[gcc r14-1838] Fix 'dg-warning' in 'c-c++-common/Wfree-nonheap-object-3.c' for C++

[gcc r14-1838] Fix 'dg-warning' in 'c-c++-common/Wfree-nonheap-object-3.c' for C++

[Thomas Schwinge]

https://gcc.gnu.org/g:df071fbd467f0cb3711119ef41d74792fc5e6c8c

commit r14-1838-gdf071fbd467f0cb3711119ef41d74792fc5e6c8c
Author: Thomas Schwinge <thomas@codesourcery.com>
Date:   Wed Jun 7 17:12:01 2023 +0200

    Fix 'dg-warning' in 'c-c++-common/Wfree-nonheap-object-3.c' for C++
    
        [...]/c-c++-common/Wfree-nonheap-object-3.c:57:24: warning: 'malloc (dealloc_float)' attribute ignored with deallocation functions declared 'inline' [-Wattributes]
        [...]/c-c++-common/Wfree-nonheap-object-3.c:51:1: note: deallocation function declared here
        [...]/c-c++-common/Wfree-nonheap-object-3.c: In function 'void test_nowarn_int(int)':
        [...]/c-c++-common/Wfree-nonheap-object-3.c:25:20: warning: 'void __builtin_free(void*)' called on pointer 'p' with nonzero offset 4 [-Wfree-nonheap-object]
        [...]/c-c++-common/Wfree-nonheap-object-3.c:24:24: note: returned from 'int* alloc_int(int)'
        [...]/c-c++-common/Wfree-nonheap-object-3.c: In function 'void test_nowarn_long(int)':
        [...]/c-c++-common/Wfree-nonheap-object-3.c:45:18: warning: 'void dealloc_long(long int*)' called on pointer '<unknown>' with nonzero offset 8 [-Wfree-nonheap-object]
        [...]/c-c++-common/Wfree-nonheap-object-3.c:44:26: note: returned from 'long int* alloc_long(int)'
        In function 'void dealloc_float(float*)',
            inlined from 'void test_nowarn_float(int)' at [...]/c-c++-common/Wfree-nonheap-object-3.c:68:19:
        [...]/c-c++-common/Wfree-nonheap-object-3.c:53:18: warning: 'void __builtin_free(void*)' called on pointer '<unknown>' with nonzero offset 8 [-Wfree-nonheap-object]
        [...]/c-c++-common/Wfree-nonheap-object-3.c: In function 'void test_nowarn_float(int)':
        [...]/c-c++-common/Wfree-nonheap-object-3.c:67:28: note: returned from 'float* alloc_float(int)'
        PASS: c-c++-common/Wfree-nonheap-object-3.c  -std=gnu++98  (test for warnings, line 25)
        FAIL: c-c++-common/Wfree-nonheap-object-3.c  -std=gnu++98  (test for warnings, line 45)
        PASS: c-c++-common/Wfree-nonheap-object-3.c  -std=gnu++98  (test for warnings, line 51)
        PASS: c-c++-common/Wfree-nonheap-object-3.c  -std=gnu++98  (test for warnings, line 53)
        PASS: c-c++-common/Wfree-nonheap-object-3.c  -std=gnu++98  (test for warnings, line 57)
        FAIL: c-c++-common/Wfree-nonheap-object-3.c  -std=gnu++98 (test for excess errors)
        Excess errors:
        [...]/c-c++-common/Wfree-nonheap-object-3.c:45:18: warning: 'void dealloc_long(long int*)' called on pointer '<unknown>' with nonzero offset 8 [-Wfree-nonheap-object]
    
    ..., that is: decorated 'void dealloc_long(long int*)' instead of plain
    'dealloc_long' -- similar to how all the other 'dg-warning's allow for the
    decorated function signature in addition to the plain one.
    
    This issue was latent since the test case was added in
    commit fe7f75cf16783589eedbab597e6d0b8d35d7e470
    "Correct/improve maybe_emit_free_warning (PR middle-end/98166, PR c++/57111, PR middle-end/98160)",
    and was finally exposed by my recent
    commit 9c03391ba447ff86038d6a34c90ae737c3915b5f
    "Tighten 'dg-warning' alternatives in 'c-c++-common/Wfree-nonheap-object{,-2,-3}.c'".
    
            gcc/testsuite/
            * c-c++-common/Wfree-nonheap-object-3.c: Fix 'dg-warning' for C++.

Diff:
---
 gcc/testsuite/c-c++-common/Wfree-nonheap-object-3.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gcc/testsuite/c-c++-common/Wfree-nonheap-object-3.c b/gcc/testsuite/c-c++-common/Wfree-nonheap-object-3.c
index 8f20de8455f..23d89a31454 100644
--- a/gcc/testsuite/c-c++-common/Wfree-nonheap-object-3.c
+++ b/gcc/testsuite/c-c++-common/Wfree-nonheap-object-3.c
@@ -42,7 +42,7 @@ void test_nowarn_long (int n)
 
   {
     long *p = alloc_long (n);
-    dealloc_long (p + 1);     // { dg-warning "'dealloc_long' called on pointer '(p|<unknown>)' with nonzero offset" }
+    dealloc_long (p + 1);     // { dg-warning "'(dealloc_long|void dealloc_long\\(long int\\*\\))' called on pointer '(p|<unknown>)' with nonzero offset" }
   }
 }