Emit intrinsic lazily

Author: pongad

src/librustc/middle/trans/base.rs

@@ -977,7 +977,7 @@ pub fn call_memcpy(cx: &Block, dst: ValueRef, src: ValueRef, n_bytes: ValueRef,
         X86 | Arm | Mips => "llvm.memcpy.p0i8.p0i8.i32",
         X86_64 => "llvm.memcpy.p0i8.p0i8.i64"
     };
-    let memcpy = ccx.intrinsics.get_copy(&key);
+    let memcpy = ccx.get_intrinsic(&key);
     let src_ptr = PointerCast(cx, src, Type::i8p(ccx));
     let dst_ptr = PointerCast(cx, dst, Type::i8p(ccx));
     let size = IntCast(cx, n_bytes, ccx.int_type);
@@ -1022,7 +1022,7 @@ fn memzero(b: &Builder, llptr: ValueRef, ty: Type) {
         X86_64 => "llvm.memset.p0i8.i64"
     };
 
-    let llintrinsicfn = ccx.intrinsics.get_copy(&intrinsic_key);
+    let llintrinsicfn = ccx.get_intrinsic(&intrinsic_key);
     let llptr = b.pointercast(llptr, Type::i8(ccx).ptr_to());
     let llzeroval = C_u8(ccx, 0);
     let size = machine::llsize_of(ccx, ty);
@@ -2043,168 +2043,6 @@ pub fn p2i(ccx: &CrateContext, v: ValueRef) -> ValueRef {
     }
 }
 
-
-pub fn declare_intrinsics(ccx: &mut CrateContext) {
-    macro_rules! ifn (
-        ($name:expr fn() -> $ret:expr) => ({
-            let name = $name;
-            // HACK(eddyb) dummy output type, shouln't affect anything.
-            let f = decl_cdecl_fn(ccx.llmod, name, Type::func([], &$ret), ty::mk_nil());
-            ccx.intrinsics.insert(name, f);
-        });
-        ($name:expr fn($($arg:expr),*) -> $ret:expr) => ({
-            let name = $name;
-            // HACK(eddyb) dummy output type, shouln't affect anything.
-            let f = decl_cdecl_fn(ccx.llmod, name,
-                                  Type::func([$($arg),*], &$ret), ty::mk_nil());
-            ccx.intrinsics.insert(name, f);
-        })
-    )
-    macro_rules! mk_struct (
-        ($($field_ty:expr),*) => (Type::struct_(ccx, [$($field_ty),*], false))
-    )
-
-    let i8p = Type::i8p(ccx);
-    let void = Type::void(ccx);
-    let i1 = Type::i1(ccx);
-    let t_i8 = Type::i8(ccx);
-    let t_i16 = Type::i16(ccx);
-    let t_i32 = Type::i32(ccx);
-    let t_i64 = Type::i64(ccx);
-    let t_f32 = Type::f32(ccx);
-    let t_f64 = Type::f64(ccx);
-
-    ifn!("llvm.memcpy.p0i8.p0i8.i32" fn(i8p, i8p, t_i32, t_i32, i1) -> void);
-    ifn!("llvm.memcpy.p0i8.p0i8.i64" fn(i8p, i8p, t_i64, t_i32, i1) -> void);
-    ifn!("llvm.memmove.p0i8.p0i8.i32" fn(i8p, i8p, t_i32, t_i32, i1) -> void);
-    ifn!("llvm.memmove.p0i8.p0i8.i64" fn(i8p, i8p, t_i64, t_i32, i1) -> void);
-    ifn!("llvm.memset.p0i8.i32" fn(i8p, t_i8, t_i32, t_i32, i1) -> void);
-    ifn!("llvm.memset.p0i8.i64" fn(i8p, t_i8, t_i64, t_i32, i1) -> void);
-
-    ifn!("llvm.trap" fn() -> void);
-    ifn!("llvm.debugtrap" fn() -> void);
-    ifn!("llvm.frameaddress" fn(t_i32) -> i8p);
-
-    ifn!("llvm.powi.f32" fn(t_f32, t_i32) -> t_f32);
-    ifn!("llvm.powi.f64" fn(t_f64, t_i32) -> t_f64);
-    ifn!("llvm.pow.f32" fn(t_f32, t_f32) -> t_f32);
-    ifn!("llvm.pow.f64" fn(t_f64, t_f64) -> t_f64);
-
-    ifn!("llvm.sqrt.f32" fn(t_f32) -> t_f32);
-    ifn!("llvm.sqrt.f64" fn(t_f64) -> t_f64);
-    ifn!("llvm.sin.f32" fn(t_f32) -> t_f32);
-    ifn!("llvm.sin.f64" fn(t_f64) -> t_f64);
-    ifn!("llvm.cos.f32" fn(t_f32) -> t_f32);
-    ifn!("llvm.cos.f64" fn(t_f64) -> t_f64);
-    ifn!("llvm.exp.f32" fn(t_f32) -> t_f32);
-    ifn!("llvm.exp.f64" fn(t_f64) -> t_f64);
-    ifn!("llvm.exp2.f32" fn(t_f32) -> t_f32);
-    ifn!("llvm.exp2.f64" fn(t_f64) -> t_f64);
-    ifn!("llvm.log.f32" fn(t_f32) -> t_f32);
-    ifn!("llvm.log.f64" fn(t_f64) -> t_f64);
-    ifn!("llvm.log10.f32" fn(t_f32) -> t_f32);
-    ifn!("llvm.log10.f64" fn(t_f64) -> t_f64);
-    ifn!("llvm.log2.f32" fn(t_f32) -> t_f32);
-    ifn!("llvm.log2.f64" fn(t_f64) -> t_f64);
-
-    ifn!("llvm.fma.f32" fn(t_f32, t_f32, t_f32) -> t_f32);
-    ifn!("llvm.fma.f64" fn(t_f64, t_f64, t_f64) -> t_f64);
-
-    ifn!("llvm.fabs.f32" fn(t_f32) -> t_f32);
-    ifn!("llvm.fabs.f64" fn(t_f64) -> t_f64);
-
-    ifn!("llvm.floor.f32" fn(t_f32) -> t_f32);
-    ifn!("llvm.floor.f64" fn(t_f64) -> t_f64);
-    ifn!("llvm.ceil.f32" fn(t_f32) -> t_f32);
-    ifn!("llvm.ceil.f64" fn(t_f64) -> t_f64);
-    ifn!("llvm.trunc.f32" fn(t_f32) -> t_f32);
-    ifn!("llvm.trunc.f64" fn(t_f64) -> t_f64);
-
-    ifn!("llvm.rint.f32" fn(t_f32) -> t_f32);
-    ifn!("llvm.rint.f64" fn(t_f64) -> t_f64);
-    ifn!("llvm.nearbyint.f32" fn(t_f32) -> t_f32);
-    ifn!("llvm.nearbyint.f64" fn(t_f64) -> t_f64);
-
-    ifn!("llvm.ctpop.i8" fn(t_i8) -> t_i8);
-    ifn!("llvm.ctpop.i16" fn(t_i16) -> t_i16);
-    ifn!("llvm.ctpop.i32" fn(t_i32) -> t_i32);
-    ifn!("llvm.ctpop.i64" fn(t_i64) -> t_i64);
-
-    ifn!("llvm.ctlz.i8" fn(t_i8 , i1) -> t_i8);
-    ifn!("llvm.ctlz.i16" fn(t_i16, i1) -> t_i16);
-    ifn!("llvm.ctlz.i32" fn(t_i32, i1) -> t_i32);
-    ifn!("llvm.ctlz.i64" fn(t_i64, i1) -> t_i64);
-
-    ifn!("llvm.cttz.i8" fn(t_i8 , i1) -> t_i8);
-    ifn!("llvm.cttz.i16" fn(t_i16, i1) -> t_i16);
-    ifn!("llvm.cttz.i32" fn(t_i32, i1) -> t_i32);
-    ifn!("llvm.cttz.i64" fn(t_i64, i1) -> t_i64);
-
-    ifn!("llvm.bswap.i16" fn(t_i16) -> t_i16);
-    ifn!("llvm.bswap.i32" fn(t_i32) -> t_i32);
-    ifn!("llvm.bswap.i64" fn(t_i64) -> t_i64);
-
-    ifn!("llvm.sadd.with.overflow.i8" fn(t_i8, t_i8) -> mk_struct!{t_i8, i1});
-    ifn!("llvm.sadd.with.overflow.i16" fn(t_i16, t_i16) -> mk_struct!{t_i16, i1});
-    ifn!("llvm.sadd.with.overflow.i32" fn(t_i32, t_i32) -> mk_struct!{t_i32, i1});
-    ifn!("llvm.sadd.with.overflow.i64" fn(t_i64, t_i64) -> mk_struct!{t_i64, i1});
-
-    ifn!("llvm.uadd.with.overflow.i8" fn(t_i8, t_i8) -> mk_struct!{t_i8, i1});
-    ifn!("llvm.uadd.with.overflow.i16" fn(t_i16, t_i16) -> mk_struct!{t_i16, i1});
-    ifn!("llvm.uadd.with.overflow.i32" fn(t_i32, t_i32) -> mk_struct!{t_i32, i1});
-    ifn!("llvm.uadd.with.overflow.i64" fn(t_i64, t_i64) -> mk_struct!{t_i64, i1});
-
-    ifn!("llvm.ssub.with.overflow.i8" fn(t_i8, t_i8) -> mk_struct!{t_i8, i1});
-    ifn!("llvm.ssub.with.overflow.i16" fn(t_i16, t_i16) -> mk_struct!{t_i16, i1});
-    ifn!("llvm.ssub.with.overflow.i32" fn(t_i32, t_i32) -> mk_struct!{t_i32, i1});
-    ifn!("llvm.ssub.with.overflow.i64" fn(t_i64, t_i64) -> mk_struct!{t_i64, i1});
-
-    ifn!("llvm.usub.with.overflow.i8" fn(t_i8, t_i8) -> mk_struct!{t_i8, i1});
-    ifn!("llvm.usub.with.overflow.i16" fn(t_i16, t_i16) -> mk_struct!{t_i16, i1});
-    ifn!("llvm.usub.with.overflow.i32" fn(t_i32, t_i32) -> mk_struct!{t_i32, i1});
-    ifn!("llvm.usub.with.overflow.i64" fn(t_i64, t_i64) -> mk_struct!{t_i64, i1});
-
-    ifn!("llvm.smul.with.overflow.i8" fn(t_i8, t_i8) -> mk_struct!{t_i8, i1});
-    ifn!("llvm.smul.with.overflow.i16" fn(t_i16, t_i16) -> mk_struct!{t_i16, i1});
-    ifn!("llvm.smul.with.overflow.i32" fn(t_i32, t_i32) -> mk_struct!{t_i32, i1});
-    ifn!("llvm.smul.with.overflow.i64" fn(t_i64, t_i64) -> mk_struct!{t_i64, i1});
-
-    ifn!("llvm.umul.with.overflow.i8" fn(t_i8, t_i8) -> mk_struct!{t_i8, i1});
-    ifn!("llvm.umul.with.overflow.i16" fn(t_i16, t_i16) -> mk_struct!{t_i16, i1});
-    ifn!("llvm.umul.with.overflow.i32" fn(t_i32, t_i32) -> mk_struct!{t_i32, i1});
-    ifn!("llvm.umul.with.overflow.i64" fn(t_i64, t_i64) -> mk_struct!{t_i64, i1});
-
-    ifn!("llvm.expect.i1" fn(i1, i1) -> i1);
-
-    // Some intrinsics were introduced in later versions of LLVM, but they have
-    // fallbacks in libc or libm and such. Currently, all of these intrinsics
-    // were introduced in LLVM 3.4, so we case on that.
-    macro_rules! compatible_ifn (
-        ($name:expr, $cname:ident ($($arg:expr),*) -> $ret:expr) => ({
-            let name = $name;
-            if unsafe { llvm::LLVMVersionMinor() >= 4 } {
-                ifn!(name fn($($arg),*) -> $ret);
-            } else {
-                let f = decl_cdecl_fn(ccx.llmod, stringify!($cname),
-                                      Type::func([$($arg),*], &$ret),
-                                      ty::mk_nil());
-                ccx.intrinsics.insert(name, f);
-            }
-        })
-    )
-
-    compatible_ifn!("llvm.copysign.f32", copysignf(t_f32, t_f32) -> t_f32);
-    compatible_ifn!("llvm.copysign.f64", copysign(t_f64, t_f64) -> t_f64);
-    compatible_ifn!("llvm.round.f32", roundf(t_f32) -> t_f32);
-    compatible_ifn!("llvm.round.f64", round(t_f64) -> t_f64);
-
-
-    if ccx.sess().opts.debuginfo != NoDebugInfo {
-        ifn!("llvm.dbg.declare" fn(Type::metadata(ccx), Type::metadata(ccx)) -> void);
-        ifn!("llvm.dbg.value" fn(Type::metadata(ccx), t_i64, Type::metadata(ccx)) -> void);
-    }
-}
-
 pub fn crate_ctxt_to_encode_parms<'r>(cx: &'r CrateContext, ie: encoder::EncodeInlinedItem<'r>)
     -> encoder::EncodeParams<'r> {