[PATCH 8/8] c: Don't error for const or restrict as asm-qualifier

[Segher Boessenkool]

2018-12-27  Segher Boessenkool  <seg...@kernel.crashing.org>

c/
        * c-parser.c (c_parser_asm_statement): Output a warning instead of an
        error for const and restrict.

testsuite/
        * gcc.dg/asm-qual-1.c: Adjust.

---
 gcc/c/c-parser.c                  | 2 +-
 gcc/testsuite/gcc.dg/asm-qual-1.c | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/gcc/c/c-parser.c b/gcc/c/c-parser.c
index 4baad62..a960169 100644
--- a/gcc/c/c-parser.c
+++ b/gcc/c/c-parser.c
@@ -6345,7 +6345,7 @@ c_parser_asm_statement (c_parser *parser)
 
        case RID_CONST:
        case RID_RESTRICT:
-         error_at (loc, "%qE is not an asm qualifier", token->value);
+         warning_at (loc, 0, "%qE is not an asm qualifier", token->value);
          c_parser_consume_token (parser);
          continue;
 
diff --git a/gcc/testsuite/gcc.dg/asm-qual-1.c 
b/gcc/testsuite/gcc.dg/asm-qual-1.c
index eff6b45..4982a6b 100644
--- a/gcc/testsuite/gcc.dg/asm-qual-1.c
+++ b/gcc/testsuite/gcc.dg/asm-qual-1.c
@@ -8,7 +8,7 @@ f (void)
 {
   asm volatile ("");
 
-  asm const (""); /* { dg-error {'const' is not an asm qualifier} } */
+  asm const (""); /* { dg-warning {'const' is not an asm qualifier} } */
 
-  asm restrict (""); /* { dg-error {'restrict' is not an asm qualifier} } */
+  asm restrict (""); /* { dg-warning {'restrict' is not an asm qualifier} } */
 }
-- 
1.8.3.1