diff options
| author |  xleroy <xleroy@fca1b0fc-160b-0410-b1d3-a4f43f01ea2e> | 2014-07-27 07:35:49 +0000 |
|---|---|---|
| committer | xleroy <xleroy@fca1b0fc-160b-0410-b1d3-a4f43f01ea2e> | 2014-07-27 07:35:49 +0000 |
| commit | f4e106d4fc1cce484678b5cdd86ab57d7a43076a (patch) | |
| tree | 3de9bddc63b80fb1b695bbdb8fa5bd6aa893a13a /runtime/arm/i64_stod.S | |
| parent | 04ff02a9f4bc4f766a450e5463729102ee26882e (diff) | |
ARM port: add support for Thumb2. To be tested.
git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2549 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
Diffstat (limited to 'runtime/arm/i64_stod.S')
| -rw-r--r-- | runtime/arm/i64_stod.S | 21 |
1 files changed, 10 insertions, 11 deletions
diff --git a/runtime/arm/i64_stod.S b/runtime/arm/i64_stod.S index 7e5a06f..81e43e2 100644 --- a/runtime/arm/i64_stod.S +++ b/runtime/arm/i64_stod.S @@ -34,24 +34,23 @@ @ Helper functions for 64-bit integer arithmetic. ARM version. - .text +#include "sysdeps.h" @@@ Conversion from signed 64-bit integer to double float - .global __i64_stod +FUNCTION(__i64_stod) __i64_stod: - fmsr s0, r0 - fuitod d0, s0 @ convert low half to double (unsigned) - fmsr s2, r1 - fsitod d1, s2 @ convert high half to double (signed) - fldd d2, .LC1 @ d2 = 2^32 - fmacd d0, d1, d2 @ d0 = d0 + d1 * d2 = double value of int64 + vmov s0, r0 + vcvt.f64.u32 d0, s0 @ convert low half to double (unsigned) + vmov s2, r1 + vcvt.f64.s32 d1, s2 @ convert high half to double (signed) + vldr d2, .LC1 @ d2 = 2^32 + vmla.f64 d0, d1, d2 @ d0 = d0 + d1 * d2 = double value of int64 #ifdef VARIANT_eabi - fmrrd r0, r1, d0 @ return result in r0, r1 + vmov r0, r1, d0 @ return result in r0, r1 #endif bx lr - .type __i64_stod, %function - .size __i64_stod, . - __i64_stod +ENDFUNCTION(__i64_stod) .balign 8 .LC1: .quad 0x41f0000000000000 @ 2^32 in double precision |