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Diffstat (limited to 'test/CodeGen/X86/loop-strength-reduce4.ll')
| -rw-r--r-- | test/CodeGen/X86/loop-strength-reduce4.ll | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/test/CodeGen/X86/loop-strength-reduce4.ll b/test/CodeGen/X86/loop-strength-reduce4.ll new file mode 100644 index 0000000000000..711f223749ce8 --- /dev/null +++ b/test/CodeGen/X86/loop-strength-reduce4.ll @@ -0,0 +1,49 @@ +; RUN: llvm-as < %s | llc -march=x86 | grep cmp | grep 64 +; RUN: llvm-as < %s | llc -march=x86 | not grep inc + +@state = external global [0 x i32] ; <[0 x i32]*> [#uses=4] +@S = external global [0 x i32] ; <[0 x i32]*> [#uses=4] + +define i32 @foo() { +entry: + br label %bb + +bb: ; preds = %bb, %entry + %indvar = phi i32 [ 0, %entry ], [ %indvar.next, %bb ] ; <i32> [#uses=2] + %t.063.0 = phi i32 [ 0, %entry ], [ %tmp47, %bb ] ; <i32> [#uses=1] + %j.065.0 = shl i32 %indvar, 2 ; <i32> [#uses=4] + %tmp3 = getelementptr [0 x i32]* @state, i32 0, i32 %j.065.0 ; <i32*> [#uses=2] + %tmp4 = load i32* %tmp3, align 4 ; <i32> [#uses=1] + %tmp6 = getelementptr [0 x i32]* @S, i32 0, i32 %t.063.0 ; <i32*> [#uses=1] + %tmp7 = load i32* %tmp6, align 4 ; <i32> [#uses=1] + %tmp8 = xor i32 %tmp7, %tmp4 ; <i32> [#uses=2] + store i32 %tmp8, i32* %tmp3, align 4 + %tmp1378 = or i32 %j.065.0, 1 ; <i32> [#uses=1] + %tmp16 = getelementptr [0 x i32]* @state, i32 0, i32 %tmp1378 ; <i32*> [#uses=2] + %tmp17 = load i32* %tmp16, align 4 ; <i32> [#uses=1] + %tmp19 = getelementptr [0 x i32]* @S, i32 0, i32 %tmp8 ; <i32*> [#uses=1] + %tmp20 = load i32* %tmp19, align 4 ; <i32> [#uses=1] + %tmp21 = xor i32 %tmp20, %tmp17 ; <i32> [#uses=2] + store i32 %tmp21, i32* %tmp16, align 4 + %tmp2680 = or i32 %j.065.0, 2 ; <i32> [#uses=1] + %tmp29 = getelementptr [0 x i32]* @state, i32 0, i32 %tmp2680 ; <i32*> [#uses=2] + %tmp30 = load i32* %tmp29, align 4 ; <i32> [#uses=1] + %tmp32 = getelementptr [0 x i32]* @S, i32 0, i32 %tmp21 ; <i32*> [#uses=1] + %tmp33 = load i32* %tmp32, align 4 ; <i32> [#uses=1] + %tmp34 = xor i32 %tmp33, %tmp30 ; <i32> [#uses=2] + store i32 %tmp34, i32* %tmp29, align 4 + %tmp3982 = or i32 %j.065.0, 3 ; <i32> [#uses=1] + %tmp42 = getelementptr [0 x i32]* @state, i32 0, i32 %tmp3982 ; <i32*> [#uses=2] + %tmp43 = load i32* %tmp42, align 4 ; <i32> [#uses=1] + %tmp45 = getelementptr [0 x i32]* @S, i32 0, i32 %tmp34 ; <i32*> [#uses=1] + %tmp46 = load i32* %tmp45, align 4 ; <i32> [#uses=1] + %tmp47 = xor i32 %tmp46, %tmp43 ; <i32> [#uses=3] + store i32 %tmp47, i32* %tmp42, align 4 + %indvar.next = add i32 %indvar, 1 ; <i32> [#uses=2] + %exitcond = icmp eq i32 %indvar.next, 4 ; <i1> [#uses=1] + br i1 %exitcond, label %bb57, label %bb + +bb57: ; preds = %bb + %tmp59 = and i32 %tmp47, 255 ; <i32> [#uses=1] + ret i32 %tmp59 +} |