[WIP] test enabling i128 lowering for emscripten

.travis.yml

@@ -155,7 +155,7 @@ matrix:
     - env: IMAGE=dist-x86_64-netbsd DEPLOY=1
       if: branch = auto
     - env: IMAGE=asmjs
-      if: branch = auto
+      if: type = pull_request OR branch = try OR branch = auto
     - env: IMAGE=i686-gnu
       if: branch = auto
     - env: IMAGE=i686-gnu-nopt

src/librustc_back/target/asmjs_unknown_emscripten.rs

@@ -30,6 +30,7 @@ pub fn target() -> Result<Target, String> {
         max_atomic_width: Some(32),
         post_link_args: args,
         target_family: Some("unix".to_string()),
+        i128_lowering: true,
         codegen_backend: "emscripten".to_string(),
         .. Default::default()
     };

src/librustc_back/target/wasm32_unknown_emscripten.rs

@@ -32,6 +32,7 @@ pub fn target() -> Result<Target, String> {
         max_atomic_width: Some(32),
         post_link_args,
         target_family: Some("unix".to_string()),
+        i128_lowering: true,
         codegen_backend: "emscripten".to_string(),
         .. Default::default()
     };

src/test/run-pass/float-int-invalid-const-cast.rs

@@ -8,8 +8,6 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-// ignore-emscripten no i128 support
-
 #![deny(const_err)]
 
 use std::{f32, f64};

src/test/run-pass/i128.rs

@@ -8,8 +8,6 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-// ignore-emscripten i128 doesn't work
-
 // compile-flags: -Z borrowck=compare
 
 #![feature(test)]

src/test/run-pass/intrinsics-integer.rs

@@ -8,8 +8,6 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-// ignore-emscripten no i128 support
-
 #![feature(intrinsics)]
 
 mod rusti {

src/test/run-pass/saturating-float-casts.rs

@@ -16,9 +16,7 @@
 extern crate test;
 
 use std::{f32, f64};
-use std::{u8, i8, u16, i16, u32, i32, u64, i64};
-#[cfg(not(target_os="emscripten"))]
-use std::{u128, i128};
+use std::{u8, i8, u16, i16, u32, i32, u64, i64, u128, i128};
 use test::black_box;
 
 macro_rules! test {
@@ -97,11 +95,8 @@ macro_rules! fptoui_tests {
 pub fn main() {
     common_fptoi_tests!(f* -> i8 i16 i32 i64 u8 u16 u32 u64);
     fptoui_tests!(f* -> u8 u16 u32 u64);
-    // FIXME emscripten does not support i128
-    #[cfg(not(target_os="emscripten"))] {
-        common_fptoi_tests!(f* -> i128 u128);
-        fptoui_tests!(f* -> u128);
-    }
+    common_fptoi_tests!(f* -> i128 u128);
+    fptoui_tests!(f* -> u128);
 
     // The following tests cover edge cases for some integer types.