diff options
Diffstat (limited to 'gcc/function.c')
| -rw-r--r-- | gcc/function.c | 54 |
1 files changed, 29 insertions, 25 deletions
diff --git a/gcc/function.c b/gcc/function.c index a2956b3..23c5366 100644 --- a/gcc/function.c +++ b/gcc/function.c @@ -1666,7 +1666,7 @@ instantiate_decls (tree fndecl) static unsigned int instantiate_virtual_regs (void) { - rtx insn; + rtx insn, next; /* Compute the offsets to use for this function. */ in_arg_offset = FIRST_PARM_OFFSET (current_function_decl); @@ -1684,30 +1684,34 @@ instantiate_virtual_regs (void) /* Scan through all the insns, instantiating every virtual register still present. */ - for (insn = get_insns (); insn; insn = NEXT_INSN (insn)) - if (INSN_P (insn)) - { - /* These patterns in the instruction stream can never be recognized. - Fortunately, they shouldn't contain virtual registers either. */ - if (GET_CODE (PATTERN (insn)) == USE - || GET_CODE (PATTERN (insn)) == CLOBBER - || GET_CODE (PATTERN (insn)) == ADDR_VEC - || GET_CODE (PATTERN (insn)) == ADDR_DIFF_VEC - || GET_CODE (PATTERN (insn)) == ASM_INPUT) - continue; - - instantiate_virtual_regs_in_insn (insn); - - if (INSN_DELETED_P (insn)) - continue; - - for_each_rtx (®_NOTES (insn), instantiate_virtual_regs_in_rtx, NULL); - - /* Instantiate any virtual registers in CALL_INSN_FUNCTION_USAGE. */ - if (GET_CODE (insn) == CALL_INSN) - for_each_rtx (&CALL_INSN_FUNCTION_USAGE (insn), - instantiate_virtual_regs_in_rtx, NULL); - } + for (insn = get_insns (); insn; insn = next) + { + next = NEXT_INSN (insn); + if (INSN_P (insn)) + { + /* These patterns in the instruction stream can never be recognized. + Fortunately, they shouldn't contain virtual registers either. */ + if (GET_CODE (PATTERN (insn)) == USE + || GET_CODE (PATTERN (insn)) == CLOBBER + || GET_CODE (PATTERN (insn)) == ADDR_VEC + || GET_CODE (PATTERN (insn)) == ADDR_DIFF_VEC + || GET_CODE (PATTERN (insn)) == ASM_INPUT) + continue; + + instantiate_virtual_regs_in_insn (insn); + + if (INSN_DELETED_P (insn)) + continue; + + for_each_rtx (®_NOTES (insn), instantiate_virtual_regs_in_rtx, + NULL); + + /* Instantiate any virtual registers in CALL_INSN_FUNCTION_USAGE. */ + if (GET_CODE (insn) == CALL_INSN) + for_each_rtx (&CALL_INSN_FUNCTION_USAGE (insn), + instantiate_virtual_regs_in_rtx, NULL); + } + } /* Instantiate the virtual registers in the DECLs for debugging purposes. */ instantiate_decls (current_function_decl); |