From 21cd0c4f8654286ce8b14157529fcfc916fc209e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bj=C3=B6rn=20Gustavsson?= <bjorn@erlang.org>
Date: Thu, 11 Nov 2010 13:49:32 +0100
Subject: Eliminate the special instructions for selecting floats and bignums

---
 erts/emulator/beam/beam_emu.c | 103 ------------------------------------------
 1 file changed, 103 deletions(-)

(limited to 'erts/emulator/beam/beam_emu.c')

diff --git a/erts/emulator/beam/beam_emu.c b/erts/emulator/beam/beam_emu.c
index 05afedcc7a..266b897672 100644
--- a/erts/emulator/beam/beam_emu.c
+++ b/erts/emulator/beam/beam_emu.c
@@ -2846,109 +2846,6 @@ void process_main(void)
      Goto(*I);
  }     
 
- OpCase(i_select_big_sf):
-    {
-	Eterm* bigp;
-	Uint arity;
-	Eterm* given;
-	Uint given_arity;
-	Uint given_size;
-
-	GetArg1(0, tmp_arg1);
-	if (is_big(tmp_arg1)) {
-
-	    /*
-	     * The loader has sorted the bignumbers in descending order
-	     * on the arity word.  Therefore, we know that the search
-	     * has failed as soon as we encounter an arity word less than
-	     * the arity word of the given number.  There is a zero word
-	     * (less than any valid arity word) stored after the last bignumber.
-	     */
-
- 	    given = big_val(tmp_arg1);
-	    given_arity = given[0];
-	    given_size = thing_arityval(given_arity);
-	    bigp = (Eterm *) &Arg(2);
-	    while ((arity = bigp[0]) > given_arity) {
-		bigp += (TermWords(thing_arityval(arity) + 1) + 1) * (sizeof(BeamInstr)/sizeof(Eterm));
-	    }
-	    while (bigp[0] == given_arity) {
-		if (memcmp(bigp+1, given+1, sizeof(Eterm)*given_size) == 0) {
-		    BeamInstr *tmp =
-			((BeamInstr *) (UWord) bigp) + TermWords(given_size + 1);
-		    SET_I((BeamInstr *) *tmp);
-		    Goto(*I);
-		}
-		bigp += (TermWords(thing_arityval(arity) + 1) + 1) * (sizeof(BeamInstr)/sizeof(Eterm));
-	    }
-	}
-
-	/*
-	 * Failed.
-	 */
-
-	SET_I((BeamInstr *) Arg(1));
-	Goto(*I);
-    }
-
-#if defined(ARCH_64) && !HALFWORD_HEAP
- OpCase(i_select_float_sfI):
- {
-     Uint f;
-     int n;
-     struct ValLabel {
-	 Uint f;
-	 BeamInstr* addr;
-     };
-     struct ValLabel* ptr;
-
-     GetArg1(0, tmp_arg1);
-     ASSERT(is_float(tmp_arg1));
-     f = float_val(tmp_arg1)[1];
-     n = Arg(2);
-     ptr = (struct ValLabel *) &Arg(3);
-     while (n-- > 0) {
-	 if (ptr->f == f) {
-	     SET_I(ptr->addr);
-	     Goto(*I);
-	 }
-	 ptr++;
-     }
-     SET_I((Eterm *) Arg(1));
-     Goto(*I);
- }
-#else
- OpCase(i_select_float_sfI):
- {
-     Uint fpart1;
-     Uint fpart2;
-     int n;
-     struct ValLabel {
-	 Uint fpart1;
-	 Uint fpart2;
-	 BeamInstr* addr;
-     };
-     struct ValLabel* ptr;
-
-     GetArg1(0, tmp_arg1);
-     ASSERT(is_float(tmp_arg1));
-     fpart1 = float_val(tmp_arg1)[1];
-     fpart2 = float_val(tmp_arg1)[2];
-
-     n = Arg(2);
-     ptr = (struct ValLabel *) &Arg(3);
-     while (n-- > 0) {
-	 if (ptr->fpart1 == fpart1 && ptr->fpart2 == fpart2) {
-	     SET_I(ptr->addr);
-	     Goto(*I);
-	 }
-	 ptr++;
-     }
-     SET_I((BeamInstr *) Arg(1));
-     Goto(*I);
- }
-#endif
-
  OpCase(set_tuple_element_sdP): {
      Eterm element;
      Eterm tuple;
-- 
cgit v1.2.3