re PR c/24414 (Old-style asms don't clobber memory)

gcc/
2016-06-06  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        PR c/24414
        * cfgexpand.c (expand_asm_loc): Remove handling for ADDR_EXPR.
        Implicitly clobber memory for basic asm with non-empty assembler
        string.  Use targetm.md_asm_adjust also here.
        * compare-elim.c (arithmetic_flags_clobber_p): Use asm_noperands here.
        * final.c (final_scan_insn): Handle basic asm in PARALLEL block.
        * gimple.c (gimple_asm_clobbers_memory_p): Handle basic asm with
        non-empty assembler string.
        * ira.c (compute_regs_asm_clobbered): Use asm_noperands here.
        * recog.c (asm_noperands): Handle basic asm in PARALLEL block.
        (decode_asm_operands): Handle basic asm in PARALLEL block.
        (extract_insn): Handle basic asm in PARALLEL block.
        * doc/extend.texi: Mention new behavior of basic asm.
        * config/ia64/ia64 (rtx_needs_barrier): Handle ASM_INPUT here.
        * config/pa/pa.c (branch_to_delay_slot_p, branch_needs_nop_p,
        branch_needs_nop_p): Use asm_noperands.

gcc/testsuite/
2016-06-06  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        PR c/24414
        * gcc.target/i386/pr24414.c: New test.

From-SVN: r237133