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| author | Ed Schouten <ed@FreeBSD.org> | 2010-10-21 19:02:02 +0000 |
|---|---|---|
| committer | Ed Schouten <ed@FreeBSD.org> | 2010-10-21 19:02:02 +0000 |
| commit | 217b614317dad692116a3a06fe94ea8f61a59edb (patch) | |
| tree | 4cfe2eee875a959effca0881df14c079103447fa /lib/arm/floatunssidfvfp.S | |
| download | src-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/floatunssidfvfp.S')
| -rw-r--r-- | lib/arm/floatunssidfvfp.S | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/lib/arm/floatunssidfvfp.S b/lib/arm/floatunssidfvfp.S new file mode 100644 index 000000000000..d1bfe3af5841 --- /dev/null +++ b/lib/arm/floatunssidfvfp.S @@ -0,0 +1,24 @@ +//===-- floatunssidfvfp.S - Implement floatunssidfvfp ---------------------===// +// +// 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 double __floatunssidfvfp(unsigned int a); +// +// Converts a 32-bit int to a double precision float. +// Uses Darwin calling convention where a double precision result is +// return in GPR register pair. +// + .align 2 +DEFINE_COMPILERRT_FUNCTION(__floatunssidfvfp) + fmsr s15, r0 // move int to float register s15 + fuitod d7, s15 // convert 32-bit int in s15 to double in d7 + fmrrd r0, r1, d7 // move d7 to result register pair r0/r1 + bx lr |