Rename Cretonne to Cranelift!

cranelift/filetests/regalloc/global-constraints.clif

@@ -0,0 +1,27 @@
+test regalloc
+target i686
+
+; This test covers the troubles when values with global live ranges are defined
+; by instructions with constrained register classes.
+;
+; The icmp_imm instrutions write their b1 result to the ABCD register class on
+; 32-bit x86. So if we define 5 live values, they can't all fit.
+function %global_constraints(i32) {
+ebb0(v0: i32):
+    v1 = icmp_imm eq v0, 1
+    v2 = icmp_imm ugt v0, 2
+    v3 = icmp_imm sle v0, 3
+    v4 = icmp_imm ne v0, 4
+    v5 = icmp_imm sge v0, 5
+    brnz v5, ebb1
+    return
+
+ebb1:
+    ; Make sure v1-v5 are live in.
+    v10 = band v1, v2
+    v11 = bor v3, v4
+    v12 = bor v10, v11
+    v13 = bor v12, v5
+    trapnz v13, user0
+    return
+}