Rename Cretonne to Cranelift!

cranelift/filetests/regalloc/basic.clif

@@ -0,0 +1,80 @@
+test regalloc
+
+; We can add more ISAs once they have defined encodings.
+target riscv32
+
+; regex: RX=%x\d+
+
+function %add(i32, i32) {
+ebb0(v1: i32, v2: i32):
+    v3 = iadd v1, v2
+; check: [R#0c,%x5]
+; sameln: iadd
+    return
+}
+
+; Function with a dead argument.
+function %dead_arg(i32, i32) -> i32{
+ebb0(v1: i32, v2: i32):
+; not: regmove
+; check: return v1
+    return v1
+}
+
+; Return a value from a different register.
+function %move1(i32, i32) -> i32 {
+ebb0(v1: i32, v2: i32):
+; not: regmove
+; check: regmove v2, %x11 -> %x10
+; nextln: return v2
+        return v2
+}
+
+; Swap two registers.
+function %swap(i32, i32) -> i32, i32 {
+ebb0(v1: i32, v2: i32):
+; not: regmove
+; check: regmove v2, %x11 -> $(tmp=$RX)
+; nextln: regmove v1, %x10 -> %x11
+; nextln: regmove v2, $tmp -> %x10
+; nextln: return v2, v1
+        return v2, v1
+}
+
+; Return an EBB argument.
+function %retebb(i32, i32) -> i32 {
+ebb0(v1: i32, v2: i32):
+    brnz v1, ebb1(v1)
+    jump ebb1(v2)
+
+ebb1(v10: i32):
+    return v10
+}
+
+; Pass an EBB argument as a function argument.
+function %callebb(i32, i32) -> i32 {
+    fn0 = %foo(i32) -> i32
+
+ebb0(v1: i32, v2: i32):
+    brnz v1, ebb1(v1)
+    jump ebb1(v2)
+
+ebb1(v10: i32):
+    v11 = call fn0(v10)
+    return v11
+}
+
+; Pass an EBB argument as a jump argument.
+function %jumpebb(i32, i32) -> i32 {
+    fn0 = %foo(i32) -> i32
+
+ebb0(v1: i32, v2: i32):
+    brnz v1, ebb1(v1, v2)
+    jump ebb1(v2, v1)
+
+ebb1(v10: i32, v11: i32):
+    jump ebb2(v10, v11)
+
+ebb2(v20: i32, v21: i32):
+    return v21
+}