Add support for float-to-long in the optimizing compiler.

- Add support for the float-to-long Dex instruction in the
  optimizing compiler.
- Add a Dex PC field to art::HTypeConversion to allow the
  x86 and ARM code generators to produce runtime calls.
- Instruct art::CodeGenerator::RecordPcInfo not to record
  PC information for HTypeConversion instructions.
- Add S0 to the list of ARM FPU parameter registers.
- Have art::x86_64::X86_64Assembler::cvttss2si work with
  64-bit operands.
- Generate x86, x86-64 and ARM (but not ARM64) code for
  float to long HTypeConversion nodes.
- Add related tests to test/422-type-conversion.

Change-Id: I954214f0d537187883f83f7a83a1bb2dd8a21fd4

1 files changed, 2 insertions, 0 deletions

diff --git a/compiler/optimizing/code_generator.h b/compiler/optimizing/code_generator.h
index 7c8f6a2d29..1d42c47d56 100644
--- a/compiler/optimizing/code_generator.h
+++ b/compiler/optimizing/code_generator.h
@@ -37,6 +37,8 @@ static int64_t constexpr k2Pow31EncodingForDouble = INT64_C(0x41E0000000000000);
 
 // Maximum value for a primitive integer.
 static int32_t constexpr kPrimIntMax = 0x7fffffff;
+// Maximum value for a primitive long.
+static int64_t constexpr kPrimLongMax = 0x7fffffffffffffff;
 
 class Assembler;
 class CodeGenerator;