mir_schedule_comparison( - ctx, instructions, worklist, count, last->src[condition_index], + ctx, instructions, predicate, worklist, count, last->src[condition_index], vector, last->cond_swizzle, last); /* We have exclusive reign over this (possibly move) conditional -- 2.30.2