summaryrefslogtreecommitdiff
path: root/lib/builtins/arm/divdf3vfp.S
diff options
context:
space:
mode:
authorDimitry Andric <dim@FreeBSD.org>2015-01-07 19:55:37 +0000
committerDimitry Andric <dim@FreeBSD.org>2015-01-07 19:55:37 +0000
commitca9211ecdede9bdedb812b2243a4abdb8dacd1b9 (patch)
tree9b19e801150082c33e9152275829a6ce90614b55 /lib/builtins/arm/divdf3vfp.S
parent8ef50bf3d1c287b5013c3168de77a462dfce3495 (diff)
Notes
Diffstat (limited to 'lib/builtins/arm/divdf3vfp.S')
-rw-r--r--lib/builtins/arm/divdf3vfp.S26
1 files changed, 26 insertions, 0 deletions
diff --git a/lib/builtins/arm/divdf3vfp.S b/lib/builtins/arm/divdf3vfp.S
new file mode 100644
index 0000000000000..6eebef167a2cf
--- /dev/null
+++ b/lib/builtins/arm/divdf3vfp.S
@@ -0,0 +1,26 @@
+//===-- divdf3vfp.S - Implement divdf3vfp ---------------------------------===//
+//
+// 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"
+
+//
+// extern double __divdf3vfp(double a, double b);
+//
+// Divides two double precision floating point numbers using the Darwin
+// calling convention where double arguments are passsed in GPR pairs
+//
+ .syntax unified
+ .p2align 2
+DEFINE_COMPILERRT_FUNCTION(__divdf3vfp)
+ vmov d6, r0, r1 // move first param from r0/r1 pair into d6
+ vmov d7, r2, r3 // move second param from r2/r3 pair into d7
+ vdiv.f64 d5, d6, d7
+ vmov r0, r1, d5 // move result back to r0/r1 pair
+ bx lr
+END_COMPILERRT_FUNCTION(__divdf3vfp)