From: Tim Northover <tnorthover@apple.com>
Date: Tue, 29 Jul 2014 09:56:45 +0000 (+0000)
Subject: ARM: add __aeabi_d2h for truncation on AEABI systems
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=30ef915bb4fdcc815c673819563bf0e487367557;p=llvm

ARM: add __aeabi_d2h for truncation on AEABI systems

ARM does actually define the name for this conversion, so we should use it on
"-eabi" platforms.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@214176 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Target/ARM/ARMISelLowering.cpp b/lib/Target/ARM/ARMISelLowering.cpp
index 49ed02277e2..f10394a66d8 100644
--- a/lib/Target/ARM/ARMISelLowering.cpp
+++ b/lib/Target/ARM/ARMISelLowering.cpp
@@ -312,6 +312,7 @@ ARMTargetLowering::ARMTargetLowering(TargetMachine &TM)
       // Conversions between floating types.
       // RTABI chapter 4.1.2, Table 7
       { RTLIB::FPROUND_F64_F32, "__aeabi_d2f", CallingConv::ARM_AAPCS, ISD::SETCC_INVALID },
+      { RTLIB::FPROUND_F64_F16, "__aeabi_d2h", CallingConv::ARM_AAPCS, ISD::SETCC_INVALID },
       { RTLIB::FPEXT_F32_F64,   "__aeabi_f2d", CallingConv::ARM_AAPCS, ISD::SETCC_INVALID },
 
       // Integer to floating-point conversions.
diff --git a/test/CodeGen/ARM/fp16.ll b/test/CodeGen/ARM/fp16.ll
index 501c2ba40ff..93cf2f4b1aa 100644
--- a/test/CodeGen/ARM/fp16.ll
+++ b/test/CodeGen/ARM/fp16.ll
@@ -73,7 +73,7 @@ define arm_aapcs_vfpcc i16 @test_to_fp16(double %in) {
 ; CHECK-ARMV8: vcvtb.f16.f64 [[TMP:s[0-9]+]], d0
 ; CHECK-ARMV8: vmov r0, [[TMP]]
 
-; CHECK-SOFTFLOAT: bl __truncdfhf2
+; CHECK-SOFTFLOAT: bl __aeabi_d2h
   ret i16 %val
 }