On Tue, Apr 16, 2019 at 07:50:35PM +0200, Jakub Jelinek wrote:
> On Fri, Apr 12, 2019 at 05:10:48PM +0100, Ramana Radhakrishnan wrote:
> > No, that's not right. we should get rid of this.
> 
> Here is a patch for that.
> 
> Bootstrapped/regtested on armv7hl-linux-gnueabi, ok for trunk?

And here is the same thing for aarch64.  Bootstrapped/regtested on
aarch64-linux, ok for trunk?

I think it is better not to accept any spaces in there, than accepting it
only at the beginning and after , but not e.g. at the end of before ,
like the trunk currently does, furthermore, e.g. x86 or ppc don't allow
spaces there.

2019-04-16  Jakub Jelinek  <ja...@redhat.com>

        PR target/89093
        * config/aarch64/aarch64.c (aarch64_process_one_target_attr): Don't skip
        whitespace at the start of target attribute string.

        * gcc.target/aarch64/pr89093.c: New test.
        * gcc.target/aarch64/pr63304_1.c: Remove space from target string.

--- gcc/config/aarch64/aarch64.c.jj     2019-04-11 10:26:22.907293129 +0200
+++ gcc/config/aarch64/aarch64.c        2019-04-15 19:59:55.784226278 +0200
@@ -12536,10 +12536,6 @@ aarch64_process_one_target_attr (char *a
   char *str_to_check = (char *) alloca (len + 1);
   strcpy (str_to_check, arg_str);
 
-  /* Skip leading whitespace.  */
-  while (*str_to_check == ' ' || *str_to_check == '\t')
-    str_to_check++;
-
   /* We have something like __attribute__ ((target ("+fp+nosimd"))).
      It is easier to detect and handle it explicitly here rather than going
      through the machinery for the rest of the target attributes in this
--- gcc/testsuite/gcc.target/aarch64/pr89093.c.jj       2019-04-15 
20:02:25.456788897 +0200
+++ gcc/testsuite/gcc.target/aarch64/pr89093.c  2019-04-15 20:02:04.433131260 
+0200
@@ -0,0 +1,7 @@
+/* PR target/89093 */
+/* { dg-do compile } */
+
+__attribute__((target ("  no-strict-align"))) void f1 (void) {} /* { dg-error 
"is not valid" } */
+__attribute__((target ("       general-regs-only"))) void f2 (void) {} /* { 
dg-error "is not valid" } */
+#pragma GCC target ("    general-regs-only")   /* { dg-error "is not valid" } 
*/
+void f3 (void) {}
--- gcc/testsuite/gcc.target/aarch64/pr63304_1.c.jj     2017-09-13 
16:22:19.795513580 +0200
+++ gcc/testsuite/gcc.target/aarch64/pr63304_1.c        2019-04-15 
20:27:17.724847578 +0200
@@ -1,7 +1,7 @@
 /* { dg-do assemble } */
 /* { dg-options "-O1 --save-temps" } */
 #pragma GCC push_options
-#pragma GCC target ("+nothing+simd, cmodel=small")
+#pragma GCC target ("+nothing+simd,cmodel=small")
 
 int
 cal (double a)


        Jakub

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