aboutsummaryrefslogtreecommitdiff
path: root/lib/arm/fixsfsivfp.S
diff options
context:
space:
mode:
authorEd Schouten <ed@FreeBSD.org>2010-10-21 19:02:02 +0000
committerEd Schouten <ed@FreeBSD.org>2010-10-21 19:02:02 +0000
commit217b614317dad692116a3a06fe94ea8f61a59edb (patch)
tree4cfe2eee875a959effca0881df14c079103447fa /lib/arm/fixsfsivfp.S
downloadsrc-217b614317dad692116a3a06fe94ea8f61a59edb.tar.gz
src-217b614317dad692116a3a06fe94ea8f61a59edb.zip
Import compiler-rt r117047.vendor/compiler-rt/compiler-rt-r117047
Notes
Notes: svn path=/vendor/compiler-rt/dist/; revision=214152 svn path=/vendor/compiler-rt/compiler-rt-r117047/; revision=214153; tag=vendor/compiler-rt/compiler-rt-r117047
Diffstat (limited to 'lib/arm/fixsfsivfp.S')
-rw-r--r--lib/arm/fixsfsivfp.S24
1 files changed, 24 insertions, 0 deletions
diff --git a/lib/arm/fixsfsivfp.S b/lib/arm/fixsfsivfp.S
new file mode 100644
index 000000000000..ce6f18e1b90c
--- /dev/null
+++ b/lib/arm/fixsfsivfp.S
@@ -0,0 +1,24 @@
+//===-- fixsfsivfp.S - Implement fixsfsivfp -----------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "../assembly.h"
+
+//
+// extern int __fixsfsivfp(float a);
+//
+// Converts single precision float to a 32-bit int rounding towards zero.
+// Uses Darwin calling convention where a single precision parameter is
+// passed in a GPR..
+//
+ .align 2
+DEFINE_COMPILERRT_FUNCTION(__fixsfsivfp)
+ fmsr s15, r0 // load float register from R0
+ ftosizs s15, s15 // convert single to 32-bit int into s15
+ fmrs r0, s15 // move s15 to result register
+ bx lr