===================================================================
@@ -668,7 +668,8 @@ add_stmt_operand (tree *var_p, gimple st
sym = (TREE_CODE (var) == SSA_NAME ? SSA_NAME_VAR (var) : var);
/* Mark statements with volatile operands. */
- if (TREE_THIS_VOLATILE (sym))
+ if (!(flags & opf_no_vops)
+ && TREE_THIS_VOLATILE (sym))
gimple_set_has_volatile_ops (stmt, true);
if (is_gimple_reg (sym))
@@ -728,7 +729,8 @@ get_indirect_ref_operands (gimple stmt,
{
tree *pptr = &TREE_OPERAND (expr, 0);
- if (TREE_THIS_VOLATILE (expr))
+ if (!(flags & opf_no_vops)
+ && TREE_THIS_VOLATILE (expr))
gimple_set_has_volatile_ops (stmt, true);
/* Add the VOP. */
@@ -747,7 +749,8 @@ get_indirect_ref_operands (gimple stmt,
static void
get_tmr_operands (gimple stmt, tree expr, int flags)
{
- if (TREE_THIS_VOLATILE (expr))
+ if (!(flags & opf_no_vops)
+ && TREE_THIS_VOLATILE (expr))
gimple_set_has_volatile_ops (stmt, true);
/* First record the real operands. */
@@ -914,14 +917,16 @@ get_expr_operands (gimple stmt, tree *ex
case REALPART_EXPR:
case IMAGPART_EXPR:
{
- if (TREE_THIS_VOLATILE (expr))
+ if (!(flags & opf_no_vops)
+ && TREE_THIS_VOLATILE (expr))
gimple_set_has_volatile_ops (stmt, true);
get_expr_operands (stmt, &TREE_OPERAND (expr, 0), flags);
if (code == COMPONENT_REF)
{
- if (TREE_THIS_VOLATILE (TREE_OPERAND (expr, 1)))
+ if (!(flags & opf_no_vops)
+ && TREE_THIS_VOLATILE (TREE_OPERAND (expr, 1)))
gimple_set_has_volatile_ops (stmt, true);
get_expr_operands (stmt, &TREE_OPERAND (expr, 2), uflags);
}
@@ -960,7 +965,8 @@ get_expr_operands (gimple stmt, tree *ex
/* A volatile constructor is actually TREE_CLOBBER_P, transfer
the volatility to the statement, don't use TREE_CLOBBER_P for
mirroring the other uses of THIS_VOLATILE in this file. */
- if (TREE_THIS_VOLATILE (expr))
+ if (!(flags & opf_no_vops)
+ && TREE_THIS_VOLATILE (expr))
gimple_set_has_volatile_ops (stmt, true);
for (idx = 0;
@@ -972,7 +978,8 @@ get_expr_operands (gimple stmt, tree *ex
}
case BIT_FIELD_REF:
- if (TREE_THIS_VOLATILE (expr))
+ if (!(flags & opf_no_vops)
+ && TREE_THIS_VOLATILE (expr))
gimple_set_has_volatile_ops (stmt, true);
/* FALLTHRU */
===================================================================
@@ -0,0 +1,13 @@
+/* { dg-do compile } */
+/* { dg-options "-fdump-tree-ssa" } */
+
+volatile int *q;
+void foo(int i)
+{
+ volatile int a[2];
+ volatile int *p = &a[i];
+ q = p;
+}
+
+/* { dg-final { scan-tree-dump-not "{v}" "ssa" } } */
+/* { dg-final { cleanup-tree-dump "ssa" } } */