re PR target/89093 (C++ exception handling clobbers d8 VFP register)

	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.

From-SVN: r270690

gcc/ChangeLog

+2019-04-30  Jakub Jelinek  <jakub@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.
+
 2019-04-30  Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>
 
 	PR target/86538
 	* config/aarch64/aarch64-c.c (aarch64_update_cpp_builtins):
-	Define __ARM_FEATURE_ATOMICS
+	Define __ARM_FEATURE_ATOMICS.
 
 2019-04-30  Martin Liska  <mliska@suse.cz>
 

gcc/config/aarch64/aarch64.c

@@ -12536,10 +12536,6 @@ aarch64_process_one_target_attr (char *arg_str)
   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/ChangeLog

 2019-04-30  Jakub Jelinek  <jakub@redhat.com>
 
+	PR target/89093
+	* gcc.target/aarch64/pr89093.c: New test.
+	* gcc.target/aarch64/pr63304_1.c: Remove space from target string.
+
 	PR tree-optimization/89475
 	* gcc.dg/tree-ssa/pr89475.c: New test.
 

gcc/testsuite/gcc.target/aarch64/pr63304_1.c

 /* { 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)

gcc/testsuite/gcc.target/aarch64/pr89093.c

+/* 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) {}