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Diffstat (limited to 'test/Analysis/ScalarEvolution/sext-inreg.ll')
| -rw-r--r-- | test/Analysis/ScalarEvolution/sext-inreg.ll | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/test/Analysis/ScalarEvolution/sext-inreg.ll b/test/Analysis/ScalarEvolution/sext-inreg.ll new file mode 100644 index 0000000..c482fe6 --- /dev/null +++ b/test/Analysis/ScalarEvolution/sext-inreg.ll @@ -0,0 +1,29 @@ +; RUN: llvm-as < %s | opt -analyze -scalar-evolution -disable-output \ +; RUN: | grep {signextend \{0,+,199\}<bb> to i64} | count 2 + +target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128" +target triple = "i386-apple-darwin9.6" + +define i64 @foo(i64* nocapture %x, i64 %n) nounwind { +entry: + %t0 = icmp sgt i64 %n, 0 ; <i1> [#uses=1] + br i1 %t0, label %bb, label %return + +bb: ; preds = %bb, %entry + %i.01 = phi i64 [ 0, %entry ], [ %indvar.next, %bb ] ; <i32> [#uses=2] + %t1 = shl i64 %i.01, 7 ; <i32> [#uses=1] + %t2 = ashr i64 %t1, 7 ; <i32> [#uses=1] + %s1 = shl i64 %i.01, 5 ; <i32> [#uses=1] + %s2 = ashr i64 %s1, 5 ; <i32> [#uses=1] + %t3 = getelementptr i64* %x, i64 %i.01 ; <i64*> [#uses=1] + store i64 0, i64* %t3, align 1 + %indvar.next = add i64 %i.01, 199 ; <i32> [#uses=2] + %exitcond = icmp eq i64 %indvar.next, %n ; <i1> [#uses=1] + br i1 %exitcond, label %return, label %bb + +return: ; preds = %bb, %entry + %p = phi i64 [ 0, %entry ], [ %t2, %bb ] + %q = phi i64 [ 0, %entry ], [ %s2, %bb ] + %v = xor i64 %p, %q + ret i64 %v +} |