Commit e2837fd224

@@ -21940,10 +21940,18 @@ fn analyzeMinMax(
         }
     }
 
+    const opt_runtime_idx = runtime_known.findFirstSet();
+
     const comptime_refined_ty: ?Type = if (cur_minmax) |ct_minmax_ref| refined: {
         // Refine the comptime-known result type based on the operation
         const val = (try sema.resolveMaybeUndefVal(ct_minmax_ref)).?;
         const orig_ty = sema.typeOf(ct_minmax_ref);
+
+        if (opt_runtime_idx == null and orig_ty.eql(Type.comptime_int, mod)) {
+            // If all arguments were `comptime_int`, and there are no runtime args, we'll preserve that type
+            break :refined orig_ty;
+        }
+
         const refined_ty = if (orig_ty.zigTypeTag() == .Vector) blk: {
             const elem_ty = orig_ty.childType();
             const len = orig_ty.vectorLen();
@@ -21982,7 +21990,7 @@ fn analyzeMinMax(
         break :refined refined_ty;
     } else null;
 
-    const runtime_idx = runtime_known.findFirstSet() orelse return cur_minmax.?;
+    const runtime_idx = opt_runtime_idx orelse return cur_minmax.?;
     const runtime_src = operand_srcs[runtime_idx];
     try sema.requireRuntimeBlock(block, src, runtime_src);
 

@@ -194,3 +194,20 @@ test "@min/@max notices vector bounds" {
     try expectEqual(@Vector(2, u32){ 140, 300 }, max);
     try expectEqual(@Vector(2, u32), @TypeOf(max));
 }
+
+test "@min/@max on comptime_int" {
+    if (builtin.zig_backend == .stage2_wasm) return error.SkipZigTest; // TODO
+    if (builtin.zig_backend == .stage2_x86_64) return error.SkipZigTest; // TODO
+    if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest; // TODO
+    if (builtin.zig_backend == .stage2_arm) return error.SkipZigTest; // TODO
+    if (builtin.zig_backend == .stage2_sparc64) return error.SkipZigTest; // TODO
+    if (builtin.zig_backend == .stage2_spirv64) return error.SkipZigTest; // TODO
+
+    const min = @min(1, 2, -2, -1);
+    const max = @max(1, 2, -2, -1);
+
+    try expectEqual(comptime_int, @TypeOf(min));
+    try expectEqual(comptime_int, @TypeOf(max));
+    try expectEqual(-2, min);
+    try expectEqual(2, max);
+}