add cond switch

1 files changed, 26 insertions, 0 deletions

diff --git a/src/llvm.cff b/src/llvm.cff
index b0111fe..81fe056 100644
--- a/src/llvm.cff
+++ b/src/llvm.cff
@@ -954,6 +954,32 @@ fn genstmt(f *Fn, block *Block, st *Stmt) void {
       gen("\tbr label %%ESe%d\n", id);
       gen("ESe%d: ", id);
       nop();
+   
+   case CSwitch *sw;
+      static swid int = {};
+      let id = swid++;
+
+
+      if sw.cs.#len == 0 {
+         gen("\tbr label %%CSx%d\n", id);
+      }
+      foreach (c, i, sw.cs) {
+         let t = llvmbool(f, &c.test);
+         gen("\tbr i1 %v, label %%CST%d.%d, label %%CSF%d.%d\n", t, id, i, id, i);
+         gen("CST%d.%d: ", id, i);
+         genblock(f, c.t);
+         gen("\tbr label %%CSe%d\n", id);
+         gen("CSF%d.%d: ", id, i);
+         if i == sw.cs.#len - 1 {
+            gen("\tbr label %%CSx%d\n", id);
+         }
+      }
+      gen("CSx%d: ", id);
+      genblock(f, sw.f);
+      gen("\tbr label %%CSe%d\n", id);
+      gen("CSe%d: ", id);
+      nop();
+
 
    case else
       assert(#f, "stmt? %d", st.u.#tag);