From: Rob Clark <robclark@freedesktop.org>
Date: Thu, 2 Jul 2015 17:52:38 +0000 (-0400)
Subject: freedreno/ir3: fix indirects tracking
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=6b9f5cd5f7b25e9e03104fe279df74817f69fe87;p=mesa.git

freedreno/ir3: fix indirects tracking

cp would update instr->address but not update the indirects array
resulting in sched getting confused when it had to 'spill' the address
register.  Add an ir3_instr_set_address() helper to set instr->address
and also update ir->indirects, and update all places that were writing
instr->address to use helper instead.

Signed-off-by: Rob Clark <robclark@freedesktop.org>
---

diff --git a/src/gallium/drivers/freedreno/ir3/ir3.c b/src/gallium/drivers/freedreno/ir3/ir3.c
index 1da6cf0477e..a0cb74498ec 100644
--- a/src/gallium/drivers/freedreno/ir3/ir3.c
+++ b/src/gallium/drivers/freedreno/ir3/ir3.c
@@ -706,6 +706,17 @@ struct ir3_register * ir3_reg_create(struct ir3_instruction *instr,
 	return reg;
 }
 
+void
+ir3_instr_set_address(struct ir3_instruction *instr,
+		struct ir3_instruction *addr)
+{
+	if (instr->address != addr) {
+		struct ir3 *ir = instr->block->shader;
+		instr->address = addr;
+		array_insert(ir->indirects, instr);
+	}
+}
+
 void
 ir3_block_clear_mark(struct ir3_block *block)
 {
diff --git a/src/gallium/drivers/freedreno/ir3/ir3.h b/src/gallium/drivers/freedreno/ir3/ir3.h
index bc0144568a5..f11d8eda5f2 100644
--- a/src/gallium/drivers/freedreno/ir3/ir3.h
+++ b/src/gallium/drivers/freedreno/ir3/ir3.h
@@ -285,6 +285,8 @@ struct ir3_instruction {
 
 	/* an instruction can reference at most one address register amongst
 	 * it's src/dst registers.  Beyond that, you need to insert mov's.
+	 *
+	 * NOTE: do not write this directly, use ir3_instr_set_address()
 	 */
 	struct ir3_instruction *address;
 
@@ -420,6 +422,9 @@ const char *ir3_instr_name(struct ir3_instruction *instr);
 struct ir3_register * ir3_reg_create(struct ir3_instruction *instr,
 		int num, int flags);
 
+void ir3_instr_set_address(struct ir3_instruction *instr,
+		struct ir3_instruction *addr);
+
 static inline bool ir3_instr_check_mark(struct ir3_instruction *instr)
 {
 	if (instr->flags & IR3_INSTR_MARK)
diff --git a/src/gallium/drivers/freedreno/ir3/ir3_compiler_nir.c b/src/gallium/drivers/freedreno/ir3/ir3_compiler_nir.c
index fa13c4076dc..8d8d4434d9e 100644
--- a/src/gallium/drivers/freedreno/ir3/ir3_compiler_nir.c
+++ b/src/gallium/drivers/freedreno/ir3/ir3_compiler_nir.c
@@ -637,9 +637,8 @@ create_uniform_indirect(struct ir3_compile *ctx, unsigned n,
 	mov->cat1.dst_type = TYPE_U32;
 	ir3_reg_create(mov, 0, 0);
 	ir3_reg_create(mov, n, IR3_REG_CONST | IR3_REG_RELATIV);
-	mov->address = address;
 
-	array_insert(ctx->ir->indirects, mov);
+	ir3_instr_set_address(mov, address);
 
 	return mov;
 }
@@ -677,9 +676,8 @@ create_indirect_load(struct ir3_compile *ctx, unsigned arrsz, unsigned n,
 	src->instr = collect;
 	src->size  = arrsz;
 	src->offset = n;
-	mov->address = address;
 
-	array_insert(ctx->ir->indirects, mov);
+	ir3_instr_set_address(mov, address);
 
 	return mov;
 }
@@ -700,10 +698,9 @@ create_indirect_store(struct ir3_compile *ctx, unsigned arrsz, unsigned n,
 	dst->size  = arrsz;
 	dst->offset = n;
 	ir3_reg_create(mov, 0, IR3_REG_SSA)->instr = src;
-	mov->address = address;
 	mov->fanin = collect;
 
-	array_insert(ctx->ir->indirects, mov);
+	ir3_instr_set_address(mov, address);
 
 	return mov;
 }
diff --git a/src/gallium/drivers/freedreno/ir3/ir3_cp.c b/src/gallium/drivers/freedreno/ir3/ir3_cp.c
index 8c7c80f7aae..f4c825b2ab6 100644
--- a/src/gallium/drivers/freedreno/ir3/ir3_cp.c
+++ b/src/gallium/drivers/freedreno/ir3/ir3_cp.c
@@ -291,7 +291,7 @@ reg_cp(struct ir3_instruction *instr, struct ir3_register *reg, unsigned n)
 			instr->regs[n+1] = src_reg;
 
 			if (src_reg->flags & IR3_REG_RELATIV)
-				instr->address = reg->instr->address;
+				ir3_instr_set_address(instr, reg->instr->address);
 
 			return;
 		}
@@ -300,7 +300,7 @@ reg_cp(struct ir3_instruction *instr, struct ir3_register *reg, unsigned n)
 				!conflicts(instr->address, reg->instr->address)) {
 			src_reg->flags = new_flags;
 			instr->regs[n+1] = src_reg;
-			instr->address = reg->instr->address;
+			ir3_instr_set_address(instr, reg->instr->address);
 
 			return;
 		}
@@ -389,7 +389,7 @@ instr_cp(struct ir3_instruction *instr, unsigned *flags)
 	}
 
 	if (instr->address)
-		instr->address = instr_cp(instr->address, NULL);
+		ir3_instr_set_address(instr, instr_cp(instr->address, NULL));
 
 	return instr;
 }
diff --git a/src/gallium/drivers/freedreno/ir3/ir3_sched.c b/src/gallium/drivers/freedreno/ir3/ir3_sched.c
index 49a4426d163..01d72301dcc 100644
--- a/src/gallium/drivers/freedreno/ir3/ir3_sched.c
+++ b/src/gallium/drivers/freedreno/ir3/ir3_sched.c
@@ -312,7 +312,7 @@ split_addr(struct ir3_sched_ctx *ctx)
 				/* original addr is scheduled, but new one isn't: */
 				new_addr->flags &= ~IR3_INSTR_MARK;
 			}
-			indirect->address = new_addr;
+			ir3_instr_set_address(indirect, new_addr);
 		}
 	}