From 74bd77a8c6d93ee63bc3c3f604a64f2862754047 Mon Sep 17 00:00:00 2001 From: Richard Stallman Date: Thu, 16 Jul 1992 19:03:06 +0000 Subject: [PATCH] entered into RCS From-SVN: r1594 --- gcc/function.c | 26 +++++++++++++++++++------- 1 file changed, 19 insertions(+), 7 deletions(-) diff --git a/gcc/function.c b/gcc/function.c index 02ce0f97517..37a0f47a0c8 100644 --- a/gcc/function.c +++ b/gcc/function.c @@ -2804,14 +2804,8 @@ assign_parms (fndecl, second_time) } DECL_RTL (parm) = stack_parm; } - else if (! ( -#if 0 /* This change was turned off because it makes compilation bigger. */ - !optimize -#else /* It's not clear why the following was replaced. */ - /* Obsoleted by preceding line. */ - (obey_regdecls && ! DECL_REGISTER (parm) + else if (! ((obey_regdecls && ! DECL_REGISTER (parm) && ! DECL_INLINE (fndecl)) -#endif /* layout_decl may set this. */ || TREE_ADDRESSABLE (parm) || TREE_SIDE_EFFECTS (parm) @@ -2858,6 +2852,24 @@ assign_parms (fndecl, second_time) else emit_move_insn (parmreg, validize_mem (entry_parm)); + /* If we were passed a pointer but the actual value + can safely live in a register, put it in one. */ + if (passed_pointer && nominal_mode != BLKmode + && ! ((obey_regdecls && ! DECL_REGISTER (parm) + && ! DECL_INLINE (fndecl)) + /* layout_decl may set this. */ + || TREE_ADDRESSABLE (parm) + || TREE_SIDE_EFFECTS (parm) + /* If -ffloat-store specified, don't put explicit + float variables into registers. */ + || (flag_float_store + && TREE_CODE (TREE_TYPE (parm)) == REAL_TYPE))) + { + parmreg = gen_reg_rtx (nominal_mode); + emit_move_insn (parmreg, DECL_RTL (parm)); + DECL_RTL (parm) = parmreg; + } + /* In any case, record the parm's desired stack location in case we later discover it must live in the stack. */ if (REGNO (parmreg) >= nparmregs) -- 2.30.2