diff options
Diffstat (limited to 'test/Transforms/IRCE/multiple-access-no-preloop.ll')
-rw-r--r-- | test/Transforms/IRCE/multiple-access-no-preloop.ll | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/test/Transforms/IRCE/multiple-access-no-preloop.ll b/test/Transforms/IRCE/multiple-access-no-preloop.ll new file mode 100644 index 0000000..304bb4d --- /dev/null +++ b/test/Transforms/IRCE/multiple-access-no-preloop.ll @@ -0,0 +1,66 @@ +; RUN: opt -irce -S < %s | FileCheck %s + +define void @multiple_access_no_preloop( + i32* %arr_a, i32* %a_len_ptr, i32* %arr_b, i32* %b_len_ptr, i32 %n) { + + entry: + %len.a = load i32* %a_len_ptr, !range !0 + %len.b = load i32* %b_len_ptr, !range !0 + %first.itr.check = icmp sgt i32 %n, 0 + br i1 %first.itr.check, label %loop, label %exit + + loop: + %idx = phi i32 [ 0, %entry ] , [ %idx.next, %in.bounds.b ] + %idx.next = add i32 %idx, 1 + %abc.a = icmp slt i32 %idx, %len.a + br i1 %abc.a, label %in.bounds.a, label %out.of.bounds, !prof !1 + + in.bounds.a: + %addr.a = getelementptr i32* %arr_a, i32 %idx + store i32 0, i32* %addr.a + %abc.b = icmp slt i32 %idx, %len.b + br i1 %abc.b, label %in.bounds.b, label %out.of.bounds, !prof !1 + + in.bounds.b: + %addr.b = getelementptr i32* %arr_b, i32 %idx + store i32 -1, i32* %addr.b + %next = icmp slt i32 %idx.next, %n + br i1 %next, label %loop, label %exit + + out.of.bounds: + ret void + + exit: + ret void +} + +; CHECK-LABEL: multiple_access_no_preloop + +; CHECK-LABEL: loop.preheader: +; CHECK: [[not_len_b:[^ ]+]] = sub i32 -1, %len.b +; CHECK: [[not_len_a:[^ ]+]] = sub i32 -1, %len.a +; CHECK: [[smax_not_len_cond:[^ ]+]] = icmp sgt i32 [[not_len_b]], [[not_len_a]] +; CHECK: [[smax_not_len:[^ ]+]] = select i1 [[smax_not_len_cond]], i32 [[not_len_b]], i32 [[not_len_a]] +; CHECK: [[not_n:[^ ]+]] = sub i32 -1, %n +; CHECK: [[not_upper_limit_cond_loclamp:[^ ]+]] = icmp sgt i32 [[smax_not_len]], [[not_n]] +; CHECK: [[not_upper_limit_loclamp:[^ ]+]] = select i1 [[not_upper_limit_cond_loclamp]], i32 [[smax_not_len]], i32 [[not_n]] +; CHECK: [[upper_limit_loclamp:[^ ]+]] = sub i32 -1, [[not_upper_limit_loclamp]] +; CHECK: [[upper_limit_cmp:[^ ]+]] = icmp sgt i32 [[upper_limit_loclamp]], 0 +; CHECK: [[upper_limit:[^ ]+]] = select i1 [[upper_limit_cmp]], i32 [[upper_limit_loclamp]], i32 0 + +; CHECK-LABEL: loop: +; CHECK: br i1 true, label %in.bounds.a, label %out.of.bounds + +; CHECK-LABEL: in.bounds.a: +; CHECK: br i1 true, label %in.bounds.b, label %out.of.bounds + +; CHECK-LABEL: in.bounds.b: +; CHECK: [[main_loop_cond:[^ ]+]] = icmp slt i32 %idx.next, [[upper_limit]] +; CHECK: br i1 [[main_loop_cond]], label %loop, label %main.exit.selector + +; CHECK-LABEL: in.bounds.b.postloop: +; CHECK: %next.postloop = icmp slt i32 %idx.next.postloop, %n +; CHECK: br i1 %next.postloop, label %loop.postloop, label %exit.loopexit + +!0 = !{i32 0, i32 2147483647} +!1 = !{!"branch_weights", i32 64, i32 4} |