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[PATCH, committed] PR jit/66539: Add parentheses as needed to gcc_jit_object_get_debug_string
- From: David Malcolm <dmalcolm at redhat dot com>
- To: gcc-patches at gcc dot gnu dot org, jit at gcc dot gnu dot org
- Cc: David Malcolm <dmalcolm at redhat dot com>
- Date: Tue, 16 Jun 2015 14:33:08 -0400
- Subject: [PATCH, committed] PR jit/66539: Add parentheses as needed to gcc_jit_object_get_debug_string
- Authentication-results: sourceware.org; auth=none
- References: <1434328937 dot 3192 dot 21 dot camel at surprise>
gcc_jit_object_get_debug_string wasn't adding parentheses, leading to
misleading dumps for certain compound expressions.
This patch adds:
rvalue::get_debug_string_parens
rvalue::get_precedence
methods, mimicing C's precedence rules, using them in the get_debug_string
implementation so that we get parentheses where needed when generating
debug strings for compound expressions.
Tested via "make check-jit"; takes the total "expected passes" of
jit.sum from 7609 to 7699.
Committed to trunk as r224531.
gcc/jit/ChangeLog:
PR jit/66539
* jit-recording.c: Within namespace gcc::jit::recording::
(rvalue::get_debug_string_parens): New function.
(binary_op::make_debug_string): Update to mimic C precedence
rules.
(binary_op_precedence): New array.
(binary_op::get_precedence): New function.
(comparison::make_debug_string): Update to mimic C precedence
rules.
(comparison_precedence): New array.
(comparison::get_precedence): New function.
(cast::make_debug_string): Update to mimic C precedence rules.
(call::make_debug_string): Likewise.
(call_through_ptr::make_debug_string): Likewise.
(array_access::make_debug_string): Likewise.
(access_field_of_lvalue::make_debug_string): Likewise.
(access_field_rvalue::make_debug_string): Likewise.
(dereference_field_rvalue::make_debug_string): Likewise.
(dereference_rvalue::make_debug_string): Likewise.
(get_address_of_lvalue::make_debug_string): Likewise.
* jit-recording.h: Within namespace gcc::jit::recording::
(precedence): New enum.
(rvalue::rvalue): Initialize field "m_parenthesized_string".
(rvalue::get_debug_string_parens): New method.
(rvalue::get_precedence): New pure virtual function.
(rvalue::m_parenthesized_string): New field.
(param::get_precedence): New function.
(global::get_precedence): New function.
(memento_of_new_rvalue_from_const::get_precedence): New function.
(memento_of_new_string_literal::get_precedence): New function.
(unary_op::get_precedence): New function.
(binary_op::get_precedence): New function.
(comparison::get_precedence): New function.
(cast::get_precedence): New function.
(call::get_precedence): New function.
(call_through_ptr::get_precedence): New function.
(array_access::get_precedence): New function.
(access_field_of_lvalue::get_precedence): New function.
(access_field_rvalue::get_precedence): New function.
(dereference_field_rvalue::get_precedence): New function.
(dereference_rvalue::get_precedence): New function.
(get_address_of_lvalue::get_precedence): New function.
(local::get_precedence): New function.
gcc/testsuite/ChangeLog:
PR jit/66539
* jit.dg/all-non-failing-tests.h: Add test-debug-strings.c.
* jit.dg/test-debug-strings.c: New test case.
* jit.dg/test-quadratic.c (make_calc_discriminant): Verify that
the discriminant has a sane debug string.
---
gcc/jit/jit-recording.c | 150 ++++++++++++++++++---
gcc/jit/jit-recording.h | 49 ++++++-
gcc/testsuite/jit.dg/all-non-failing-tests.h | 7 +
gcc/testsuite/jit.dg/test-debug-strings.c | 190 +++++++++++++++++++++++++++
gcc/testsuite/jit.dg/test-quadratic.c | 28 ++--
5 files changed, 393 insertions(+), 31 deletions(-)
create mode 100644 gcc/testsuite/jit.dg/test-debug-strings.c
diff --git a/gcc/jit/jit-recording.c b/gcc/jit/jit-recording.c
index 32d7f31..f379b58 100644
--- a/gcc/jit/jit-recording.c
+++ b/gcc/jit/jit-recording.c
@@ -3021,6 +3021,63 @@ recording::rvalue::access_as_rvalue (reproducer &r)
return r.get_identifier (this);
}
+/* Return a debug string for the given rvalue, wrapping it in parentheses
+ if needed to mimic C's precedence rules, i.e. if OUTER_PREC is of
+ stronger precedence that this rvalue's precedence.
+
+ For example, given:
+
+ MULT
+ / \
+ PLUS MINUS
+ / \ / \
+ A B C D
+
+ we want to emit:
+
+ (A + B) * (C - D)
+
+ since MULT has strong precedence than PLUS and MINUS, whereas for:
+
+ PLUS
+ / \
+ MULT DIVIDE
+ / \ / \
+ A B C D
+
+ we can simply emit:
+
+ A * B + C / D
+
+ since PLUS has weaker precedence than MULT and DIVIDE. */
+
+const char *
+recording::rvalue::get_debug_string_parens (enum precedence outer_prec)
+{
+ enum precedence this_prec = get_precedence ();
+
+ /* If this_prec has stronger precedence than outer_prec, we don't
+ need to wrap this in parens within the outer debug string.
+ Stronger precedences occur earlier than weaker within the enum,
+ so this is a less than test. Equal precedences don't need
+ parentheses. */
+ if (this_prec <= outer_prec)
+ return get_debug_string();
+
+ /* Otherwise, we need parentheses. */
+
+ /* Lazily-build and cache m_parenthesized_string. */
+ if (!m_parenthesized_string)
+ {
+ const char *debug_string = get_debug_string ();
+ m_parenthesized_string = string::from_printf (get_context (),
+ "(%s)",
+ debug_string);
+ }
+ gcc_assert (m_parenthesized_string);
+ return m_parenthesized_string->c_str ();
+}
+
/* The implementation of class gcc::jit::recording::lvalue. */
@@ -4251,11 +4308,12 @@ static const char * const binary_op_strings[] = {
recording::string *
recording::binary_op::make_debug_string ()
{
+ enum precedence prec = get_precedence ();
return string::from_printf (m_ctxt,
"%s %s %s",
- m_a->get_debug_string (),
+ m_a->get_debug_string_parens (prec),
binary_op_strings[m_op],
- m_b->get_debug_string ());
+ m_b->get_debug_string_parens (prec));
}
static const char * const binary_op_reproducer_strings[] = {
@@ -4295,6 +4353,31 @@ recording::binary_op::write_reproducer (reproducer &r)
r.get_identifier_as_rvalue (m_b));
}
+namespace recording {
+static const enum precedence binary_op_precedence[] = {
+ PRECEDENCE_ADDITIVE, /* GCC_JIT_BINARY_OP_PLUS */
+ PRECEDENCE_ADDITIVE, /* GCC_JIT_BINARY_OP_MINUS */
+
+ PRECEDENCE_MULTIPLICATIVE, /* GCC_JIT_BINARY_OP_MULT */
+ PRECEDENCE_MULTIPLICATIVE, /* GCC_JIT_BINARY_OP_DIVIDE */
+ PRECEDENCE_MULTIPLICATIVE, /* GCC_JIT_BINARY_OP_MODULO */
+
+ PRECEDENCE_BITWISE_AND, /* GCC_JIT_BINARY_OP_BITWISE_AND */
+ PRECEDENCE_BITWISE_XOR, /* GCC_JIT_BINARY_OP_BITWISE_XOR */
+ PRECEDENCE_BITWISE_IOR, /* GCC_JIT_BINARY_OP_BITWISE_OR */
+ PRECEDENCE_LOGICAL_AND, /* GCC_JIT_BINARY_OP_LOGICAL_AND */
+ PRECEDENCE_LOGICAL_OR, /* GCC_JIT_BINARY_OP_LOGICAL_OR */
+ PRECEDENCE_SHIFT, /* GCC_JIT_BINARY_OP_LSHIFT */
+ PRECEDENCE_SHIFT, /* GCC_JIT_BINARY_OP_RSHIFT */
+};
+} /* namespace recording */
+
+enum recording::precedence
+recording::binary_op::get_precedence () const
+{
+ return binary_op_precedence[m_op];
+}
+
/* The implementation of class gcc::jit::recording::comparison. */
/* Implementation of recording::memento::make_debug_string for
@@ -4313,11 +4396,12 @@ static const char * const comparison_strings[] =
recording::string *
recording::comparison::make_debug_string ()
{
+ enum precedence prec = get_precedence ();
return string::from_printf (m_ctxt,
"%s %s %s",
- m_a->get_debug_string (),
+ m_a->get_debug_string_parens (prec),
comparison_strings[m_op],
- m_b->get_debug_string ());
+ m_b->get_debug_string_parens (prec));
}
/* A table of enum gcc_jit_comparison values expressed in string
@@ -4375,6 +4459,25 @@ recording::comparison::visit_children (rvalue_visitor *v)
v->visit (m_b);
}
+namespace recording {
+static const enum precedence comparison_precedence[] =
+{
+ PRECEDENCE_EQUALITY, /* GCC_JIT_COMPARISON_EQ */
+ PRECEDENCE_EQUALITY, /* GCC_JIT_COMPARISON_NE */
+
+ PRECEDENCE_RELATIONAL, /* GCC_JIT_COMPARISON_LT */
+ PRECEDENCE_RELATIONAL, /* GCC_JIT_COMPARISON_LE */
+ PRECEDENCE_RELATIONAL, /* GCC_JIT_COMPARISON_GT */
+ PRECEDENCE_RELATIONAL, /* GCC_JIT_COMPARISON_GE */
+};
+} /* namespace recording */
+
+enum recording::precedence
+recording::comparison::get_precedence () const
+{
+ return comparison_precedence[m_op];
+}
+
/* Implementation of pure virtual hook recording::memento::replay_into
for recording::cast. */
@@ -4400,10 +4503,11 @@ recording::cast::visit_children (rvalue_visitor *v)
recording::string *
recording::cast::make_debug_string ()
{
+ enum precedence prec = get_precedence ();
return string::from_printf (m_ctxt,
"(%s)%s",
get_type ()->get_debug_string (),
- m_rvalue->get_debug_string ());
+ m_rvalue->get_debug_string_parens (prec));
}
/* Implementation of recording::memento::write_reproducer for casts. */
@@ -4473,12 +4577,13 @@ recording::call::visit_children (rvalue_visitor *v)
recording::string *
recording::call::make_debug_string ()
{
+ enum precedence prec = get_precedence ();
/* First, build a buffer for the arguments. */
/* Calculate length of said buffer. */
size_t sz = 1; /* nil terminator */
for (unsigned i = 0; i< m_args.length (); i++)
{
- sz += strlen (m_args[i]->get_debug_string ());
+ sz += strlen (m_args[i]->get_debug_string_parens (prec));
sz += 2; /* ", " separator */
}
@@ -4488,8 +4593,8 @@ recording::call::make_debug_string ()
for (unsigned i = 0; i< m_args.length (); i++)
{
- strcpy (argbuf + len, m_args[i]->get_debug_string ());
- len += strlen (m_args[i]->get_debug_string ());
+ strcpy (argbuf + len, m_args[i]->get_debug_string_parens (prec));
+ len += strlen (m_args[i]->get_debug_string_parens (prec));
if (i + 1 < m_args.length ())
{
strcpy (argbuf + len, ", ");
@@ -4586,12 +4691,13 @@ recording::call_through_ptr::visit_children (rvalue_visitor *v)
recording::string *
recording::call_through_ptr::make_debug_string ()
{
+ enum precedence prec = get_precedence ();
/* First, build a buffer for the arguments. */
/* Calculate length of said buffer. */
size_t sz = 1; /* nil terminator */
for (unsigned i = 0; i< m_args.length (); i++)
{
- sz += strlen (m_args[i]->get_debug_string ());
+ sz += strlen (m_args[i]->get_debug_string_parens (prec));
sz += 2; /* ", " separator */
}
@@ -4601,8 +4707,8 @@ recording::call_through_ptr::make_debug_string ()
for (unsigned i = 0; i< m_args.length (); i++)
{
- strcpy (argbuf + len, m_args[i]->get_debug_string ());
- len += strlen (m_args[i]->get_debug_string ());
+ strcpy (argbuf + len, m_args[i]->get_debug_string_parens (prec));
+ len += strlen (m_args[i]->get_debug_string_parens (prec));
if (i + 1 < m_args.length ())
{
strcpy (argbuf + len, ", ");
@@ -4614,7 +4720,7 @@ recording::call_through_ptr::make_debug_string ()
/* ...and use it to get the string for the call as a whole. */
string *result = string::from_printf (m_ctxt,
"%s (%s)",
- m_fn_ptr->get_debug_string (),
+ m_fn_ptr->get_debug_string_parens (prec),
argbuf);
delete[] argbuf;
@@ -4680,10 +4786,11 @@ recording::array_access::visit_children (rvalue_visitor *v)
recording::string *
recording::array_access::make_debug_string ()
{
+ enum precedence prec = get_precedence ();
return string::from_printf (m_ctxt,
"%s[%s]",
- m_ptr->get_debug_string (),
- m_index->get_debug_string ());
+ m_ptr->get_debug_string_parens (prec),
+ m_index->get_debug_string_parens (prec));
}
/* Implementation of recording::memento::write_reproducer for
@@ -4735,9 +4842,10 @@ recording::access_field_of_lvalue::visit_children (rvalue_visitor *v)
recording::string *
recording::access_field_of_lvalue::make_debug_string ()
{
+ enum precedence prec = get_precedence ();
return string::from_printf (m_ctxt,
"%s.%s",
- m_lvalue->get_debug_string (),
+ m_lvalue->get_debug_string_parens (prec),
m_field->get_debug_string ());
}
@@ -4787,9 +4895,10 @@ recording::access_field_rvalue::visit_children (rvalue_visitor *v)
recording::string *
recording::access_field_rvalue::make_debug_string ()
{
+ enum precedence prec = get_precedence ();
return string::from_printf (m_ctxt,
"%s.%s",
- m_rvalue->get_debug_string (),
+ m_rvalue->get_debug_string_parens (prec),
m_field->get_debug_string ());
}
@@ -4840,9 +4949,10 @@ recording::dereference_field_rvalue::visit_children (rvalue_visitor *v)
recording::string *
recording::dereference_field_rvalue::make_debug_string ()
{
+ enum precedence prec = get_precedence ();
return string::from_printf (m_ctxt,
"%s->%s",
- m_rvalue->get_debug_string (),
+ m_rvalue->get_debug_string_parens (prec),
m_field->get_debug_string ());
}
@@ -4891,9 +5001,10 @@ recording::dereference_rvalue::visit_children (rvalue_visitor *v)
recording::string *
recording::dereference_rvalue::make_debug_string ()
{
+ enum precedence prec = get_precedence ();
return string::from_printf (m_ctxt,
"*%s",
- m_rvalue->get_debug_string ());
+ m_rvalue->get_debug_string_parens (prec));
}
/* Implementation of recording::memento::write_reproducer for
@@ -4939,9 +5050,10 @@ recording::get_address_of_lvalue::visit_children (rvalue_visitor *v)
recording::string *
recording::get_address_of_lvalue::make_debug_string ()
{
+ enum precedence prec = get_precedence ();
return string::from_printf (m_ctxt,
"&%s",
- m_lvalue->get_debug_string ());
+ m_lvalue->get_debug_string_parens (prec));
}
/* Implementation of recording::memento::write_reproducer for
diff --git a/gcc/jit/jit-recording.h b/gcc/jit/jit-recording.h
index 439e7ce..d3170fe 100644
--- a/gcc/jit/jit-recording.h
+++ b/gcc/jit/jit-recording.h
@@ -858,6 +858,27 @@ class rvalue_visitor
virtual void visit (rvalue *rvalue) = 0;
};
+/* When generating debug strings for rvalues we mimic C, so we need to
+ mimic C's precedence levels when handling compound expressions.
+ These are in order from strongest precedence to weakest. */
+enum precedence
+{
+ PRECEDENCE_PRIMARY,
+ PRECEDENCE_POSTFIX,
+ PRECEDENCE_UNARY,
+ PRECEDENCE_CAST,
+ PRECEDENCE_MULTIPLICATIVE,
+ PRECEDENCE_ADDITIVE,
+ PRECEDENCE_SHIFT,
+ PRECEDENCE_RELATIONAL,
+ PRECEDENCE_EQUALITY,
+ PRECEDENCE_BITWISE_AND,
+ PRECEDENCE_BITWISE_XOR,
+ PRECEDENCE_BITWISE_IOR,
+ PRECEDENCE_LOGICAL_AND,
+ PRECEDENCE_LOGICAL_OR
+};
+
class rvalue : public memento
{
public:
@@ -867,7 +888,8 @@ public:
: memento (ctxt),
m_loc (loc),
m_type (type_),
- m_scope (NULL)
+ m_scope (NULL),
+ m_parenthesized_string (NULL)
{
gcc_assert (type_);
}
@@ -909,12 +931,20 @@ public:
virtual const char *access_as_rvalue (reproducer &r);
+ /* Get the debug string, wrapped in parentheses. */
+ const char *
+ get_debug_string_parens (enum precedence outer_prec);
+
+private:
+ virtual enum precedence get_precedence () const = 0;
+
protected:
location *m_loc;
type *m_type;
private:
function *m_scope; /* NULL for globals, non-NULL for locals/params */
+ string *m_parenthesized_string;
};
class lvalue : public rvalue
@@ -977,6 +1007,7 @@ public:
private:
string * make_debug_string () { return m_name; }
void write_reproducer (reproducer &r);
+ enum precedence get_precedence () const { return PRECEDENCE_PRIMARY; }
private:
string *m_name;
@@ -1161,6 +1192,7 @@ public:
private:
string * make_debug_string () { return m_name; }
void write_reproducer (reproducer &r);
+ enum precedence get_precedence () const { return PRECEDENCE_PRIMARY; }
private:
enum gcc_jit_global_kind m_kind;
@@ -1185,6 +1217,7 @@ public:
private:
string * make_debug_string ();
void write_reproducer (reproducer &r);
+ enum precedence get_precedence () const { return PRECEDENCE_PRIMARY; }
private:
HOST_TYPE m_value;
@@ -1206,6 +1239,7 @@ public:
private:
string * make_debug_string ();
void write_reproducer (reproducer &r);
+ enum precedence get_precedence () const { return PRECEDENCE_PRIMARY; }
private:
string *m_value;
@@ -1231,6 +1265,7 @@ public:
private:
string * make_debug_string ();
void write_reproducer (reproducer &r);
+ enum precedence get_precedence () const {return PRECEDENCE_UNARY;}
private:
enum gcc_jit_unary_op m_op;
@@ -1257,6 +1292,7 @@ public:
private:
string * make_debug_string ();
void write_reproducer (reproducer &r);
+ enum precedence get_precedence () const;
private:
enum gcc_jit_binary_op m_op;
@@ -1284,6 +1320,7 @@ public:
private:
string * make_debug_string ();
void write_reproducer (reproducer &r);
+ enum precedence get_precedence () const;
private:
enum gcc_jit_comparison m_op;
@@ -1309,6 +1346,7 @@ public:
private:
string * make_debug_string ();
void write_reproducer (reproducer &r);
+ enum precedence get_precedence () const { return PRECEDENCE_CAST; }
private:
rvalue *m_rvalue;
@@ -1330,6 +1368,7 @@ public:
private:
string * make_debug_string ();
void write_reproducer (reproducer &r);
+ enum precedence get_precedence () const { return PRECEDENCE_POSTFIX; }
private:
function *m_func;
@@ -1352,6 +1391,7 @@ public:
private:
string * make_debug_string ();
void write_reproducer (reproducer &r);
+ enum precedence get_precedence () const { return PRECEDENCE_POSTFIX; }
private:
rvalue *m_fn_ptr;
@@ -1377,6 +1417,7 @@ public:
private:
string * make_debug_string ();
void write_reproducer (reproducer &r);
+ enum precedence get_precedence () const { return PRECEDENCE_POSTFIX; }
private:
rvalue *m_ptr;
@@ -1402,6 +1443,7 @@ public:
private:
string * make_debug_string ();
void write_reproducer (reproducer &r);
+ enum precedence get_precedence () const { return PRECEDENCE_POSTFIX; }
private:
lvalue *m_lvalue;
@@ -1427,6 +1469,7 @@ public:
private:
string * make_debug_string ();
void write_reproducer (reproducer &r);
+ enum precedence get_precedence () const { return PRECEDENCE_POSTFIX; }
private:
rvalue *m_rvalue;
@@ -1452,6 +1495,7 @@ public:
private:
string * make_debug_string ();
void write_reproducer (reproducer &r);
+ enum precedence get_precedence () const { return PRECEDENCE_POSTFIX; }
private:
rvalue *m_rvalue;
@@ -1474,6 +1518,7 @@ public:
private:
string * make_debug_string ();
void write_reproducer (reproducer &r);
+ enum precedence get_precedence () const { return PRECEDENCE_UNARY; }
private:
rvalue *m_rvalue;
@@ -1496,6 +1541,7 @@ public:
private:
string * make_debug_string ();
void write_reproducer (reproducer &r);
+ enum precedence get_precedence () const { return PRECEDENCE_UNARY; }
private:
lvalue *m_lvalue;
@@ -1521,6 +1567,7 @@ public:
private:
string * make_debug_string () { return m_name; }
void write_reproducer (reproducer &r);
+ enum precedence get_precedence () const { return PRECEDENCE_PRIMARY; }
private:
function *m_func;
diff --git a/gcc/testsuite/jit.dg/all-non-failing-tests.h b/gcc/testsuite/jit.dg/all-non-failing-tests.h
index 82ce736..f0000cc 100644
--- a/gcc/testsuite/jit.dg/all-non-failing-tests.h
+++ b/gcc/testsuite/jit.dg/all-non-failing-tests.h
@@ -64,6 +64,13 @@
#undef create_code
#undef verify_code
+/* test-debug-strings.c */
+#define create_code create_code_debug_strings
+#define verify_code verify_code_debug_strings
+#include "test-debug-strings.c"
+#undef create_code
+#undef verify_code
+
/* test-dot-product.c */
#define create_code create_code_dot_product
#define verify_code verify_code_dot_product
diff --git a/gcc/testsuite/jit.dg/test-debug-strings.c b/gcc/testsuite/jit.dg/test-debug-strings.c
new file mode 100644
index 0000000..e515a17
--- /dev/null
+++ b/gcc/testsuite/jit.dg/test-debug-strings.c
@@ -0,0 +1,190 @@
+#include <stdlib.h>
+#include <stdio.h>
+
+#include "libgccjit.h"
+
+#include "harness.h"
+
+/* Build various compound expressions, and verify that they have sane debug
+ strings. */
+void
+create_code (gcc_jit_context *ctxt, void *user_data)
+{
+ /* Make a singly-linked list type:
+ struct node
+ {
+ struct node *next;
+ int value;
+ };
+ */
+ gcc_jit_type *t_int =
+ gcc_jit_context_get_type (ctxt, GCC_JIT_TYPE_INT);
+ gcc_jit_struct *t_node =
+ gcc_jit_context_new_opaque_struct (ctxt, NULL, "node");
+ gcc_jit_type *t_node_ptr =
+ gcc_jit_type_get_pointer (gcc_jit_struct_as_type (t_node));
+ gcc_jit_field *f_next =
+ gcc_jit_context_new_field (ctxt, NULL, t_node_ptr, "next");
+ gcc_jit_field *f_value =
+ gcc_jit_context_new_field (ctxt, NULL, t_int, "value");
+ gcc_jit_field *fields[] = {f_next, f_value};
+ gcc_jit_struct_set_fields (t_node, NULL, 2, fields);
+
+ /* Create a dummy function so that we have locals/params to build
+ expressions with. */
+ gcc_jit_type *t_void =
+ gcc_jit_context_get_type (ctxt, GCC_JIT_TYPE_VOID);
+ gcc_jit_function *fn =
+ gcc_jit_context_new_function (ctxt, NULL,
+ GCC_JIT_FUNCTION_EXPORTED,
+ t_void,
+ "test_debug_strings",
+ 0, NULL, 0);
+ gcc_jit_rvalue *ptr =
+ gcc_jit_lvalue_as_rvalue (
+ gcc_jit_function_new_local (fn,
+ NULL,
+ t_node_ptr,
+ "ptr"));
+ gcc_jit_rvalue *a =
+ gcc_jit_lvalue_as_rvalue (
+ gcc_jit_function_new_local (fn, NULL, t_int, "a"));
+ gcc_jit_rvalue *b =
+ gcc_jit_lvalue_as_rvalue (
+ gcc_jit_function_new_local (fn, NULL, t_int, "b"));
+ gcc_jit_rvalue *c =
+ gcc_jit_lvalue_as_rvalue (
+ gcc_jit_function_new_local (fn, NULL, t_int, "c"));
+ gcc_jit_rvalue *d =
+ gcc_jit_lvalue_as_rvalue (
+ gcc_jit_function_new_local (fn, NULL, t_int, "d"));
+
+#define CHECK_RVALUE_DEBUG_STRING(RVALUE, EXPECTED) \
+ CHECK_STRING_VALUE ( \
+ gcc_jit_object_get_debug_string (gcc_jit_rvalue_as_object (RVALUE)), \
+ (EXPECTED))
+
+#define CHECK_LVALUE_DEBUG_STRING(LVALUE, EXPECTED) \
+ CHECK_STRING_VALUE ( \
+ gcc_jit_object_get_debug_string (gcc_jit_lvalue_as_object (LVALUE)), \
+ (EXPECTED))
+
+ /* Verify various simple compound expressions. */
+ {
+ CHECK_RVALUE_DEBUG_STRING (ptr, "ptr");
+
+ gcc_jit_lvalue *deref =
+ gcc_jit_rvalue_dereference_field (ptr,
+ NULL,
+ f_value);
+ CHECK_LVALUE_DEBUG_STRING (deref, "ptr->value");
+
+ gcc_jit_rvalue *deref_as_rvalue = gcc_jit_lvalue_as_rvalue (deref);
+
+#define BINOP(OP, A, B) \
+ gcc_jit_context_new_binary_op (ctxt, NULL, \
+ GCC_JIT_BINARY_OP_##OP, t_int, (A), (B))
+#define COMPARISON(OP, A, B) \
+ gcc_jit_context_new_comparison (ctxt, NULL, \
+ GCC_JIT_COMPARISON_##OP,(A), (B))
+
+ CHECK_RVALUE_DEBUG_STRING (
+ BINOP (PLUS, deref_as_rvalue, deref_as_rvalue),
+ "ptr->value + ptr->value");
+ CHECK_RVALUE_DEBUG_STRING (
+ BINOP (MULT, deref_as_rvalue, deref_as_rvalue),
+ "ptr->value * ptr->value");
+
+ /* Multiplication has higher precedence in C than addition, so this
+ dump shouldn't contain parentheses. */
+ CHECK_RVALUE_DEBUG_STRING (
+ BINOP (PLUS,
+ BINOP (MULT, a, b),
+ BINOP (MULT, c, d)),
+ "a * b + c * d");
+
+ /* ...but this one should. */
+ CHECK_RVALUE_DEBUG_STRING (
+ BINOP (MULT,
+ BINOP (PLUS, a, b),
+ BINOP (PLUS, c, d)),
+ "(a + b) * (c + d)");
+
+ /* Equal precedences don't need parentheses. */
+ CHECK_RVALUE_DEBUG_STRING (
+ BINOP (MULT,
+ BINOP (MULT, a, b),
+ BINOP (MULT, c, d)),
+ "a * b * c * d");
+
+ /* Comparisons and logical ops. */
+ CHECK_RVALUE_DEBUG_STRING (
+ COMPARISON (LT, a, b),
+ "a < b");
+
+ CHECK_RVALUE_DEBUG_STRING (
+ BINOP (LOGICAL_AND,
+ COMPARISON (LT, a, b),
+ COMPARISON (GT, c, d)),
+ "a < b && c > d");
+
+ CHECK_RVALUE_DEBUG_STRING (
+ BINOP (LOGICAL_AND,
+ BINOP (LOGICAL_OR,
+ COMPARISON (LT, a, b),
+ COMPARISON (LT, a, c)),
+ BINOP (LOGICAL_OR,
+ COMPARISON (GT, d, b),
+ COMPARISON (GT, d, c))),
+ "(a < b || a < c) && (d > b || d > c)");
+
+ CHECK_RVALUE_DEBUG_STRING (
+ BINOP (LOGICAL_OR,
+ BINOP (LOGICAL_AND,
+ COMPARISON (LT, a, b),
+ COMPARISON (LT, a, c)),
+ BINOP (LOGICAL_AND,
+ COMPARISON (GT, d, b),
+ COMPARISON (GT, d, c))),
+ "a < b && a < c || d > b && d > c");
+
+#undef BINOP
+#undef COMPARISON
+ }
+
+ /* PR jit/66539 "Missing parentheses in jit dumps".
+ Construct the equivalent of
+ ((cast)ptr->next)->next
+ and verify that the appropriate parentheses appear in the debug
+ string. */
+ {
+ /* "ptr->next". */
+ gcc_jit_lvalue *inner_deref =
+ gcc_jit_rvalue_dereference_field (ptr,
+ NULL,
+ f_next);
+ /* "((node *)ptr->next)"; the cast is redundant, purely
+ to exercise dumping. */
+ gcc_jit_rvalue *test_cast =
+ gcc_jit_context_new_cast (ctxt, NULL,
+ gcc_jit_lvalue_as_rvalue (inner_deref),
+ t_node_ptr);
+ /* "((node *)ptr->next)->next". */
+ gcc_jit_lvalue *outer_deref =
+ gcc_jit_rvalue_dereference_field (test_cast, /* gcc_jit_rvalue *ptr */
+ NULL, /* gcc_jit_location *loc */
+ f_next); /* gcc_jit_field *field */
+ CHECK_LVALUE_DEBUG_STRING (outer_deref,
+ "((struct node *)ptr->next)->next");
+ }
+
+#undef CHECK_LVALUE_DEBUG_STRING
+}
+
+void
+verify_code (gcc_jit_context *ctxt, gcc_jit_result *result)
+{
+ CHECK_NON_NULL (result);
+ /* We don't actually build any functions above;
+ nothing more to verify. */
+}
diff --git a/gcc/testsuite/jit.dg/test-quadratic.c b/gcc/testsuite/jit.dg/test-quadratic.c
index 715174c..d83a4fb 100644
--- a/gcc/testsuite/jit.dg/test-quadratic.c
+++ b/gcc/testsuite/jit.dg/test-quadratic.c
@@ -176,16 +176,8 @@ make_calc_discriminant (struct quadratic_test *testcase)
gcc_jit_param_as_rvalue (param_q),
NULL, testcase->c));
- gcc_jit_block_add_assignment (
- blk, NULL,
-
- /* q->discriminant =... */
- gcc_jit_rvalue_dereference_field (
- gcc_jit_param_as_rvalue (param_q),
- NULL,
- testcase->discriminant),
-
- /* (q->b * q->b) - (4 * q->a * q->c) */
+ /* (q->b * q->b) - (4 * q->a * q->c) */
+ gcc_jit_rvalue *rhs =
gcc_jit_context_new_binary_op (
testcase->ctxt, NULL,
GCC_JIT_BINARY_OP_MINUS,
@@ -213,7 +205,21 @@ make_calc_discriminant (struct quadratic_test *testcase)
testcase->ctxt, NULL,
GCC_JIT_BINARY_OP_MULT,
testcase->numeric_type,
- q_a, q_c)))); /* end of gcc_jit_function_add_assignment call. */
+ q_a, q_c)));
+
+ CHECK_STRING_VALUE (
+ gcc_jit_object_get_debug_string (gcc_jit_rvalue_as_object (rhs)),
+ "q->b * q->b - (double)4 * q->a * q->c");
+
+ gcc_jit_block_add_assignment (
+ blk, NULL,
+
+ /* q->discriminant =... */
+ gcc_jit_rvalue_dereference_field (
+ gcc_jit_param_as_rvalue (param_q),
+ NULL,
+ testcase->discriminant),
+ rhs);
gcc_jit_block_end_with_void_return (blk, NULL);
}
--
1.8.5.3