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authorEvan Cheng <evan.cheng@apple.com>2009-07-29 02:18:14 +0000
committerEvan Cheng <evan.cheng@apple.com>2009-07-29 02:18:14 +0000
commit5657c01949dca6c012ac60d242d1a8d2ffdf5603 (patch)
treeecb9f93864eac57af9d445e4e0cb683472c5ab7f /test/CodeGen/Thumb2/thumb2-tbb.ll
parent794bfed25dd6a4282af204c8b4bfa76d7d4221d8 (diff)
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Optimize Thumb2 jumptable to use tbb / tbh when all the offsets fit in byte / halfword.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77422 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/Thumb2/thumb2-tbb.ll')
-rw-r--r--test/CodeGen/Thumb2/thumb2-tbb.ll56
1 files changed, 56 insertions, 0 deletions
diff --git a/test/CodeGen/Thumb2/thumb2-tbb.ll b/test/CodeGen/Thumb2/thumb2-tbb.ll
new file mode 100644
index 0000000000..c0347c7847
--- /dev/null
+++ b/test/CodeGen/Thumb2/thumb2-tbb.ll
@@ -0,0 +1,56 @@
+; RUN: llvm-as < %s | llc -mtriple=thumbv7-apple-darwin | FileCheck %s
+; RUN: llvm-as < %s | llc -mtriple=thumbv7-apple-darwin -relocation-model=pic | FileCheck %s
+
+define void @bar(i32 %n.u) {
+entry:
+; CHECK: bar:
+; CHECK: tbb
+
+ switch i32 %n.u, label %bb12 [i32 1, label %bb i32 2, label %bb6 i32 4, label %bb7 i32 5, label %bb8 i32 6, label %bb10 i32 7, label %bb1 i32 8, label %bb3 i32 9, label %bb4 i32 10, label %bb9 i32 11, label %bb2 i32 12, label %bb5 i32 13, label %bb11 ]
+bb:
+ tail call void(...)* @foo1()
+ ret void
+bb1:
+ tail call void(...)* @foo2()
+ ret void
+bb2:
+ tail call void(...)* @foo6()
+ ret void
+bb3:
+ tail call void(...)* @foo3()
+ ret void
+bb4:
+ tail call void(...)* @foo4()
+ ret void
+bb5:
+ tail call void(...)* @foo5()
+ ret void
+bb6:
+ tail call void(...)* @foo1()
+ ret void
+bb7:
+ tail call void(...)* @foo2()
+ ret void
+bb8:
+ tail call void(...)* @foo6()
+ ret void
+bb9:
+ tail call void(...)* @foo3()
+ ret void
+bb10:
+ tail call void(...)* @foo4()
+ ret void
+bb11:
+ tail call void(...)* @foo5()
+ ret void
+bb12:
+ tail call void(...)* @foo6()
+ ret void
+}
+
+declare void @foo1(...)
+declare void @foo2(...)
+declare void @foo6(...)
+declare void @foo3(...)
+declare void @foo4(...)
+declare void @foo5(...)