Add support for Float16, Float32, Float64 and Float128

Upgrade libgccjit.version

Limit new Floatxx types to master branch only

apply rustfmt

Make new types available only when requested

Make new types available only when requested

Check if Float16 and Float128 are supported by the target platform

Replace Float with Float32 and Double with Float64 if target dependent type is defined

Add support for Float16|32|64|128 in the builder

Fix cargo fmt errors

Update gccjit wrapper

update hash of ligccjit

4 files changed, 90 insertions, 8 deletions

diff --git a/Cargo.lock b/Cargo.lock
index ab2c7ca8a47..2ce9eb081ee 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -79,16 +79,16 @@ dependencies = [
 
 [[package]]
 name = "gccjit"
-version = "1.0.0"
-source = "git+https://github.com/antoyo/gccjit.rs#9f8f67edc006d543b17529a001803ffece48349e"
+version = "2.0.0"
+source = "git+https://github.com/antoyo/gccjit.rs#f1545d7c2c13e42d78eaac8032d49ab8f7d43b6e"
 dependencies = [
  "gccjit_sys",
 ]
 
 [[package]]
 name = "gccjit_sys"
-version = "0.0.1"
-source = "git+https://github.com/antoyo/gccjit.rs#9f8f67edc006d543b17529a001803ffece48349e"
+version = "0.1.0"
+source = "git+https://github.com/antoyo/gccjit.rs#f1545d7c2c13e42d78eaac8032d49ab8f7d43b6e"
 dependencies = [
  "libc",
 ]
diff --git a/libgccjit.version b/libgccjit.version
index 41bec6df5d9..adf9b64c826 100644
--- a/libgccjit.version
+++ b/libgccjit.version
@@ -1 +1 @@
-b6f163f52
+ac1853f579dbfdc53f2c22317e673ae99686eca2
diff --git a/src/builder.rs b/src/builder.rs
index e9c16a0e4a7..30343f2e17b 100644
--- a/src/builder.rs
+++ b/src/builder.rs
@@ -748,6 +748,24 @@ impl<'a, 'gcc, 'tcx> BuilderMethods<'a, 'tcx> for Builder<'a, 'gcc, 'tcx> {
             // FIXME(antoyo): this seems to produce the wrong result.
             return self.context.new_call(self.location, fmodf, &[a, b]);
         }
+
+        #[cfg(feature = "master")]
+        match self.cx.type_kind(a_type) {
+            TypeKind::Half | TypeKind::Float => {
+                let fmodf = self.context.get_builtin_function("fmodf");
+                return self.context.new_call(self.location, fmodf, &[a, b]);
+            }
+            TypeKind::Double => {
+                let fmod = self.context.get_builtin_function("fmod");
+                return self.context.new_call(self.location, fmod, &[a, b]);
+            }
+            TypeKind::FP128 => {
+                let fmodl = self.context.get_builtin_function("fmodl");
+                return self.context.new_call(self.location, fmodl, &[a, b]);
+            }
+            _ => (),
+        }
+
         if let Some(vector_type) = a_type_unqualified.dyncast_vector() {
             assert_eq!(a_type_unqualified, b.get_type().unqualified());
 
diff --git a/src/type_.rs b/src/type_.rs
index d0d3c21f0cf..cc26f306d6d 100644
--- a/src/type_.rs
+++ b/src/type_.rs
@@ -1,4 +1,6 @@
-use gccjit::{RValue, Struct, Type};
+use std::convert::TryInto;
+
+use gccjit::{CType, RValue, Struct, Type};
 use rustc_codegen_ssa::common::TypeKind;
 use rustc_codegen_ssa::traits::{BaseTypeMethods, DerivedTypeMethods, TypeMembershipMethods};
 use rustc_middle::ty::layout::TyAndLayout;
@@ -120,10 +122,28 @@ impl<'gcc, 'tcx> BaseTypeMethods<'tcx> for CodegenCx<'gcc, 'tcx> {
         self.isize_type
     }
 
+    #[cfg(feature = "master")]
+    fn type_f16(&self) -> Type<'gcc> {
+        if self.context.get_target_info().supports_target_dependent_type(CType::Float16) {
+            return self.context.new_c_type(CType::Float16);
+        }
+        unimplemented!("f16")
+    }
+
+    #[cfg(not(feature = "master"))]
     fn type_f16(&self) -> Type<'gcc> {
-        unimplemented!("f16_f128")
+        unimplemented!("f16")
+    }
+
+    #[cfg(feature = "master")]
+    fn type_f32(&self) -> Type<'gcc> {
+        if self.context.get_target_info().supports_target_dependent_type(CType::Float32) {
+            return self.context.new_c_type(CType::Float32);
+        }
+        self.float_type
     }
 
+    #[cfg(not(feature = "master"))]
     fn type_f32(&self) -> Type<'gcc> {
         self.float_type
     }
@@ -132,8 +152,17 @@ impl<'gcc, 'tcx> BaseTypeMethods<'tcx> for CodegenCx<'gcc, 'tcx> {
         self.double_type
     }
 
+    #[cfg(feature = "master")]
+    fn type_f128(&self) -> Type<'gcc> {
+        if self.context.get_target_info().supports_target_dependent_type(CType::Float128) {
+            return self.context.new_c_type(CType::Float128);
+        }
+        unimplemented!("f128")
+    }
+
+    #[cfg(not(feature = "master"))]
     fn type_f128(&self) -> Type<'gcc> {
-        unimplemented!("f16_f128")
+        unimplemented!("f128")
     }
 
     fn type_func(&self, params: &[Type<'gcc>], return_type: Type<'gcc>) -> Type<'gcc> {
@@ -161,6 +190,31 @@ impl<'gcc, 'tcx> BaseTypeMethods<'tcx> for CodegenCx<'gcc, 'tcx> {
         typ
     }
 
+    #[cfg(feature = "master")]
+    fn type_kind(&self, typ: Type<'gcc>) -> TypeKind {
+        if self.is_int_type_or_bool(typ) {
+            TypeKind::Integer
+        } else if typ.is_compatible_with(self.float_type) {
+            TypeKind::Float
+        } else if typ.is_compatible_with(self.double_type) {
+            TypeKind::Double
+        } else if typ.is_vector() {
+            TypeKind::Vector
+        } else if typ.is_floating_point() {
+            match typ.get_size() {
+                2 => TypeKind::Half,
+                4 => TypeKind::Float,
+                8 => TypeKind::Double,
+                16 => TypeKind::FP128,
+                _ => TypeKind::Void,
+            }
+        } else {
+            // TODO(antoyo): support other types.
+            TypeKind::Void
+        }
+    }
+
+    #[cfg(not(feature = "master"))]
     fn type_kind(&self, typ: Type<'gcc>) -> TypeKind {
         if self.is_int_type_or_bool(typ) {
             TypeKind::Integer
@@ -210,6 +264,16 @@ impl<'gcc, 'tcx> BaseTypeMethods<'tcx> for CodegenCx<'gcc, 'tcx> {
         unimplemented!();
     }
 
+    #[cfg(feature = "master")]
+    fn float_width(&self, typ: Type<'gcc>) -> usize {
+        if typ.is_floating_point() {
+            (typ.get_size() * u8::BITS).try_into().unwrap()
+        } else {
+            panic!("Cannot get width of float type {:?}", typ);
+        }
+    }
+
+    #[cfg(not(feature = "master"))]
     fn float_width(&self, typ: Type<'gcc>) -> usize {
         let f32 = self.context.new_type::<f32>();
         let f64 = self.context.new_type::<f64>();