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Diffstat (limited to 'test/CodeGen/X86/avoid-loop-align.ll')
| -rw-r--r-- | test/CodeGen/X86/avoid-loop-align.ll | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/test/CodeGen/X86/avoid-loop-align.ll b/test/CodeGen/X86/avoid-loop-align.ll new file mode 100644 index 0000000000..dfc58181d9 --- /dev/null +++ b/test/CodeGen/X86/avoid-loop-align.ll @@ -0,0 +1,32 @@ +; RUN: llvm-as < %s | llc -mtriple=i386-apple-darwin | grep align | count 1 + +@A = common global [100 x i32] zeroinitializer, align 32 ; <[100 x i32]*> [#uses=1] + +define i8* @test(i8* %Q, i32* %L) nounwind { +entry: + %tmp = tail call i32 (...)* @foo() nounwind ; <i32> [#uses=2] + %tmp1 = inttoptr i32 %tmp to i8* ; <i8*> [#uses=1] + br label %bb1 + +bb: ; preds = %bb1, %bb1 + %indvar.next = add i32 %P.0.rec, 1 ; <i32> [#uses=1] + br label %bb1 + +bb1: ; preds = %bb, %entry + %P.0.rec = phi i32 [ 0, %entry ], [ %indvar.next, %bb ] ; <i32> [#uses=2] + %P.0 = getelementptr i8* %tmp1, i32 %P.0.rec ; <i8*> [#uses=3] + %tmp2 = load i8* %P.0, align 1 ; <i8> [#uses=1] + switch i8 %tmp2, label %bb4 [ + i8 12, label %bb + i8 42, label %bb + ] + +bb4: ; preds = %bb1 + %tmp3 = ptrtoint i8* %P.0 to i32 ; <i32> [#uses=1] + %tmp4 = sub i32 %tmp3, %tmp ; <i32> [#uses=1] + %tmp5 = getelementptr [100 x i32]* @A, i32 0, i32 %tmp4 ; <i32*> [#uses=1] + store i32 4, i32* %tmp5, align 4 + ret i8* %P.0 +} + +declare i32 @foo(...) |