Attachment 22339 Details for Bug 42240 – Initial patch to fix the bug

[patch] Initial patch to fix the bug

bug42240.patch (text/plain), 1.08 KB, created by Anitha Boyapati on 2010-11-09 10:24:11 UTC

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Creator: Anitha Boyapati

Created: 2010-11-09 10:24:11 UTC

Size: 1.08 KB

patch

obsolete

>--- avr.c.old	2010-11-09 14:40:35.000000000 -0600
>+++ avr.c.new	2010-11-09 14:37:49.000000000 -0600
>@@ -87,6 +87,7 @@
> static struct machine_function * avr_init_machine_status (void);
> static rtx avr_builtin_setjmp_frame_value (void);
> static bool avr_hard_regno_scratch_ok (unsigned int);
>+static bool avr_cannot_modify_jumps_p (void);
> 
> /* Allocate registers from r25 to r8 for parameters for function calls.  */
> #define FIRST_CUM_REG 26
>@@ -361,6 +362,9 @@
> #undef TARGET_HARD_REGNO_SCRATCH_OK
> #define TARGET_HARD_REGNO_SCRATCH_OK avr_hard_regno_scratch_ok
> 
>+#undef TARGET_CANNOT_MODIFY_JUMPS_P
>+#define TARGET_CANNOT_MODIFY_JUMPS_P avr_cannot_modify_jumps_p
>+
> struct gcc_target targetm = TARGET_INITIALIZER;
> 
> void
>@@ -6021,6 +6025,15 @@
>   return 1;
> }
> 
>+/* Avoid jump reording when epilogue is completed or when the function 
>+   is naked.*/
>+
>+static bool
>+avr_cannot_modify_jumps_p (void)
>+{
>+	return (epilogue_completed || cfun->machine->is_naked);
>+}
>+
> /* Output a branch that tests a single bit of a register (QI, HI or SImode)
>    or memory location in the I/O space (QImode only).
>

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Attachments on bug 42240: 19199 | 19200 | 19201 | 22339 | 22349