re PR c/84100 (Function __attribute__((optimize(align-loops=32))) gives spurious…

re PR c/84100 (Function __attribute__((optimize(align-loops=32))) gives spurious warning and is ignored)

	PR c/84100
	* common.opt (falign-functions=, falign-jumps=, falign-labels=,
	falign-loops=): Add Optimization flag.

	* gcc.dg/pr84100.c: New test.

From-SVN: r257219

gcc/ChangeLog

+2018-01-31  Jakub Jelinek  <jakub@redhat.com>
+
+	PR c/84100
+	* common.opt (falign-functions=, falign-jumps=, falign-labels=,
+	falign-loops=): Add Optimization flag.
+
 2017-01-30  Jeff Law  <law@redhat.com>
 
 	PR target/84064

gcc/common.opt

@@ -954,7 +954,7 @@ Common Report Var(align_functions,0) Optimization UInteger
 Align the start of functions.
 
 falign-functions=
-Common RejectNegative Joined UInteger Var(align_functions)
+Common RejectNegative Joined UInteger Var(align_functions) Optimization
 
 flimit-function-alignment
 Common Report Var(flag_limit_function_alignment) Optimization Init(0)
@@ -964,21 +964,21 @@ Common Report Var(align_jumps,0) Optimization UInteger
 Align labels which are only reached by jumping.
 
 falign-jumps=
-Common RejectNegative Joined UInteger Var(align_jumps)
+Common RejectNegative Joined UInteger Var(align_jumps) Optimization
 
 falign-labels
 Common Report Var(align_labels,0) Optimization UInteger
 Align all labels.
 
 falign-labels=
-Common RejectNegative Joined UInteger Var(align_labels)
+Common RejectNegative Joined UInteger Var(align_labels) Optimization
 
 falign-loops
 Common Report Var(align_loops,0) Optimization UInteger
 Align the start of loops.
 
 falign-loops=
-Common RejectNegative Joined UInteger Var(align_loops)
+Common RejectNegative Joined UInteger Var(align_loops) Optimization
 
 fargument-alias
 Common Ignore

gcc/testsuite/ChangeLog

+2018-01-31  Jakub Jelinek  <jakub@redhat.com>
+
+	PR c/84100
+	* gcc.dg/pr84100.c: New test.
+
 2018-01-30  Jeff Law  <law@redhat.com>
 
 	PR target/84064

gcc/testsuite/gcc.dg/pr84100.c

+/* PR c/84100 */
+/* { dg-do compile } */
+/* { dg-options "-O2" } */
+
+void bar (void);
+
+__attribute__((optimize ("align-loops=16", "align-jumps=16",
+			 "align-labels=16", "align-functions=16")))
+void
+foo (void)
+{			/* { dg-bogus "bad option" } */
+  for (int i = 0; i < 1024; ++i)
+    bar ();
+}