Improve warning suppression for inlined functions.

Resolves:
PR middle-end/98871 - Cannot silence -Wmaybe-uninitialized at declaration site
PR middle-end/98512 - #pragma GCC diagnostic ignored ineffective in conjunction with alias attribute

gcc/ChangeLog:

	* builtins.c (warn_string_no_nul): Remove %G.
	(maybe_warn_for_bound): Same.
	(warn_for_access): Same.
	(check_access): Same.
	(check_strncat_sizes): Same.
	(expand_builtin_strncat): Same.
	(expand_builtin_strncmp): Same.
	(expand_builtin): Same.
	(expand_builtin_object_size): Same.
	(warn_dealloc_offset): Same.
	(maybe_emit_free_warning): Same.
	* calls.c (maybe_warn_alloc_args_overflow): Same.
	(maybe_warn_nonstring_arg): Same.
	(maybe_warn_rdwr_sizes): Same.
	* expr.c (expand_expr_real_1): Remove %K.
	* gimple-fold.c (gimple_fold_builtin_strncpy): Remove %G.
	(gimple_fold_builtin_strncat): Same.
	* gimple-ssa-sprintf.c (format_directive): Same.
	(handle_printf_call): Same.
	* gimple-ssa-warn-alloca.c (pass_walloca::execute): Same.
	* gimple-ssa-warn-restrict.c (maybe_diag_overlap): Same.
	(maybe_diag_access_bounds): Same.  Call gimple_location.
	(check_bounds_or_overlap): Same.
	* trans-mem.c (ipa_tm_scan_irr_block): Remove %K.  Simplify.
	* tree-ssa-ccp.c (pass_post_ipa_warn::execute): Remove %G.
	* tree-ssa-strlen.c (maybe_warn_overflow): Same.
	(maybe_diag_stxncpy_trunc): Same.
	(handle_builtin_stxncpy_strncat): Same.
	(maybe_warn_pointless_strcmp): Same.
	* tree-ssa-uninit.c (maybe_warn_operand): Same.

gcc/testsuite/ChangeLog:

	* gcc.dg/Wobjsize-1.c: Prune expected output.
	* gcc.dg/Warray-bounds-71.c: New test.
	* gcc.dg/Warray-bounds-71.h: New test header.
	* gcc.dg/Warray-bounds-72.c: New test.
	* gcc.dg/Warray-bounds-73.c: New test.
	* gcc.dg/Warray-bounds-74.c: New test.
	* gcc.dg/Warray-bounds-75.c: New test.
	* gcc.dg/Wfree-nonheap-object-4.c: Adjust expected output.
	* gcc.dg/Wfree-nonheap-object-5.c: New test.
	* gcc.dg/Wfree-nonheap-object-6.c: New test.
	* gcc.dg/pragma-diag-10.c: New test.
	* gcc.dg/pragma-diag-9.c: New test.
	* gcc.dg/uninit-suppress_3.c: New test.
	* gcc.dg/pr79214.c: Xfail tests.
	* gcc.dg/tree-ssa/builtin-sprintf-warn-27.c: New test.
	* gcc.dg/format/c90-printf-1.c: Adjust expected output.

1 files changed, 9 insertions, 9 deletions

diff --git a/gcc/gimple-fold.c b/gcc/gimple-fold.c
index 6803153..1401092 100644
--- a/gcc/gimple-fold.c
+++ b/gcc/gimple-fold.c
@@ -2115,13 +2115,13 @@ gimple_fold_builtin_strncpy (gimple_stmt_iterator *gsi,
 	  tree slen = get_maxval_strlen (src, SRK_STRLEN);
 	  if (slen && !integer_zerop (slen))
 	    warning_at (loc, OPT_Wstringop_truncation,
-			"%G%qD destination unchanged after copying no bytes "
+			"%qD destination unchanged after copying no bytes "
 			"from a string of length %E",
-			stmt, fndecl, slen);
+			fndecl, slen);
 	  else
 	    warning_at (loc, OPT_Wstringop_truncation,
-			"%G%qD destination unchanged after copying no bytes",
-			stmt, fndecl);
+			"%qD destination unchanged after copying no bytes",
+			fndecl);
 	}
 
       replace_call_with_value (gsi, dest);
@@ -2498,11 +2498,11 @@ gimple_fold_builtin_strncat (gimple_stmt_iterator *gsi)
 	  location_t loc = gimple_location (stmt);
 	  nowarn = warning_at (loc, OPT_Wstringop_overflow_,
 			       cmpdst == 0
-			       ? G_("%G%qD specified bound %E equals "
+			       ? G_("%qD specified bound %E equals "
 				    "destination size")
-			       : G_("%G%qD specified bound %E exceeds "
+			       : G_("%qD specified bound %E exceeds "
 				    "destination size %wu"),
-			       stmt, fndecl, len, dstsize);
+			       fndecl, len, dstsize);
 	  if (nowarn)
 	    suppress_warning (stmt, OPT_Wstringop_overflow_);
 	}
@@ -2518,8 +2518,8 @@ gimple_fold_builtin_strncat (gimple_stmt_iterator *gsi)
 	 of the destination is unknown (it's not an uncommon mistake
 	 to specify as the bound to strncpy the length of the source).  */
       if (warning_at (loc, OPT_Wstringop_overflow_,
-		      "%G%qD specified bound %E equals source length",
-		      stmt, fndecl, len))
+		      "%qD specified bound %E equals source length",
+		      fndecl, len))
 	suppress_warning (stmt, OPT_Wstringop_overflow_);
     }