+2009-04-03 Alan Modra <amodra@bigpond.net.au>
+
+ * config.gcc (powerpc-*-linux*): Merge variants.
+
+2009-04-02 Chao-ying Fu <fu@mips.com>
+ James Grosbach <james.grosbach@microchip.com>
+
+ * config/mips/mips.c (mips_frame_info): Add acc_mask, num_acc,
+ num_cop0_regs, acc_save_offset, cop0_save_offset, acc_sp_offset,
+ cop0_sp_offset.
+ (machine_function): Add interrupt_handler_p, use_shadow_register_set_p,
+ keep_interrupts_masked_p, use_debug_exception_return_p.
+ (mips_attribute_table): Add interrupt, use_shadow_register_set,
+ keep_interrupts_masked, use_debug_exception_return.
+ (mips_interrupt_type_p, mips_use_shadow_register_set_p,
+ mips_keep_interrupts_masked_p, mips_use_debug_exception_return_p):
+ New functions.
+ (mips_function_ok_for_sibcall): Return false for interrupt handlers.
+ (mips_print_operand): Process COP0 registers to print $0 .. $31
+ correctly for GAS to process.
+ (mips_interrupt_extra_call_saved_reg_p): New function.
+ (mips_cfun_call_saved_reg_p): For interrupt handlers, we need to check
+ extra registers.
+ (mips_cfun_might_clobber_call_saved_reg_p): Likewise.
+ (mips_compute_frame_info): Add supports for interrupt context that
+ includes doubleword accumulators and COP0 registers.
+ (mips_for_each_saved_acc): New function.
+ (mips_for_each_saved_gpr_and_fpr): Change the function name from
+ mips_for_each_saved_reg.
+ (mips_save_reg): Save accumulators.
+ (mips_kernel_reg_p): A new for_each_rtx callback.
+ (mips_expand_prologue): Support interrupt handlers.
+ (mips_restore_reg): Restore accumulators.
+ (mips_expand_epilogue): Support interrupt handlers.
+ (mips_can_use_return_insn): Return false for interrupt handlers.
+ (mips_epilogue_uses): New function.
+ * config/mips/mips.md (UNSPEC_ERET, UNSPEC_DERET, UNSPEC_DI,
+ UNSPEC_EHB, UNSPEC_RDPGPR, UNSPEC_COP0): New UNSPEC.
+ (mips_eret, mips_deret, mips_di, mips_ehb, mips_rdpgpr,
+ cop0_move): New instructions.
+ * config/mips/mips-protos.h (mips_epilogue_uses): Declare.
+ * config/mips/mips.h (K0_REG_NUM, K1_REG_NUM, KERNEL_REG_P): New
+ defines.
+ (COP0_STATUS_REG_NUM, COP0_CAUSE_REG_NUM, COP0_EPC_REG_NUM):
+ New defines.
+ (CAUSE_IPL, SR_IPL, SR_EXL, SR_IE): New defines.
+ (MIPS_PROLOGUE_TEMP_REGNUM, MIPS_EPILOGUE_TEMP_REGNUM): For
+ interrupt handlers, we use K0 as the temporary register.
+ (EPILOGUE_USES): Change to a function call.
+ * config/mips/sde.h (MIPS_EPILOGUE_TEMP_REGNUM): For interrupt
+ handlers, we use K0 as the temporary register.
+
+ * doc/extend.texi (Function Attributes): Document interrupt,
+ use_shadow_register_set, keep_interrupts_masked,
+ use_debug_exception_return for MIPS attributes.
+
+2009-04-03 Alan Modra <amodra@bigpond.net.au>
+
+ * config.gcc (powerpc64-*-gnu*): Add rs6000/default64.h to tm_file.
+ Remove a number of t-files from tmake_file.
+ * config/rs6000/sysv4.opt (mprototype): Name variable target_prototype.
+ * config/rs6000/sysv4.h (TARGET_PROTOTYPE): Define.
+ * config/rs6000/linux64.h (SUBSUBTARGET_OVERRIDE_OPTIONS): Set
+ target_prototype, not TARGET_PROTOTYPE.
+ (LINK_OS_GNU_SPEC): Define.
+ * config/rs6000/t-linux64 (LIB2FUNCS_EXTRA): Delete tramp.S
+ and darwin-ldoubdle.c.
+
+2009-04-02 Michael Meissner <meissner@linux.vnet.ibm.com>
+
+ PR driver/39293
+ * gcc.c (save_temps_flag): Add support for -save-temps=obj.
+ (cpp_options): Ditto.
+ (default_compilers): Ditto.
+ (display_help): Ditto.
+ (process_command): Ditto.
+ (do_spec_1): Ditto.
+ (set_input): Use lbasename instead of duplicate code.
+ (save_temps_prefix): New static for -save-temps=obj.
+ (save_temps_length): Ditto.
+
+ * doc/invoke.texi (-save-temps=obj): Document new variant to
+ -save-temps switch.
+
+2009-04-02 Jeff Law <law@redhat.com>
+
+ * reload1.c (fixup_eh_region_notes): Remove write-only "trap_count"
+ variable.
+
2009-04-02 H.J. Lu <hongjiu.lu@intel.com>
* configure.ac: Support -Bstatic/-Bdynamic for linker version > 2.
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