diff options
Diffstat (limited to 'llvm/test')
| -rw-r--r-- | llvm/test/Transforms/IndVarSimplify/eliminate-comparison.ll | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/llvm/test/Transforms/IndVarSimplify/eliminate-comparison.ll b/llvm/test/Transforms/IndVarSimplify/eliminate-comparison.ll index 563ea3a1b43..eb60bacc8a6 100644 --- a/llvm/test/Transforms/IndVarSimplify/eliminate-comparison.ll +++ b/llvm/test/Transforms/IndVarSimplify/eliminate-comparison.ll @@ -535,5 +535,55 @@ define void @func_23(i32* %length.ptr) { ret void } +define void @func_24(i32* %length.ptr) { +; CHECK-LABEL: @func_24( + entry: + %length = load i32, i32* %length.ptr, !range !0 + %entry.cond = icmp ult i32 4, %length + br i1 %entry.cond, label %loop, label %leave + + loop: +; CHECK: loop: + %iv = phi i32 [ 4, %entry ], [ %iv.inc, %be ] + %iv.inc = add i32 %iv, 1 + %range.check = icmp slt i32 %iv, %length + br i1 %range.check, label %be, label %leave +; CHECK: br i1 true, label %be, label %leave.loopexit +; CHECK: be: + + be: + call void @side_effect() + %be.cond = icmp slt i32 %iv.inc, %length + br i1 %be.cond, label %loop, label %leave + + leave: + ret void +} + +define void @func_25(i32* %init.ptr) { +; CHECK-LABEL: @func_25( + entry: + %init = load i32, i32* %init.ptr, !range !0 + %entry.cond = icmp ugt i32 %init, 4 + br i1 %entry.cond, label %loop, label %leave + + loop: +; CHECK: loop: + %iv = phi i32 [ %init, %entry ], [ %iv.dec, %be ] + %iv.dec = add i32 %iv, -1 + %range.check = icmp sgt i32 %iv, 4 + br i1 %range.check, label %be, label %leave +; CHECK: br i1 true, label %be, label %leave.loopexit +; CHECK: be: + + be: + call void @side_effect() + %be.cond = icmp sgt i32 %iv.dec, 4 + br i1 %be.cond, label %loop, label %leave + + leave: + ret void +} + !0 = !{i32 0, i32 2147483647} |
