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author | Stephen Hines <srhines@google.com> | 2014-07-21 00:45:20 -0700 |
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committer | Stephen Hines <srhines@google.com> | 2014-07-25 00:48:57 -0700 |
commit | cd81d94322a39503e4a3e87b6ee03d4fcb3465fb (patch) | |
tree | 81b7dd2bb4370a392f31d332a566c903b5744764 /test/CodeGen/X86/2014-05-29-factorial.ll | |
parent | 0c5f13c0c4499eaf42ab5e9e2ceabd4e20e36861 (diff) | |
download | external_llvm-cd81d94322a39503e4a3e87b6ee03d4fcb3465fb.zip external_llvm-cd81d94322a39503e4a3e87b6ee03d4fcb3465fb.tar.gz external_llvm-cd81d94322a39503e4a3e87b6ee03d4fcb3465fb.tar.bz2 |
Update LLVM for rebase to r212749.
Includes a cherry-pick of:
r212948 - fixes a small issue with atomic calls
Change-Id: Ib97bd980b59f18142a69506400911a6009d9df18
Diffstat (limited to 'test/CodeGen/X86/2014-05-29-factorial.ll')
-rw-r--r-- | test/CodeGen/X86/2014-05-29-factorial.ll | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/test/CodeGen/X86/2014-05-29-factorial.ll b/test/CodeGen/X86/2014-05-29-factorial.ll new file mode 100644 index 0000000..987a21d --- /dev/null +++ b/test/CodeGen/X86/2014-05-29-factorial.ll @@ -0,0 +1,24 @@ +; RUN: llc < %s -march=x86-64 | FileCheck %s +; CHECK: decq [[X:%rdi|%rcx]] +; CHECK-NOT: testq [[X]], [[X]] + +define i64 @fact2(i64 %x) { +entry: + br label %while.body + +while.body: + %result.06 = phi i64 [ %mul, %while.body ], [ 1, %entry ] + %x.addr.05 = phi i64 [ %dec, %while.body ], [ %x, %entry ] + %mul = mul nsw i64 %result.06, %x.addr.05 + %dec = add nsw i64 %x.addr.05, -1 + %cmp = icmp sgt i64 %dec, 0 + br i1 %cmp, label %while.body, label %while.end.loopexit + +while.end.loopexit: + %mul.lcssa = phi i64 [ %mul, %while.body ] + br label %while.end + +while.end: + %result.0.lcssa = phi i64 [ %mul.lcssa, %while.end.loopexit ] + ret i64 %result.0.lcssa +} |