Mercurial > hg > graal-compiler
diff src/cpu/sparc/vm/sharedRuntime_sparc.cpp @ 14416:6a936747b569
8024344: PPC64 (part 112): C argument in register AND stack slot.
Summary: On PPC, the first 13 floating point arguments to C calls are passed in floating point registers. Also, all but the first 8 arguments are passed on the stack. So there can be floating point arguments that are passed on the stack and in a register. We duplicate the regs datastructure in c_calling_convention() to represent this.
Reviewed-by: kvn, cjplummer
| author | goetz |
|---|---|
| date | Thu, 12 Sep 2013 13:51:13 -0700 |
| parents | 46c544b8fbfc |
| children | 2b8e28fdf503 |
line wrap: on
line diff
--- a/src/cpu/sparc/vm/sharedRuntime_sparc.cpp Fri Sep 06 20:16:09 2013 +0200 +++ b/src/cpu/sparc/vm/sharedRuntime_sparc.cpp Thu Sep 12 13:51:13 2013 -0700 @@ -1118,7 +1118,9 @@ int SharedRuntime::c_calling_convention(const BasicType *sig_bt, VMRegPair *regs, + VMRegPair *regs2, int total_args_passed) { + assert(regs2 == NULL, "not needed on sparc"); // Return the number of VMReg stack_slots needed for the args. // This value does not include an abi space (like register window @@ -2096,7 +2098,7 @@ // the 1st six register arguments). It's weird see int_stk_helper. // int out_arg_slots; - out_arg_slots = c_calling_convention(out_sig_bt, out_regs, total_c_args); + out_arg_slots = c_calling_convention(out_sig_bt, out_regs, NULL, total_c_args); if (is_critical_native) { // Critical natives may have to call out so they need a save area @@ -2843,7 +2845,7 @@ // the 1st six register arguments). It's weird see int_stk_helper. // int out_arg_slots; - out_arg_slots = c_calling_convention(out_sig_bt, out_regs, total_c_args); + out_arg_slots = c_calling_convention(out_sig_bt, out_regs, NULL, total_c_args); // Calculate the total number of stack slots we will need.