[gcc(refs/users/aoliva/heads/testme)] strub: disable on rl78

[Alexandre Oliva]

https://gcc.gnu.org/g:df6e59497f371730faf42f2c573128aae83d09a7

commit df6e59497f371730faf42f2c573128aae83d09a7
Author: Alexandre Oliva <oliva@adacore.com>
Date:   Fri Dec 8 21:41:52 2023 -0300

    strub: disable on rl78
    
    rl78 allocation of virtual registers to physical registers doesn't
    operate on asm statements, and strub uses asm statements in the
    runtime and in the generated code, to the point that the runtime
    won't build.  Force strub disabled on that target.
    
    
    for  gcc/ChangeLog
    
            * config/rl78/rl78.c (TARGET_HAVE_STRUB_SUPPORT_FOR): Disable.

Diff:
---
 gcc/config/rl78/rl78.cc | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/gcc/config/rl78/rl78.cc b/gcc/config/rl78/rl78.cc
index 5d8fddbd905..f3507280859 100644
--- a/gcc/config/rl78/rl78.cc
+++ b/gcc/config/rl78/rl78.cc
@@ -4972,6 +4972,11 @@ rl78_preferred_reload_class (rtx x ATTRIBUTE_UNUSED, reg_class_t rclass)
 }
 
 
+/* The strub runtime uses asms, and physical register allocation won't
+   deal with them, so disable it.  */
+#undef TARGET_HAVE_STRUB_SUPPORT_FOR
+#define TARGET_HAVE_STRUB_SUPPORT_FOR hook_bool_tree_false
+
 struct gcc_target targetm = TARGET_INITIALIZER;
 
 #include "gt-rl78.h"