nixify

test/fold1.ssa

@@ -0,0 +1,47 @@
+export
+function w $f1() {
+@start
+	%x =w sar 2147483648, 31
+	ret %x
+}
+
+export
+function w $f2() {
+@start
+	%x =w div 4294967040, 8  # -256 / 8
+	ret %x
+}
+
+export
+function w $f3() {
+@start
+	%x =w rem 4294967284, 7  # -12 % 7
+	ret %x
+}
+
+export
+function w $f4() {
+@start
+	%x =w shr 4294967296, 1  # 2^32 >> 1
+	ret %x
+}
+
+export
+function w $f5() {
+@start
+	%x =w udiv 1, 4294967297  # 1 / (2^32 + 1)
+	ret %x
+}
+
+export
+function w $f6() {
+@start
+	%x =w urem 4294967296, 7  # 2^32 % 7
+	ret %x
+}
+
+# >>> driver
+# extern int f1(), f2(), f3(), f4(), f5(), f6();
+# int main() { return !(f1() == -1 && f2() == -32 && f3() == -5 &&
+#                       f4() == 0 && f5() == 1 && f6() == 0); }
+# <<<