gcc/gcc10-pr96939.patch

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2020-09-16 09:42:59 +00:00
2020-09-07 Jakub Jelinek <jakub@redhat.com>
PR target/96939
* config/arm/arm.c (arm_override_options_after_change): Don't call
arm_configure_build_target here.
(arm_set_current_function): Call arm_override_options_after_change_1
at the end.
* gcc.target/arm/lto/pr96939_0.c: New test.
* gcc.target/arm/lto/pr96939_1.c: New file.
--- gcc/config/arm/arm.c.jj 2020-07-30 15:04:38.136293101 +0200
+++ gcc/config/arm/arm.c 2020-09-07 10:43:54.809561852 +0200
@@ -3037,10 +3037,6 @@ arm_override_options_after_change_1 (str
static void
arm_override_options_after_change (void)
{
- arm_configure_build_target (&arm_active_target,
- TREE_TARGET_OPTION (target_option_default_node),
- &global_options_set, false);
-
arm_override_options_after_change_1 (&global_options);
}
@@ -32338,6 +32334,8 @@ arm_set_current_function (tree fndecl)
cl_target_option_restore (&global_options, TREE_TARGET_OPTION (new_tree));
save_restore_target_globals (new_tree);
+
+ arm_override_options_after_change_1 (&global_options);
}
/* Implement TARGET_OPTION_PRINT. */
--- gcc/testsuite/gcc.target/arm/lto/pr96939_0.c.jj 2020-09-07 11:26:45.909937609 +0200
+++ gcc/testsuite/gcc.target/arm/lto/pr96939_0.c 2020-09-07 11:29:18.722706535 +0200
@@ -0,0 +1,15 @@
+/* PR target/96939 */
+/* { dg-lto-do link } */
+/* { dg-require-effective-target arm_arch_v8a_ok } */
+/* { dg-lto-options { { -flto -O2 } } } */
+
+extern unsigned crc (unsigned, const void *);
+typedef unsigned (*fnptr) (unsigned, const void *);
+volatile fnptr fn;
+
+int
+main ()
+{
+ fn = crc;
+ return 0;
+}
--- gcc/testsuite/gcc.target/arm/lto/pr96939_1.c.jj 2020-09-07 11:26:49.365887153 +0200
+++ gcc/testsuite/gcc.target/arm/lto/pr96939_1.c 2020-09-07 11:25:13.885281180 +0200
@@ -0,0 +1,10 @@
+/* PR target/96939 */
+/* { dg-options "-march=armv8-a+crc" } */
+
+#include <arm_acle.h>
+
+unsigned
+crc (unsigned x, const void *y)
+{
+ return __crc32cw (x, *(unsigned *) y);
+}