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diff --git a/dmd/globals.d b/dmd/globals.d
index 464b8926..1d9befe1 100644
--- a/dmd/globals.d
+++ b/dmd/globals.d
@@ -123,6 +123,7 @@ struct Param
bool is64bit = (size_t.sizeof == 8); // generate 64 bit code; true by default for 64 bit dmd
bool isLP64; // generate code for LP64
bool isLinux; // generate code for linux
+ bool isAndroid; // generate code for Android
bool isOSX; // generate code for Mac OSX
bool isWindows; // generate code for Windows
bool isFreeBSD; // generate code for FreeBSD
diff --git a/dmd/globals.h b/dmd/globals.h
index 24cd4912..df8a71bd 100644
--- a/dmd/globals.h
+++ b/dmd/globals.h
@@ -100,6 +100,7 @@ struct Param
bool is64bit; // generate 64 bit code
bool isLP64; // generate code for LP64
bool isLinux; // generate code for linux
+ bool isAndroid; // generate code for Android
bool isOSX; // generate code for Mac OSX
bool isWindows; // generate code for Windows
bool isFreeBSD; // generate code for FreeBSD
diff --git a/driver/main.cpp b/driver/main.cpp
index 26c61e94..f9ec7f7b 100644
--- a/driver/main.cpp
+++ b/driver/main.cpp
@@ -1023,6 +1023,7 @@ int cppmain(int argc, char **argv) {
llvm::Triple *triple = new llvm::Triple(gTargetMachine->getTargetTriple());
global.params.targetTriple = triple;
global.params.isLinux = triple->isOSLinux();
+ global.params.isAndroid = triple->getEnvironment() == llvm::Triple::Android;
global.params.isOSX = triple->isOSDarwin();
global.params.isWindows = triple->isOSWindows();
global.params.isFreeBSD = triple->isOSFreeBSD();
diff --git a/dmd/dmangle.d b/dmd/dmangle.d
index 9fa8593b..ae29e307 100644
--- a/dmd/dmangle.d
+++ b/dmd/dmangle.d
@@ -911,9 +911,13 @@ public:
buf.writestring(value < CTFloat.zero ? "NINF" : "INF");
else
{
+ version (IN_LLVM) import gen.llvmhelpers;
enum BUFFER_LEN = 36;
char[BUFFER_LEN] buffer;
- const n = CTFloat.sprint(buffer.ptr, 'A', value);
+ // sprintf/printf with hex formatting is broken for certain long
+ // doubles on Android/x64, so use decimal format instead.
+ char fmt = global.params.isAndroid && isArchx86_64() ? 'g' : 'A';
+ const n = CTFloat.sprint(buffer.ptr, fmt, value);
assert(n < BUFFER_LEN);
for (int i = 0; i < n; i++)
{