[compiler-rt] r174596 - Implement aeabi_{f,d}cmp*.

[Zonr Chang]

Author: zonr
Date: Thu Feb  7 02:29:47 2013
New Revision: 174596

URL: http://llvm.org/viewvc/llvm-project?rev=174596&view=rev
Log:
Implement aeabi_{f,d}cmp*.

Special thanks to Anton for the review.


Added:
    compiler-rt/trunk/lib/arm/aeabi_dcmp.S
    compiler-rt/trunk/lib/arm/aeabi_fcmp.S
Modified:
    compiler-rt/trunk/lib/comparedf2.c
    compiler-rt/trunk/lib/comparesf2.c

Added: compiler-rt/trunk/lib/arm/aeabi_dcmp.S
URL: http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/lib/arm/aeabi_dcmp.S?rev=174596&view=auto
==============================================================================
--- compiler-rt/trunk/lib/arm/aeabi_dcmp.S (added)
+++ compiler-rt/trunk/lib/arm/aeabi_dcmp.S Thu Feb  7 02:29:47 2013
@@ -0,0 +1,39 @@
+//===-- aeabi_dcmp.S - EABI dcmp* implementation ---------------------------===//
+//
+//                     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.
+//
+//===----------------------------------------------------------------------===//
+
+#include "../assembly.h"
+
+// int __aeabi_dcmp{eq,lt,le,ge,gt}(double a, double b) {
+//   int result = __{eq,lt,le,ge,gt}df2(a, b);
+//   if (result {==,<,<=,>=,>} 0) {
+//     return 1;
+//   } else {
+//     return 0;
+//   }
+// }
+
+#define DEFINE_AEABI_DCMP(cond)                            \
+        .syntax unified                          SEPARATOR \
+        .align 2                                 SEPARATOR \
+DEFINE_COMPILERRT_FUNCTION(__aeabi_dcmp ## cond)           \
+        push      { r4, lr }                     SEPARATOR \
+        bl        SYMBOL_NAME(__ ## cond ## df2) SEPARATOR \
+        cmp       r0, #0                         SEPARATOR \
+        b ## cond 1f                             SEPARATOR \
+        mov       r0, #0                         SEPARATOR \
+        pop       { r4, pc }                     SEPARATOR \
+1:                                               SEPARATOR \
+        mov       r0, #1                         SEPARATOR \
+        pop       { r4, pc }
+
+DEFINE_AEABI_DCMP(eq)
+DEFINE_AEABI_DCMP(lt)
+DEFINE_AEABI_DCMP(le)
+DEFINE_AEABI_DCMP(ge)
+DEFINE_AEABI_DCMP(gt)

Added: compiler-rt/trunk/lib/arm/aeabi_fcmp.S
URL: http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/lib/arm/aeabi_fcmp.S?rev=174596&view=auto
==============================================================================
--- compiler-rt/trunk/lib/arm/aeabi_fcmp.S (added)
+++ compiler-rt/trunk/lib/arm/aeabi_fcmp.S Thu Feb  7 02:29:47 2013
@@ -0,0 +1,39 @@
+//===-- aeabi_fcmp.S - EABI fcmp* implementation ---------------------------===//
+//
+//                     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.
+//
+//===----------------------------------------------------------------------===//
+
+#include "../assembly.h"
+
+// int __aeabi_fcmp{eq,lt,le,ge,gt}(float a, float b) {
+//   int result = __{eq,lt,le,ge,gt}sf2(a, b);
+//   if (result {==,<,<=,>=,>} 0) {
+//     return 1;
+//   } else {
+//     return 0;
+//   }
+// }
+
+#define DEFINE_AEABI_FCMP(cond)                            \
+        .syntax unified                          SEPARATOR \
+        .align 2                                 SEPARATOR \
+DEFINE_COMPILERRT_FUNCTION(__aeabi_fcmp ## cond)           \
+        push      { r4, lr }                     SEPARATOR \
+        bl        SYMBOL_NAME(__ ## cond ## sf2) SEPARATOR \
+        cmp       r0, #0                         SEPARATOR \
+        b ## cond 1f                             SEPARATOR \
+        mov       r0, #0                         SEPARATOR \
+        pop       { r4, pc }                     SEPARATOR \
+1:                                               SEPARATOR \
+        mov       r0, #1                         SEPARATOR \
+        pop       { r4, pc }
+
+DEFINE_AEABI_FCMP(eq)
+DEFINE_AEABI_FCMP(lt)
+DEFINE_AEABI_FCMP(le)
+DEFINE_AEABI_FCMP(ge)
+DEFINE_AEABI_FCMP(gt)

Modified: compiler-rt/trunk/lib/comparedf2.c
URL: http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/lib/comparedf2.c?rev=174596&r1=174595&r2=174596&view=diff
==============================================================================
--- compiler-rt/trunk/lib/comparedf2.c (original)
+++ compiler-rt/trunk/lib/comparedf2.c Thu Feb  7 02:29:47 2013
@@ -106,6 +106,8 @@ enum GE_RESULT __gedf2(fp_t a, fp_t b) {
     }
 }
 
+ARM_EABI_FNALIAS(dcmpun, unorddf2)
+
 int __unorddf2(fp_t a, fp_t b) {
     const rep_t aAbs = toRep(a) & absMask;
     const rep_t bAbs = toRep(b) & absMask;

Modified: compiler-rt/trunk/lib/comparesf2.c
URL: http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/lib/comparesf2.c?rev=174596&r1=174595&r2=174596&view=diff
==============================================================================
--- compiler-rt/trunk/lib/comparesf2.c (original)
+++ compiler-rt/trunk/lib/comparesf2.c Thu Feb  7 02:29:47 2013
@@ -106,6 +106,8 @@ enum GE_RESULT __gesf2(fp_t a, fp_t b) {
     }
 }
 
+ARM_EABI_FNALIAS(fcmpun, unordsf2)
+
 int __unordsf2(fp_t a, fp_t b) {
     const rep_t aAbs = toRep(a) & absMask;
     const rep_t bAbs = toRep(b) & absMask;