From adda411263217e86345f039aef730665c73732ea Mon Sep 17 00:00:00 2001 From: Alyssa Rosenzweig Date: Sat, 31 Aug 2019 11:08:39 -0700 Subject: [PATCH] pan/midgard: Add flatten_mir helper We would like to flatten a linked list of midgard_instructions into an array of midgard_instruction pointers on the heap. Signed-off-by: Alyssa Rosenzweig --- src/panfrost/midgard/midgard_schedule.c | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) diff --git a/src/panfrost/midgard/midgard_schedule.c b/src/panfrost/midgard/midgard_schedule.c index 2ed25da2e0d..75295b5d123 100644 --- a/src/panfrost/midgard/midgard_schedule.c +++ b/src/panfrost/midgard/midgard_schedule.c @@ -620,6 +620,28 @@ schedule_bundle(compiler_context *ctx, midgard_block *block, midgard_instruction return bundle; } +/* We would like to flatten the linked list of midgard_instructions in a bundle + * to an array of pointers on the heap for easy indexing */ + +static midgard_instruction ** +flatten_mir(midgard_block *block, unsigned *len) +{ + *len = list_length(&block->instructions); + + if (!(*len)) + return NULL; + + midgard_instruction **instructions = + calloc(sizeof(midgard_instruction *), *len); + + unsigned i = 0; + + mir_foreach_instr_in_block(block, ins) + instructions[i++] = ins; + + return instructions; +} + /* Schedule a single block by iterating its instruction to create bundles. * While we go, tally about the bundle sizes to compute the block size. */ -- 2.30.2