olista01 added a subscriber: olista01.
================
Comment at: lib/Basic/Targets.cpp:4685-4686
@@ +4684,4 @@
+ // ACLE 6.5.2 Half-precision (16-bit) floating-point format
+ if (HW_FP & HW_FP_HP)
+ Builder.defineMacro("__ARM_FP16_FORMAT_IEEE", "1");
+
----------------
The __fp16 type is accepted even if it is not supported by the hardware
(library calls are emitted instead), so this can be defined unconditionally.
I'm currently working on D12148, which also sets this and _ARM_FP16_ARGS.
http://reviews.llvm.org/D12244
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