From fb92f4bd1dec8ddd6132d9a365fd7be3b8086824 Mon Sep 17 00:00:00 2001
From: Daniel Dunbar <daniel@zuster.org>
Date: Fri, 25 Mar 2011 15:52:51 +0000
Subject: Split single & double comparison routines into separate
 implementation files, for consistency.

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@128282 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/comparesf2.c | 131 -------------------------------------------------------
 1 file changed, 131 deletions(-)
 delete mode 100644 lib/comparesf2.c

(limited to 'lib/comparesf2.c')

diff --git a/lib/comparesf2.c b/lib/comparesf2.c
deleted file mode 100644
index 3f2e358a..00000000
--- a/lib/comparesf2.c
+++ /dev/null
@@ -1,131 +0,0 @@
-//===-- lib/comparesf2.c - Single-precision comparisons -----------*- C -*-===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This file implements the following soft-fp_t comparison routines:
-//
-//   __eqsf2   __gesf2   __unordsf2
-//   __lesf2   __gtsf2
-//   __ltsf2
-//   __nesf2
-//
-// The semantics of the routines grouped in each column are identical, so there
-// is a single implementation for each, and wrappers to provide the other names.
-//
-// The main routines behave as follows:
-//
-//   __lesf2(a,b) returns -1 if a < b
-//                         0 if a == b
-//                         1 if a > b
-//                         1 if either a or b is NaN
-//
-//   __gesf2(a,b) returns -1 if a < b
-//                         0 if a == b
-//                         1 if a > b
-//                        -1 if either a or b is NaN
-//
-//   __unordsf2(a,b) returns 0 if both a and b are numbers
-//                           1 if either a or b is NaN
-//
-// Note that __lesf2( ) and __gesf2( ) are identical except in their handling of
-// NaN values.
-//
-//===----------------------------------------------------------------------===//
-
-#define SINGLE_PRECISION
-#include "fp_lib.h"
-
-enum LE_RESULT {
-    LE_LESS      = -1,
-    LE_EQUAL     =  0,
-    LE_GREATER   =  1,
-    LE_UNORDERED =  1
-};
-
-enum LE_RESULT __lesf2(fp_t a, fp_t b) {
-    
-    const srep_t aInt = toRep(a);
-    const srep_t bInt = toRep(b);
-    const rep_t aAbs = aInt & absMask;
-    const rep_t bAbs = bInt & absMask;
-    
-    // If either a or b is NaN, they are unordered.
-    if (aAbs > infRep || bAbs > infRep) return LE_UNORDERED;
-    
-    // If a and b are both zeros, they are equal.
-    if ((aAbs | bAbs) == 0) return LE_EQUAL;
-    
-    // If at least one of a and b is positive, we get the same result comparing
-    // a and b as signed integers as we would with a fp_ting-point compare.
-    if ((aInt & bInt) >= 0) {
-        if (aInt < bInt) return LE_LESS;
-        else if (aInt == bInt) return LE_EQUAL;
-        else return LE_GREATER;
-    }
-    
-    // Otherwise, both are negative, so we need to flip the sense of the
-    // comparison to get the correct result.  (This assumes a twos- or ones-
-    // complement integer representation; if integers are represented in a
-    // sign-magnitude representation, then this flip is incorrect).
-    else {
-        if (aInt > bInt) return LE_LESS;
-        else if (aInt == bInt) return LE_EQUAL;
-        else return LE_GREATER;
-    }
-}
-
-enum GE_RESULT {
-    GE_LESS      = -1,
-    GE_EQUAL     =  0,
-    GE_GREATER   =  1,
-    GE_UNORDERED = -1   // Note: different from LE_UNORDERED
-};
-
-enum GE_RESULT __gesf2(fp_t a, fp_t b) {
-    
-    const srep_t aInt = toRep(a);
-    const srep_t bInt = toRep(b);
-    const rep_t aAbs = aInt & absMask;
-    const rep_t bAbs = bInt & absMask;
-    
-    if (aAbs > infRep || bAbs > infRep) return GE_UNORDERED;
-    if ((aAbs | bAbs) == 0) return GE_EQUAL;
-    if ((aInt & bInt) >= 0) {
-        if (aInt < bInt) return GE_LESS;
-        else if (aInt == bInt) return GE_EQUAL;
-        else return GE_GREATER;
-    } else {
-        if (aInt > bInt) return GE_LESS;
-        else if (aInt == bInt) return GE_EQUAL;
-        else return GE_GREATER;
-    }
-}
-
-int __unordsf2(fp_t a, fp_t b) {
-    const rep_t aAbs = toRep(a) & absMask;
-    const rep_t bAbs = toRep(b) & absMask;
-    return aAbs > infRep || bAbs > infRep;
-}
-
-// The following are alternative names for the preceeding routines.
-
-enum LE_RESULT __eqsf2(fp_t a, fp_t b) {
-    return __lesf2(a, b);
-}
-
-enum LE_RESULT __ltsf2(fp_t a, fp_t b) {
-    return __lesf2(a, b);
-}
-
-enum LE_RESULT __nesf2(fp_t a, fp_t b) {
-    return __lesf2(a, b);
-}
-
-enum GE_RESULT __gtsf2(fp_t a, fp_t b) {
-    return __gesf2(a, b);
-}
-- 
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