[llvm] r237324 - [CodeGen] Use standard -not gnueabi- naming for f16 libcalls on Darwin.

[Ahmed Bougacha]

Author: ab
Date: Wed May 13 20:00:51 2015
New Revision: 237324

URL: http://llvm.org/viewvc/llvm-project?rev=237324&view=rev
Log:
[CodeGen] Use standard -not gnueabi- naming for f16 libcalls on Darwin.

Other targets probably should as well.  Since r237161, compiler-rt has
both, but I don't see why anything other than gnueabi would use a
gnueabi naming scheme.

Modified:
    llvm/trunk/lib/CodeGen/TargetLoweringBase.cpp
    llvm/trunk/test/CodeGen/ARM/half.ll

Modified: llvm/trunk/lib/CodeGen/TargetLoweringBase.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/TargetLoweringBase.cpp?rev=237324&r1=237323&r2=237324&view=diff
==============================================================================
--- llvm/trunk/lib/CodeGen/TargetLoweringBase.cpp (original)
+++ llvm/trunk/lib/CodeGen/TargetLoweringBase.cpp Wed May 13 20:00:51 2015
@@ -420,6 +420,14 @@ static void InitLibcallNames(const char
     // These are generally not available.
     Names[RTLIB::STACKPROTECTOR_CHECK_FAIL] = nullptr;
   }
+
+  // For f16/f32 conversions, Darwin uses the standard naming scheme, instead
+  // of the gnueabi-style __gnu_*_ieee.
+  // FIXME: What about other targets?
+  if (TT.isOSDarwin()) {
+    Names[RTLIB::FPEXT_F16_F32] = "__extendhfsf2";
+    Names[RTLIB::FPROUND_F32_F16] = "__truncsfhf2";
+  }
 }
 
 /// InitLibcallCallingConvs - Set default libcall CallingConvs.

Modified: llvm/trunk/test/CodeGen/ARM/half.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/ARM/half.ll?rev=237324&r1=237323&r2=237324&view=diff
==============================================================================
--- llvm/trunk/test/CodeGen/ARM/half.ll (original)
+++ llvm/trunk/test/CodeGen/ARM/half.ll Wed May 13 20:00:51 2015
@@ -30,7 +30,7 @@ define void @test_bitcast_to_half(half*
 define float @test_extend32(half* %addr) {
 ; CHECK-LABEL: test_extend32:
 
-; CHECK-OLD: b.w ___gnu_h2f_ieee
+; CHECK-OLD: b.w ___extendhfsf2
 ; CHECK-F16: vcvtb.f32.f16
 ; CHECK-V8: vcvtb.f32.f16
   %val16 = load half, half* %addr
@@ -41,7 +41,7 @@ define float @test_extend32(half* %addr)
 define double @test_extend64(half* %addr) {
 ; CHECK-LABEL: test_extend64:
 
-; CHECK-OLD: blx ___gnu_h2f_ieee
+; CHECK-OLD: blx ___extendhfsf2
 ; CHECK-OLD: vcvt.f64.f32
 ; CHECK-F16: vcvtb.f32.f16
 ; CHECK-F16: vcvt.f64.f32
@@ -54,7 +54,7 @@ define double @test_extend64(half* %addr
 define void @test_trunc32(float %in, half* %addr) {
 ; CHECK-LABEL: test_trunc32:
 
-; CHECK-OLD: blx ___gnu_f2h_ieee
+; CHECK-OLD: blx ___truncsfhf2
 ; CHECK-F16: vcvtb.f16.f32
 ; CHECK-V8: vcvtb.f16.f32
   %val16 = fptrunc float %in to half