[PM/AA] Don't bother forward declaring Function and Value, just include

[oota-llvm.git] / test / Transforms / Util / lowerswitch.ll

diff --git a/test/Transforms/Util/lowerswitch.ll b/test/Transforms/Util/lowerswitch.ll
index 06bd4ccd11caba60febb41dd5557c05976183d2c..6e21f916c038d531f42d194070ac98fe504fa3ed 100644 (file)
--- a/test/Transforms/Util/lowerswitch.ll
+++ b/test/Transforms/Util/lowerswitch.ll
@@ -1,9 +1,9 @@
 ; RUN: opt -lowerswitch -S < %s | FileCheck %s
 
 ; Test that we don't crash and have a different basic block for each incoming edge.
-define void @test_lower_switch() {
-; CHECK-LABEL: @test_lower_switch
-; CHECK: %merge = phi i64 [ 1, %BB3 ], [ 0, %NewDefault ], [ 0, %NodeBlock5 ], [ 0, %LeafBlock1 ]
+define void @test0() {
+; CHECK-LABEL: @test0
+; CHECK: %merge = phi i64 [ 1, %BB3 ], [ 0, %NewDefault ], [ 0, %NodeBlock.5 ], [ 0, %LeafBlock.1 ]
 BB1:
   switch i32 undef, label %BB2 [
     i32 3, label %BB2
@@ -20,3 +20,169 @@ BB2:
 BB3:
   br label %BB2
 }
+
+; Test switch cases that are merged into a single case during lowerswitch
+; (take 84 and 85 below) - check that the number of incoming phi values match
+; the number of branches.
+define void @test1() {
+; CHECK-LABEL: @test1
+entry:
+  br label %bb1
+
+bb1:
+  switch i32 undef, label %bb1 [
+    i32 84, label %bb3
+    i32 85, label %bb3
+    i32 86, label %bb2
+    i32 78, label %exit
+    i32 99, label %bb3
+  ]
+
+bb2:
+  br label %bb3
+
+bb3:
+; CHECK-LABEL: bb3
+; CHECK: %tmp = phi i32 [ 1, %NodeBlock ], [ 0, %bb2 ], [ 1, %LeafBlock.3 ]
+  %tmp = phi i32 [ 1, %bb1 ], [ 0, %bb2 ], [ 1, %bb1 ], [ 1, %bb1 ]
+; CHECK-NEXT: %tmp2 = phi i32 [ 2, %NodeBlock ], [ 5, %bb2 ], [ 2, %LeafBlock.3 ]
+  %tmp2 = phi i32 [ 2, %bb1 ], [ 2, %bb1 ], [ 5, %bb2 ], [ 2, %bb1 ]
+  br label %exit
+
+exit:
+  ret void
+}
+
+; Test that we don't crash.
+define void @test2(i32 %mode) {
+; CHECK-LABEL: @test2
+  br i1 undef, label %1, label %._crit_edge
+
+; <label>:1                                       ; preds = %0
+  switch i32 %mode, label %33 [
+    i32 2, label %2
+    i32 3, label %3
+    i32 4, label %4
+    i32 5, label %5
+    i32 6, label %6
+    i32 7, label %7
+    i32 8, label %8
+    i32 9, label %9
+    i32 10, label %10
+    i32 11, label %14
+    i32 12, label %18
+    i32 13, label %22
+    i32 14, label %26
+    i32 15, label %27
+    i32 16, label %34
+    i32 17, label %34
+    i32 18, label %34
+    i32 19, label %34
+    i32 22, label %34
+    i32 20, label %31
+    i32 21, label %32
+  ]
+
+; <label>:2                                       ; preds = %1
+  br label %34
+
+; <label>:3                                       ; preds = %1
+  br label %34
+
+; <label>:4                                       ; preds = %1
+  br label %34
+
+; <label>:5                                       ; preds = %1
+  br label %34
+
+; <label>:6                                       ; preds = %1
+  br label %34
+
+; <label>:7                                       ; preds = %1
+  br label %34
+
+; <label>:8                                       ; preds = %1
+  br label %34
+
+; <label>:9                                       ; preds = %1
+  br label %34
+
+; <label>:10                                      ; preds = %1
+  br i1 undef, label %11, label %12
+
+; <label>:11                                      ; preds = %10
+  br label %13
+
+; <label>:12                                      ; preds = %10
+  br label %13
+
+; <label>:13                                      ; preds = %12, %11
+  br label %34
+
+; <label>:14                                      ; preds = %1
+  br i1 undef, label %15, label %16
+
+; <label>:15                                      ; preds = %14
+  br label %17
+
+; <label>:16                                      ; preds = %14
+  br label %17
+
+; <label>:17                                      ; preds = %16, %15
+  br label %34
+
+; <label>:18                                      ; preds = %1
+  br i1 undef, label %19, label %20
+
+; <label>:19                                      ; preds = %18
+  br label %21
+
+; <label>:20                                      ; preds = %18
+  br label %21
+
+; <label>:21                                      ; preds = %20, %19
+  br label %34
+
+; <label>:22                                      ; preds = %1
+  br i1 undef, label %23, label %24
+
+; <label>:23                                      ; preds = %22
+  br label %25
+
+; <label>:24                                      ; preds = %22
+  br label %25
+
+; <label>:25                                      ; preds = %24, %23
+  br label %34
+
+; <label>:26                                      ; preds = %1
+  br label %34
+
+; <label>:27                                      ; preds = %1
+  br i1 undef, label %28, label %29
+
+; <label>:28                                      ; preds = %27
+  br label %30
+
+; <label>:29                                      ; preds = %27
+  br label %30
+
+; <label>:30                                      ; preds = %29, %28
+  br label %34
+
+; <label>:31                                      ; preds = %1
+  br label %34
+
+; <label>:32                                      ; preds = %1
+  br label %34
+
+; <label>:33                                      ; preds = %1
+  br label %34
+
+; <label>:34                                      ; preds = %33, %32, %31, %30, %26, %25, %21, %17, %13, %9, %8, %7, %6, %5, %4, %3, %2, %1, %1, %1, %1, %1
+  %o.0 = phi float [ undef, %33 ], [ undef, %32 ], [ undef, %31 ], [ undef, %30 ], [ undef, %26 ], [ undef, %25 ], [ undef, %21 ], [ undef, %17 ], [ undef, %13 ], [ undef, %9 ], [ undef, %8 ], [ undef, %7 ], [ undef, %6 ], [ undef, %5 ], [ undef, %4 ], [ undef, %3 ], [ undef, %2 ], [ undef, %1 ], [ undef, %1 ], [ undef, %1 ], [ undef, %1 ], [ undef, %1 ]
+  br label %._crit_edge
+
+._crit_edge:                                      ; preds = %34, %0
+  ret void
+}