[Mesa-dev] [PATCH 2/5] nir: Allocate nir_phi_src values out of the nir_phi_instr.

[Kenneth Graunke]

Phi sources are part of the phi instruction and should have the same
lifetime.

Signed-off-by: Kenneth Graunke <kenneth at whitecape.org>
---
 src/glsl/nir/nir_lower_phis_to_scalar.c | 2 +-
 src/glsl/nir/nir_lower_vars_to_ssa.c    | 2 +-
 src/glsl/nir/nir_to_ssa.c               | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/glsl/nir/nir_lower_phis_to_scalar.c b/src/glsl/nir/nir_lower_phis_to_scalar.c
index 7cd93ea..4bdb800 100644
--- a/src/glsl/nir/nir_lower_phis_to_scalar.c
+++ b/src/glsl/nir/nir_lower_phis_to_scalar.c
@@ -223,7 +223,7 @@ lower_phis_to_scalar_block(nir_block *block, void *void_state)
             else
                nir_instr_insert_after_block(src->pred, &mov->instr);
 
-            nir_phi_src *new_src = ralloc(state->mem_ctx, nir_phi_src);
+            nir_phi_src *new_src = ralloc(new_phi, nir_phi_src);
             new_src->pred = src->pred;
             new_src->src = nir_src_for_ssa(&mov->dest.dest.ssa);
 
diff --git a/src/glsl/nir/nir_lower_vars_to_ssa.c b/src/glsl/nir/nir_lower_vars_to_ssa.c
index 86e6ab4..2ca74d7 100644
--- a/src/glsl/nir/nir_lower_vars_to_ssa.c
+++ b/src/glsl/nir/nir_lower_vars_to_ssa.c
@@ -642,7 +642,7 @@ add_phi_sources(nir_block *block, nir_block *pred,
 
       struct deref_node *node = entry->data;
 
-      nir_phi_src *src = ralloc(state->mem_ctx, nir_phi_src);
+      nir_phi_src *src = ralloc(phi, nir_phi_src);
       src->pred = pred;
       src->src.is_ssa = true;
       src->src.ssa = get_ssa_def_for_block(node, pred, state);
diff --git a/src/glsl/nir/nir_to_ssa.c b/src/glsl/nir/nir_to_ssa.c
index 47cf453..53ff547 100644
--- a/src/glsl/nir/nir_to_ssa.c
+++ b/src/glsl/nir/nir_to_ssa.c
@@ -47,7 +47,7 @@ insert_trivial_phi(nir_register *reg, nir_block *block, void *mem_ctx)
    set_foreach(block->predecessors, entry) {
       nir_block *pred = (nir_block *) entry->key;
 
-      nir_phi_src *src = ralloc(mem_ctx, nir_phi_src);
+      nir_phi_src *src = ralloc(instr, nir_phi_src);
       src->pred = pred;
       src->src.is_ssa = false;
       src->src.reg.base_offset = 0;
-- 
2.3.5