Commit 4def9c4a9b

@@ -3788,10 +3788,18 @@ fn airBitcast(f: *Function, inst: Air.Inst.Index) !CValue {
     const local = try f.allocLocal(inst_ty, .Mut);
     try writer.writeAll(";\n");
 
+    const operand_lval = if (operand == .constant) blk: {
+        const operand_local = try f.allocLocal(f.air.typeOf(ty_op.operand), .Const);
+        try writer.writeAll(" = ");
+        try f.writeCValue(writer, operand, .Initializer);
+        try writer.writeAll(";\n");
+        break :blk operand_local;
+    } else operand;
+
     try writer.writeAll("memcpy(&");
     try f.writeCValue(writer, local, .Other);
     try writer.writeAll(", &");
-    try f.writeCValue(writer, operand, .Other);
+    try f.writeCValue(writer, operand_lval, .Other);
     try writer.writeAll(", sizeof(");
     try f.renderTypecast(writer, inst_ty);
     try writer.writeAll("));\n");

@@ -798,7 +798,6 @@ test "comptime fixed-width float non-zero divided by zero produces signed Inf" {
     if (builtin.zig_backend == .stage2_x86_64) return error.SkipZigTest; // TODO
     if (builtin.zig_backend == .stage2_arm) return error.SkipZigTest; // TODO
     if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest; // TODO
-    if (builtin.zig_backend == .stage2_c) return error.SkipZigTest; // TODO
 
     inline for (.{ f16, f32, f64, f80, f128 }) |F| {
         const pos = @as(F, 1) / @as(F, 0);
@@ -897,7 +896,6 @@ test "nan negation f80" {
     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_c) return error.SkipZigTest; // TODO
 
     const nan_comptime = comptime math.nan(f80);
     const neg_nan_comptime = -nan_comptime;