Rollup merge of #23704 - hirschenberger:simd-intdiv-ice, r=huonw

Fixes #23339

Author: Manishearth

src/librustc_trans/trans/base.rs

@@ -41,7 +41,7 @@ use middle::cfg;
 use middle::lang_items::{LangItem, ExchangeMallocFnLangItem, StartFnLangItem};
 use middle::weak_lang_items;
 use middle::subst::{Subst, Substs};
-use middle::ty::{self, Ty, ClosureTyper};
+use middle::ty::{self, Ty, ClosureTyper, type_is_simd, simd_size};
 use session::config::{self, NoDebugInfo};
 use session::Session;
 use trans::_match;
@@ -52,7 +52,7 @@ use trans::callee;
 use trans::cleanup::CleanupMethods;
 use trans::cleanup;
 use trans::closure;
-use trans::common::{Block, C_bool, C_bytes_in_context, C_i32, C_integral};
+use trans::common::{Block, C_bool, C_bytes_in_context, C_i32, C_int, C_integral};
 use trans::common::{C_null, C_struct_in_context, C_u64, C_u8, C_undef};
 use trans::common::{CrateContext, ExternMap, FunctionContext};
 use trans::common::{Result, NodeIdAndSpan};
@@ -824,6 +824,15 @@ pub fn fail_if_zero_or_overflows<'blk, 'tcx>(
             let zero = C_integral(Type::uint_from_ty(cx.ccx(), t), 0, false);
             (ICmp(cx, llvm::IntEQ, rhs, zero, debug_loc), false)
         }
+        ty::ty_struct(_, _) if type_is_simd(cx.tcx(), rhs_t) => {
+            let mut res = C_bool(cx.ccx(), false);
+            for i in 0 .. simd_size(cx.tcx(), rhs_t) {
+                res = Or(cx, res,
+                         IsNull(cx,
+                                ExtractElement(cx, rhs, C_int(cx.ccx(), i as i64))), debug_loc);
+            }
+            (res, false)
+        }
         _ => {
             cx.sess().bug(&format!("fail-if-zero on unexpected type: {}",
                                   ty_to_string(cx.tcx(), rhs_t)));

src/test/run-pass/simd-binop.rs

@@ -32,6 +32,7 @@ pub fn main() {
     assert!(eq_u32x4(u32x4(1, 2, 3, 4) + u32x4(4, 3, 2, 1), u32x4(5, 5, 5, 5)));
     assert!(eq_u32x4(u32x4(4, 5, 6, 7) - u32x4(4, 3, 2, 1), u32x4(0, 2, 4, 6)));
     assert!(eq_u32x4(u32x4(1, 2, 3, 4) * u32x4(4, 3, 2, 1), u32x4(4, 6, 6, 4)));
+    assert!(eq_u32x4(u32x4(1, 2, 3, 4) / u32x4(4, 3, 2, 1), u32x4(0, 0, 1, 4)));
     assert!(eq_u32x4(u32x4(1, 2, 3, 4) & u32x4(4, 3, 2, 1), u32x4(0, 2, 2, 0)));
     assert!(eq_u32x4(u32x4(1, 2, 3, 4) | u32x4(4, 3, 2, 1), u32x4(5, 3, 3, 5)));
     assert!(eq_u32x4(u32x4(1, 2, 3, 4) ^ u32x4(4, 3, 2, 1), u32x4(5, 1, 1, 5)));
@@ -41,6 +42,7 @@ pub fn main() {
     assert!(eq_i32x4(i32x4(1, 2, 3, 4) + i32x4(4, 3, 2, 1), i32x4(5, 5, 5, 5)));
     assert!(eq_i32x4(i32x4(1, 2, 3, 4) - i32x4(4, 3, 2, 1), i32x4(-3, -1, 1, 3)));
     assert!(eq_i32x4(i32x4(1, 2, 3, 4) * i32x4(4, 3, 2, 1), i32x4(4, 6, 6, 4)));
+    assert!(eq_i32x4(i32x4(1, 2, 3, 4) / i32x4(4, 3, 2, 1), i32x4(0, 0, 1, 4)));
     assert!(eq_i32x4(i32x4(1, 2, 3, 4) & i32x4(4, 3, 2, 1), i32x4(0, 2, 2, 0)));
     assert!(eq_i32x4(i32x4(1, 2, 3, 4) | i32x4(4, 3, 2, 1), i32x4(5, 3, 3, 5)));
     assert!(eq_i32x4(i32x4(1, 2, 3, 4) ^ i32x4(4, 3, 2, 1), i32x4(5, 1, 1, 5)));