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-rw-r--r--lib/builtins/arm/subsf3vfp.S6
1 files changed, 5 insertions, 1 deletions
diff --git a/lib/builtins/arm/subsf3vfp.S b/lib/builtins/arm/subsf3vfp.S
index 11fe386cd..3e83ea265 100644
--- a/lib/builtins/arm/subsf3vfp.S
+++ b/lib/builtins/arm/subsf3vfp.S
@@ -12,17 +12,21 @@
//
// extern float __subsf3vfp(float a, float b);
//
-// Returns the difference between two single precision floating point numbers
+// Returns the difference between two single precision floating point numbers
// using the Darwin calling convention where single arguments are passsed
// like 32-bit ints.
//
.syntax unified
.p2align 2
DEFINE_COMPILERRT_FUNCTION(__subsf3vfp)
+#if defined(COMPILER_RT_ARMHF_TARGET)
+ vsub.f32 s0, s0, s1
+#else
vmov s14, r0 // move first param from r0 into float register
vmov s15, r1 // move second param from r1 into float register
vsub.f32 s14, s14, s15
vmov r0, s14 // move result back to r0
+#endif
bx lr
END_COMPILERRT_FUNCTION(__subsf3vfp)