Add exit on abort flag.

5 files changed, 10 insertions, 3 deletions

diff --git a/src/mesa/drivers/dri/r300/compiler/radeon_dataflow.c b/src/mesa/drivers/dri/r300/compiler/radeon_dataflow.c
index 62af457ecda..a7eae077ada 100644
--- a/src/mesa/drivers/dri/r300/compiler/radeon_dataflow.c
+++ b/src/mesa/drivers/dri/r300/compiler/radeon_dataflow.c
@@ -594,7 +594,7 @@ static void get_readers_pair_read_callback(
 	if (d->ReadPairCB)
 		d->ReadPairCB(d->ReaderData, inst, arg, src);
 
-	if (d->ReaderData->Abort)
+	if (d->ReaderData->ExitOnAbort && d->ReaderData->Abort)
 		return;
 
 	add_reader(&d->C->Pool, d->ReaderData, inst, shared_mask, arg);
@@ -622,7 +622,7 @@ static void get_readers_normal_read_callback(
 	if (d->ReadNormalCB)
 		d->ReadNormalCB(d->ReaderData, inst, src);
 
-	if (d->ReaderData->Abort)
+	if (d->ReaderData->ExitOnAbort && d->ReaderData->Abort)
 		return;
 
 	add_reader(&d->C->Pool, d->ReaderData, inst, shared_mask, src);
@@ -781,7 +781,7 @@ static void get_readers_for_single_write(
 		}
 		rc_for_all_writes_mask(tmp, get_readers_write_callback, d);
 
-		if (d->ReaderData->Abort)
+		if (d->ReaderData->ExitOnAbort && d->ReaderData->Abort)
 			return;
 
 		if (branch_depth == 0 && !d->AliveWriteMask)
diff --git a/src/mesa/drivers/dri/r300/compiler/radeon_dataflow.h b/src/mesa/drivers/dri/r300/compiler/radeon_dataflow.h
index ef971c5b234..2b5d3dda733 100644
--- a/src/mesa/drivers/dri/r300/compiler/radeon_dataflow.h
+++ b/src/mesa/drivers/dri/r300/compiler/radeon_dataflow.h
@@ -89,6 +89,9 @@ struct rc_reader_data {
 	unsigned int ReadersReserved;
 	struct rc_reader * Readers;
 
+	/* If this flag is enabled, rc_get_readers will exit as soon possbile
+	 * after the Abort flag is set.*/
+	unsigned int ExitOnAbort;
 	void * CbData;
 };
 
diff --git a/src/mesa/drivers/dri/r300/compiler/radeon_optimize.c b/src/mesa/drivers/dri/r300/compiler/radeon_optimize.c
index 5caff91b00e..6a16bf6f1c7 100644
--- a/src/mesa/drivers/dri/r300/compiler/radeon_optimize.c
+++ b/src/mesa/drivers/dri/r300/compiler/radeon_optimize.c
@@ -144,6 +144,7 @@ static void copy_propagate(struct radeon_compiler * c, struct rc_instruction * i
 		return;
 
 	/* Get a list of all the readers of this MOV instruction. */
+	reader_data.ExitOnAbort = 1;
 	rc_get_readers(c, inst_mov, &reader_data,
 		       copy_propagate_scan_read, NULL,
 		       is_src_clobbered_scan_write);
@@ -442,6 +443,7 @@ static int presub_helper(
 	rc_presubtract_op cb_op = presub_opcode;
 
 	reader_data.CbData = &cb_op;
+	reader_data.ExitOnAbort = 1;
 	rc_get_readers(c, inst_add, &reader_data, presub_scan_read, NULL,
 						is_src_clobbered_scan_write);
 
diff --git a/src/mesa/drivers/dri/r300/compiler/radeon_pair_schedule.c b/src/mesa/drivers/dri/r300/compiler/radeon_pair_schedule.c
index 0d8bf8e17b8..29c2734e421 100644
--- a/src/mesa/drivers/dri/r300/compiler/radeon_pair_schedule.c
+++ b/src/mesa/drivers/dri/r300/compiler/radeon_pair_schedule.c
@@ -959,6 +959,7 @@ static void schedule_block(struct r300_fragment_program_compiler * c,
 			instruction_ready(&s, s.Current);
 
 		/* Get global readers for possible RGB->Alpha conversion. */
+		s.Current->GlobalReaders.ExitOnAbort = 1;
 		rc_get_readers(s.C, inst, &s.Current->GlobalReaders,
 				is_rgb_to_alpha_possible_normal,
 				is_rgb_to_alpha_possible, NULL);
diff --git a/src/mesa/drivers/dri/r300/compiler/radeon_rename_regs.c b/src/mesa/drivers/dri/r300/compiler/radeon_rename_regs.c
index 5bd19c0b9c6..8ad4fc82163 100644
--- a/src/mesa/drivers/dri/r300/compiler/radeon_rename_regs.c
+++ b/src/mesa/drivers/dri/r300/compiler/radeon_rename_regs.c
@@ -71,6 +71,7 @@ void rc_rename_regs(struct radeon_compiler *c, void *user)
 		if (inst->U.I.DstReg.File != RC_FILE_TEMPORARY)
 			continue;
 
+		reader_data.ExitOnAbort = 1;
 		rc_get_readers(c, inst, &reader_data, NULL, NULL, NULL);
 
 		if (reader_data.Abort || reader_data.ReaderCount == 0)