For case like belowi test.c:
1:int foo(char c)
2:{
3: return ((c >= 'A' && c <= 'Z')
4: || (c >= 'a' && c <= 'z')
5: || (c >= '0' && c <='0'));}
the generated line number is incorrect for condition c>='A' of block 2:
Thus correct the condition op0 location.
gcno diff before and with this patch:
test.gcno: 575: block 11: 1:0001(tree)
test.gcno: 583: 01450000: 35:LINES
-test.gcno: 595: block 2:`test.c':1, 5
+test.gcno: 595: block 2:`test.c':1, 3
test.gcno: 626: 01450000: 31:LINES
test.gcno: 638: block 3:`test.c':3
test.gcno: 665: 01450000: 31:LINES
test.gcno: 677: block 4:`test.c':4
test.gcno: 704: 01450000: 31:LINES
test.gcno: 716: block 5:`test.c':4
test.gcno: 743: 01450000: 31:LINES
test.gcno: 755: block 6:`test.c':5
Also save line id in line vector for gcov debug use.
Regression tested pass on x86_64-linux-gnu and aarch64-linux-gnu, OK for
master?
gcc/ChangeLog:
PR gcov/97923
* gcov.cc (line_info::line_info): Init id.
(solve_flow_graph): Fix typo.
(add_line_counts): Set line->id.
* gimplify.cc (shortcut_cond_r): Correct cond expr op0 location.
gcc/testsuite/ChangeLog:
PR gcov/97923
* gcc.misc-tests/gcov-pr97923.c: New test.
Signed-off-by: Xionghu Luo <xionghu...@tencent.com>
---
gcc/gcov.cc | 9 ++++++---
gcc/gimplify.cc | 6 ++++--
gcc/testsuite/gcc.misc-tests/gcov-pr97923.c | 13 +++++++++++++
3 files changed, 23 insertions(+), 5 deletions(-)
create mode 100644 gcc/testsuite/gcc.misc-tests/gcov-pr97923.c
diff --git a/gcc/gcov.cc b/gcc/gcov.cc
index 2ec7248cc0e..77ca94c71c4 100644
--- a/gcc/gcov.cc
+++ b/gcc/gcov.cc
@@ -205,6 +205,8 @@ public:
/* Execution count. */
gcov_type count;
+ unsigned id;
+
/* Branches from blocks that end on this line. */
vector<arc_info *> branches;
@@ -216,8 +218,8 @@ public:
unsigned has_unexecuted_block : 1;
};
-line_info::line_info (): count (0), branches (), blocks (), exists (false),
- unexceptional (0), has_unexecuted_block (0)
+line_info::line_info (): count (0), id (0), branches (), blocks (),
+ exists (false), unexceptional (0), has_unexecuted_block (0)
{
}
@@ -2370,7 +2372,7 @@ solve_flow_graph (function_info *fn)
/* If the graph has been correctly solved, every block will have a
valid count. */
- for (unsigned i = 0; ix < fn->blocks.size (); i++)
+ for (unsigned i = 0; i < fn->blocks.size (); i++)
if (!fn->blocks[i].count_valid)
{
fnotice (stderr, "%s:graph is unsolvable for '%s'\n",
@@ -2730,6 +2732,7 @@ add_line_counts (coverage_info *coverage, function_info
*fn)
}
line->count += block->count;
}
+ line->id = ln;
}
has_any_line = true;
diff --git a/gcc/gimplify.cc b/gcc/gimplify.cc
index ade6e335da7..341a27b033e 100644
--- a/gcc/gimplify.cc
+++ b/gcc/gimplify.cc
@@ -3915,7 +3915,8 @@ shortcut_cond_r (tree pred, tree *true_label_p, tree
*false_label_p,
false_label_p = &local_label;
/* Keep the original source location on the first 'if'. */
- t = shortcut_cond_r (TREE_OPERAND (pred, 0), NULL, false_label_p, locus);
+ tree op0 = TREE_OPERAND (pred, 0);
+ t = shortcut_cond_r (op0, NULL, false_label_p, EXPR_LOCATION (op0));
append_to_statement_list (t, &expr);
/* Set the source location of the && on the second 'if'. */
@@ -3938,7 +3939,8 @@ shortcut_cond_r (tree pred, tree *true_label_p, tree
*false_label_p,
true_label_p = &local_label;
/* Keep the original source location on the first 'if'. */
- t = shortcut_cond_r (TREE_OPERAND (pred, 0), true_label_p, NULL, locus);
+ tree op0 = TREE_OPERAND (pred, 0);
+ t = shortcut_cond_r (op0, true_label_p, NULL, EXPR_LOCATION (op0));
append_to_statement_list (t, &expr);
/* Set the source location of the || on the second 'if'. */
diff --git a/gcc/testsuite/gcc.misc-tests/gcov-pr97923.c
b/gcc/testsuite/gcc.misc-tests/gcov-pr97923.c
new file mode 100644
index 00000000000..ad4f7d40817
--- /dev/null
+++ b/gcc/testsuite/gcc.misc-tests/gcov-pr97923.c
@@ -0,0 +1,13 @@
+/* { dg-options "-fprofile-arcs -ftest-coverage" } */
+/* { dg-do run { target native } } */
+
+int foo(int c)
+{
+ return ((c >= 'A' && c <= 'Z') /* count(1*) */
+ || (c >= 'a' && c <= 'z') /* count(1*) */
+ || (c >= '0' && c <= '0')); /* count(1*) */
+}
+
+int main() { foo(0); }
+
+/* { dg-final { run-gcov gcov-pr97923-1.c } } */
--
2.27.0
