diff mbox

[PR,tree-optimization/68766] Remove all LOOP_VECTORIZED calls

Message ID 20151208071349.GA12548@msticlxl57.ims.intel.com
State New
Headers show

Commit Message

Ilya Enkovich Dec. 8, 2015, 7:13 a.m. UTC 
Hi,

This patch enables LOOP_VECTORIZED calls processing when debug counters are used for vectorizer.  Bootstrapped and regtested on x86_64-unknown-linux-gnu.  Patch was approved in tracker [1] and applied to trunk.

Thanks,
Ilya

[1] - https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68766#c3
--
gcc/

2015-12-08  Ilya Enkovich  <enkovich.gnu@gmail.com>

	PR tree-optimization/68766
	* tree-vectorizer.c (vectorize_loops): Check for
	if-converted loops when debug counters are used.

gcc/testsuite/

2015-12-08  Ilya Enkovich  <enkovich.gnu@gmail.com>

	PR tree-optimization/68766
	* gcc.dg/pr68766.c: New test.
diff mbox

Patch

diff --git a/gcc/testsuite/gcc.dg/pr68766.c b/gcc/testsuite/gcc.dg/pr68766.c
new file mode 100644
index 0000000..a0d549b
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/pr68766.c
@@ -0,0 +1,19 @@ 
+/* { dg-do compile } */
+/* { dg-options "-O2 -ftree-vectorize -fdbg-cnt=vect_loop:1" } */
+/* { dg-additional-options "-mavx2" { target { i?86-*-* x86_64-*-* } } } */
+/* { dg-prune-output "dbg_cnt 'vect_loop' set to 1" } */
+
+int a, b, g, h;
+int c[58];
+int d[58];
+int fn1() {
+  for (; g; g++)
+    if (a)
+      c[g] = b;
+}
+
+int fn2() {
+  fn1();
+  for (; h; h++)
+    d[h] = 0;
+}
diff --git a/gcc/tree-vectorizer.c b/gcc/tree-vectorizer.c
index b721c56..c496c4b 100644
--- a/gcc/tree-vectorizer.c
+++ b/gcc/tree-vectorizer.c
@@ -536,7 +536,13 @@  vectorize_loops (void)
 	  continue;
 
         if (!dbg_cnt (vect_loop))
-	  break;
+	  {
+	    /* We may miss some if-converted loops due to
+	       debug counter.  Set any_ifcvt_loops to visit
+	       them at finalization.  */
+	    any_ifcvt_loops = true;
+	    break;
+	  }
 
 	gimple *loop_vectorized_call = vect_loop_vectorized_call (loop);
 	if (loop_vectorized_call)