Hello!
The problem was that exception_receiver pattern recorded a stack slot
that referred to virtual-stack-vars. Recent changes moved generation
of exception landing pads after virtuals were instantiated, so in
bbpart pass we emitted:
(insn 262 266 263 51 (unspec_volatile [
(mem/c:DI (plus:DI (reg/f:DI 65 virtual-stack-vars)
(const_int 16 [0x10])) [0 S8 A64])
] UNSPECV_EHR) 278 {*exception_receiver_2}
(nil))
Later passes choked on uninstantiated register.
Attached patch defines TARGET_INSTANTIATE_DECLS to also instantiate
registers in saved stack slot address.
2011-08-06 Uros Bizjak <[email protected]>
PR target/50001
* config/alpha/alpha.c (alpha_instantiate_decls): New function.
(TARGET_INSTANTIATE_DECLS): New define.
Patch was bootstrapped and regtested on alphaev68-pc-linux-gnu, where
fixes g++.dg/tree-prof/partition1.C ICEs in the testsuite.
Patch was committed to SVN mainline, will be also committed to release branches.
Uros.
Index: alpha.c
===================================================================
--- alpha.c (revision 177507)
+++ alpha.c (working copy)
@@ -4632,6 +4632,13 @@ alpha_gp_save_rtx (void)
return m;
}
+static void
+alpha_instantiate_decls (void)
+{
+ if (cfun->machine->gp_save_rtx != NULL_RTX)
+ instantiate_decl_rtl (cfun->machine->gp_save_rtx);
+}
+
static int
alpha_ra_ever_killed (void)
{
@@ -9811,6 +9818,9 @@ alpha_conditional_register_usage (void)
#undef TARGET_TRAMPOLINE_INIT
#define TARGET_TRAMPOLINE_INIT alpha_trampoline_init
+#undef TARGET_INSTANTIATE_DECLS
+#define TARGET_INSTANTIATE_DECLS alpha_instantiate_decls
+
#undef TARGET_SECONDARY_RELOAD
#define TARGET_SECONDARY_RELOAD alpha_secondary_reload
