Use more intrinsics on msvc

Author: alexcrichton

src/int/mul.rs

@@ -71,7 +71,7 @@ impl Mulo for i64 {}
 impl Mulo for i128 {}
 
 intrinsics! {
-    #[use_c_shim_if(target_arch = "x86")]
+    #[use_c_shim_if(all(target_arch = "x86", not(target_env = "msvc")))]
     pub extern "C" fn __muldi3(a: u64, b: u64) -> u64 {
         a.mul(b)
     }

src/int/sdiv.rs

@@ -64,7 +64,7 @@ intrinsics! {
         a.div(b)
     }
 
-    #[use_c_shim_if(target_arch = "x86")]
+    #[use_c_shim_if(all(target_arch = "x86", not(target_env = "msvc")))]
     pub extern "C" fn __divdi3(a: i64, b: i64) -> i64 {
         a.div(b)
     }
@@ -79,7 +79,7 @@ intrinsics! {
         a.mod_(b)
     }
 
-    #[use_c_shim_if(target_arch = "x86")]
+    #[use_c_shim_if(all(target_arch = "x86", not(target_env = "msvc")))]
     pub extern "C" fn __moddi3(a: i64, b: i64) -> i64 {
         a.mod_(b)
     }

src/int/shift.rs

@@ -65,7 +65,7 @@ impl Lshr for u64 {}
 impl Lshr for u128 {}
 
 intrinsics! {
-    #[use_c_shim_if(target_arch = "x86")]
+    #[use_c_shim_if(all(target_arch = "x86", not(target_env = "msvc")))]
     pub extern "C" fn __ashldi3(a: u64, b: u32) -> u64 {
         a.ashl(b)
     }
@@ -74,7 +74,7 @@ intrinsics! {
         a.ashl(b)
     }
 
-    #[use_c_shim_if(target_arch = "x86")]
+    #[use_c_shim_if(all(target_arch = "x86", not(target_env = "msvc")))]
     pub extern "C" fn __ashrdi3(a: i64, b: u32) -> i64 {
         a.ashr(b)
     }
@@ -83,7 +83,7 @@ intrinsics! {
         a.ashr(b)
     }
 
-    #[use_c_shim_if(target_arch = "x86")]
+    #[use_c_shim_if(all(target_arch = "x86", not(target_env = "msvc")))]
     pub extern "C" fn __lshrdi3(a: u64, b: u32) -> u64 {
         a.lshr(b)
     }

src/int/udiv.rs

@@ -227,13 +227,13 @@ intrinsics! {
         q
     }
 
-    #[use_c_shim_if(target_arch = "x86")]
+    #[use_c_shim_if(all(target_arch = "x86", not(target_env = "msvc")))]
     /// Returns `n / d`
     pub extern "C" fn __udivdi3(n: u64, d: u64) -> u64 {
         __udivmoddi4(n, d, None)
     }
 
-    #[use_c_shim_if(target_arch = "x86")]
+    #[use_c_shim_if(all(target_arch = "x86", not(target_env = "msvc")))]
     /// Returns `n % d`
     pub extern "C" fn __umoddi3(n: u64, d: u64) -> u64 {
         let mut rem = 0;