[PATCH] D11466: Correct x86_64 Android fp128 mangled name

[Chih-Hung Hsieh]

chh created this revision.
chh added reviewers: majnemer, echristo.
chh added subscribers: cfe-commits, davidxl, rnk, enh, tberghammer, danalbert, srhines.

These changes are for Android x86_64 targets to be compatible with current Android g++.
    
https://llvm.org/bugs/show_bug.cgi?id=23897
    
* Use 'g' and 'Cg' for "long double" and "long double _Complex"
  mangled type names.


http://reviews.llvm.org/D11466

Files:
  lib/Basic/Targets.cpp
  test/CodeGen/x86-long-double.cpp

Index: test/CodeGen/x86-long-double.cpp
===================================================================
--- /dev/null
+++ test/CodeGen/x86-long-double.cpp
@@ -0,0 +1,22 @@
+// RUN: %clang -target x86_64-linux-android -emit-llvm -O -S -o - %s \
+// RUN:    | FileCheck %s --check-prefix=A64
+// RUN: %clang -target x86_64-linux-gnu -emit-llvm -O -S -o - %s \
+// RUN:    | FileCheck %s --check-prefix=G64
+// RUN: %clang -target powerpc64-linux-gnu -emit-llvm -O -S -o - %s \
+// RUN:    | FileCheck %s --check-prefix=P64
+// RUN: %clang -target i686-linux-android -emit-llvm -O -S -o - %s \
+// RUN:    | FileCheck %s --check-prefix=A32
+// RUN: %clang -target i686-linux-gnu -emit-llvm -O -S -o - %s \
+// RUN:    | FileCheck %s --check-prefix=G32
+// RUN: %clang -target powerpc-linux-gnu -emit-llvm -O -S -o - %s \
+// RUN:    | FileCheck %s --check-prefix=P32
+
+// Check mangled name of long double.
+// Android's gcc and llvm use fp128 for long double.
+void test(long, float, double, long double, long double _Complex) { }
+// A64:  define void @_Z4testlfdgCg(i64, float, double, fp128, { fp128, fp128 }*
+// G64:  define void @_Z4testlfdeCe(i64, float, double, x86_fp80, { x86_fp80, x86_fp80 }*
+// P64:  define void @_Z4testlfdgCg(i64, float, double, ppc_fp128, ppc_fp128 {{.*}}, ppc_fp128
+// A32:  define void @_Z4testlfdeCe(i32, float, double, double, { double, double }*
+// G32:  define void @_Z4testlfdeCe(i32, float, double, x86_fp80, { x86_fp80, x86_fp80 }*
+// P32:  define void @_Z4testlfdgCg(i32, float, double, ppc_fp128, { ppc_fp128, ppc_fp128 }*
Index: lib/Basic/Targets.cpp
===================================================================
--- lib/Basic/Targets.cpp
+++ lib/Basic/Targets.cpp
@@ -7014,6 +7014,10 @@
       : LinuxTargetInfo<X86_64TargetInfo>(Triple) {
     LongDoubleFormat = &llvm::APFloat::IEEEquad;
   }
+
+  bool useFloat128ManglingForLongDouble() const override {
+    return true;
+  }
 };
 } // end anonymous namespace
 


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