diff options
Diffstat (limited to 'llvm/test/Transforms/IndVarSimplify/2008-10-03-CouldNotCompute.ll')
-rw-r--r-- | llvm/test/Transforms/IndVarSimplify/2008-10-03-CouldNotCompute.ll | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/llvm/test/Transforms/IndVarSimplify/2008-10-03-CouldNotCompute.ll b/llvm/test/Transforms/IndVarSimplify/2008-10-03-CouldNotCompute.ll new file mode 100644 index 00000000000..c78188d4d22 --- /dev/null +++ b/llvm/test/Transforms/IndVarSimplify/2008-10-03-CouldNotCompute.ll @@ -0,0 +1,32 @@ +; RUN: llvm-as < %s | opt -indvars +; PR2857 + +@foo = external global i32 ; <i32*> [#uses=1] + +define void @test(i32 %n, i32 %arg) { +entry: + br i1 false, label %bb.nph, label %return + +bb.nph: ; preds = %entry + %0 = load i32* @foo, align 4 ; <i32> [#uses=1] + %1 = sext i32 %0 to i64 ; <i64> [#uses=1] + br label %bb + +bb: ; preds = %bb, %bb.nph + %.in = phi i32 [ %2, %bb ], [ %n, %bb.nph ] ; <i32> [#uses=1] + %val.02 = phi i64 [ %5, %bb ], [ 0, %bb.nph ] ; <i64> [#uses=2] + %result.01 = phi i64 [ %4, %bb ], [ 0, %bb.nph ] ; <i64> [#uses=1] + %2 = add i32 %.in, -1 ; <i32> [#uses=2] + %3 = mul i64 %1, %val.02 ; <i64> [#uses=1] + %4 = add i64 %3, %result.01 ; <i64> [#uses=2] + %5 = add i64 %val.02, 1 ; <i64> [#uses=1] + %6 = icmp sgt i32 %2, 0 ; <i1> [#uses=1] + br i1 %6, label %bb, label %bb3.bb4_crit_edge + +bb3.bb4_crit_edge: ; preds = %bb + %.lcssa = phi i64 [ %4, %bb ] ; <i64> [#uses=0] + ret void + +return: ; preds = %entry + ret void +} |