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author | Shih-wei Liao <sliao@google.com> | 2010-04-28 01:47:00 -0700 |
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committer | Shih-wei Liao <sliao@google.com> | 2010-04-28 01:47:00 -0700 |
commit | 7abe37e4aee38cc79d91dd069a37d7e91d5bef53 (patch) | |
tree | c13b26fc3d8909240f981988535c0b82dd9bf37c /test/CodeGen/X86/unreachable-loop-sinking.ll | |
parent | 6037a7c3c97b651dd70e48ebe5453134713971ed (diff) | |
download | external_llvm-7abe37e4aee38cc79d91dd069a37d7e91d5bef53.zip external_llvm-7abe37e4aee38cc79d91dd069a37d7e91d5bef53.tar.gz external_llvm-7abe37e4aee38cc79d91dd069a37d7e91d5bef53.tar.bz2 |
Sync upstream to r102410.
Re-turn on sdk.
Change-Id: I91a890863989a67243b4d2dfd1ae09b843ebaeaf
Diffstat (limited to 'test/CodeGen/X86/unreachable-loop-sinking.ll')
-rw-r--r-- | test/CodeGen/X86/unreachable-loop-sinking.ll | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/test/CodeGen/X86/unreachable-loop-sinking.ll b/test/CodeGen/X86/unreachable-loop-sinking.ll new file mode 100644 index 0000000..35f6917 --- /dev/null +++ b/test/CodeGen/X86/unreachable-loop-sinking.ll @@ -0,0 +1,30 @@ +; RUN: llc < %s +; PR6777 + +; MachineSink shouldn't try to sink code in unreachable blocks, as it's +; not worthwhile, and there are corner cases which it doesn't handle. + +target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128" +target triple = "x86_64-unknown-linux-gnu" + +define double @fn1(i8* %arg, i64 %arg1) { +Entry: + br i1 undef, label %Body, label %Exit + +Exit: ; preds = %Brancher7, %Entry + ret double undef + +Body: ; preds = %Entry + br i1 false, label %Brancher7, label %Body3 + +Body3: ; preds = %Body6, %Body3, %Body + br label %Body3 + +Body6: ; preds = %Brancher7 + %tmp = fcmp oeq double 0xC04FBB2E40000000, undef ; <i1> [#uses=1] + br i1 %tmp, label %Body3, label %Brancher7 + +Brancher7: ; preds = %Body6, %Body + %tmp2 = icmp ult i32 undef, 10 ; <i1> [#uses=1] + br i1 %tmp2, label %Body6, label %Exit +} |