Mesa (master): pan/midgard: Fix a liveness info leak
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gitlab-mirror at kemper.freedesktop.org
Wed Jan 29 13:20:51 UTC 2020
Module: Mesa
Branch: master
Commit: 9be9fd85911883521a31111e728efc0f25b9bacd
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=9be9fd85911883521a31111e728efc0f25b9bacd
Author: Icecream95 <ixn at keemail.me>
Date: Sun Jan 26 14:59:24 2020 +1300
pan/midgard: Fix a liveness info leak
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig at collabora.com>
Tested-by: Marge Bot <https://gitlab.freedesktop.org/mesa/mesa/merge_requests/3566>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/merge_requests/3566>
---
src/panfrost/midgard/midgard_liveness.c | 13 +++++++------
1 file changed, 7 insertions(+), 6 deletions(-)
diff --git a/src/panfrost/midgard/midgard_liveness.c b/src/panfrost/midgard/midgard_liveness.c
index b1b2f311ffa..fd93339ed94 100644
--- a/src/panfrost/midgard/midgard_liveness.c
+++ b/src/panfrost/midgard/midgard_liveness.c
@@ -92,7 +92,8 @@ liveness_block_update(compiler_context *ctx, midgard_block *blk)
liveness_block_live_out(ctx, blk);
- uint16_t *live = mem_dup(blk->live_out, ctx->temp_count * sizeof(uint16_t));
+ uint16_t *live = ralloc_array(ctx, uint16_t, ctx->temp_count);
+ memcpy(live, blk->live_out, ctx->temp_count * sizeof(uint16_t));
mir_foreach_instr_in_block_rev(blk, ins)
mir_liveness_ins_update(live, ins, ctx->temp_count);
@@ -102,7 +103,7 @@ liveness_block_update(compiler_context *ctx, midgard_block *blk)
for (unsigned i = 0; (i < ctx->temp_count) && !progress; ++i)
progress |= (blk->live_in[i] != live[i]);
- free(blk->live_in);
+ ralloc_free(blk->live_in);
blk->live_in = live;
return progress;
@@ -131,8 +132,8 @@ mir_compute_liveness(compiler_context *ctx)
/* Allocate */
mir_foreach_block(ctx, block) {
- block->live_in = calloc(ctx->temp_count, sizeof(uint16_t));
- block->live_out = calloc(ctx->temp_count, sizeof(uint16_t));
+ block->live_in = rzalloc_array(ctx, uint16_t, ctx->temp_count);
+ block->live_out = rzalloc_array(ctx, uint16_t, ctx->temp_count);
}
/* Initialize the work list with the exit block */
@@ -183,10 +184,10 @@ mir_invalidate_liveness(compiler_context *ctx)
mir_foreach_block(ctx, block) {
if (block->live_in)
- free(block->live_in);
+ ralloc_free(block->live_in);
if (block->live_out)
- free(block->live_out);
+ ralloc_free(block->live_out);
block->live_in = NULL;
block->live_out = NULL;
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