diff options
Diffstat (limited to 'llvm/test/Transforms/IRCE/single-access-no-preloop.ll')
| -rw-r--r-- | llvm/test/Transforms/IRCE/single-access-no-preloop.ll | 250 |
1 files changed, 0 insertions, 250 deletions
diff --git a/llvm/test/Transforms/IRCE/single-access-no-preloop.ll b/llvm/test/Transforms/IRCE/single-access-no-preloop.ll deleted file mode 100644 index fb643139c6d..00000000000 --- a/llvm/test/Transforms/IRCE/single-access-no-preloop.ll +++ /dev/null @@ -1,250 +0,0 @@ -; RUN: opt -verify-loop-info -irce -S < %s | FileCheck %s -; RUN: opt -verify-loop-info -passes='require<branch-prob>,loop(irce)' -S < %s | FileCheck %s - -define void @single_access_no_preloop_no_offset(i32 *%arr, i32 *%a_len_ptr, i32 %n) { - entry: - %len = load i32, i32* %a_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 ] - %idx.next = add i32 %idx, 1 - %abc = icmp slt i32 %idx, %len - br i1 %abc, label %in.bounds, label %out.of.bounds, !prof !1 - - in.bounds: - %addr = getelementptr i32, i32* %arr, i32 %idx - store i32 0, i32* %addr - %next = icmp slt i32 %idx.next, %n - br i1 %next, label %loop, label %exit - - out.of.bounds: - ret void - - exit: - ret void -} - -; CHECK-LABEL: @single_access_no_preloop_no_offset( - -; CHECK: loop: -; CHECK: br i1 true, label %in.bounds, label %out.of.bounds - -; CHECK: main.exit.selector: -; CHECK-NEXT: %idx.next.lcssa = phi i32 [ %idx.next, %in.bounds ] -; CHECK-NEXT: [[continue:%[^ ]+]] = icmp slt i32 %idx.next.lcssa, %n -; CHECK-NEXT: br i1 [[continue]], label %main.pseudo.exit, label %exit.loopexit - -; CHECK: main.pseudo.exit: -; CHECK-NEXT: %idx.copy = phi i32 [ 0, %loop.preheader ], [ %idx.next.lcssa, %main.exit.selector ] -; CHECK-NEXT: %indvar.end = phi i32 [ 0, %loop.preheader ], [ %idx.next.lcssa, %main.exit.selector ] -; CHECK-NEXT: br label %postloop - -; CHECK: postloop: -; CHECK-NEXT: br label %loop.postloop - -; CHECK: loop.postloop: -; CHECK-NEXT: %idx.postloop = phi i32 [ %idx.next.postloop, %in.bounds.postloop ], [ %idx.copy, %postloop ] -; CHECK-NEXT: %idx.next.postloop = add i32 %idx.postloop, 1 -; CHECK-NEXT: %abc.postloop = icmp slt i32 %idx.postloop, %len -; CHECK-NEXT: br i1 %abc.postloop, label %in.bounds.postloop, label %out.of.bounds - -; CHECK: in.bounds.postloop: -; CHECK-NEXT: %addr.postloop = getelementptr i32, i32* %arr, i32 %idx.postloop -; CHECK-NEXT: store i32 0, i32* %addr.postloop -; CHECK-NEXT: %next.postloop = icmp slt i32 %idx.next.postloop, %n -; CHECK-NEXT: br i1 %next.postloop, label %loop.postloop, label %exit.loopexit - - -define void @single_access_no_preloop_with_offset(i32 *%arr, i32 *%a_len_ptr, i32 %n) { - entry: - %len = load i32, i32* %a_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 ] - %idx.next = add i32 %idx, 1 - %idx.for.abc = add i32 %idx, 4 - %abc = icmp slt i32 %idx.for.abc, %len - br i1 %abc, label %in.bounds, label %out.of.bounds, !prof !1 - - in.bounds: - %addr = getelementptr i32, i32* %arr, i32 %idx.for.abc - store i32 0, i32* %addr - %next = icmp slt i32 %idx.next, %n - br i1 %next, label %loop, label %exit - - out.of.bounds: - ret void - - exit: - ret void -} - -; CHECK-LABEL: @single_access_no_preloop_with_offset( - -; CHECK: loop.preheader: -; CHECK: [[not_n:[^ ]+]] = sub i32 -1, %n -; CHECK: [[not_safe_range_end:[^ ]+]] = sub i32 3, %len -; CHECK: [[not_exit_main_loop_at_hiclamp_cmp:[^ ]+]] = icmp sgt i32 [[not_n]], [[not_safe_range_end]] -; CHECK: [[not_exit_main_loop_at_hiclamp:[^ ]+]] = select i1 [[not_exit_main_loop_at_hiclamp_cmp]], i32 [[not_n]], i32 [[not_safe_range_end]] -; CHECK: [[exit_main_loop_at_hiclamp:[^ ]+]] = sub i32 -1, [[not_exit_main_loop_at_hiclamp]] -; CHECK: [[exit_main_loop_at_loclamp_cmp:[^ ]+]] = icmp sgt i32 [[exit_main_loop_at_hiclamp]], 0 -; CHECK: [[exit_main_loop_at_loclamp:[^ ]+]] = select i1 [[exit_main_loop_at_loclamp_cmp]], i32 [[exit_main_loop_at_hiclamp]], i32 0 -; CHECK: [[enter_main_loop:[^ ]+]] = icmp slt i32 0, [[exit_main_loop_at_loclamp]] -; CHECK: br i1 [[enter_main_loop]], label %loop.preheader2, label %main.pseudo.exit - -; CHECK: loop: -; CHECK: br i1 true, label %in.bounds, label %out.of.bounds - -; CHECK: in.bounds: -; CHECK: [[continue_main_loop:[^ ]+]] = icmp slt i32 %idx.next, [[exit_main_loop_at_loclamp]] -; CHECK: br i1 [[continue_main_loop]], label %loop, label %main.exit.selector - -; CHECK: main.pseudo.exit: -; CHECK: %idx.copy = phi i32 [ 0, %loop.preheader ], [ %idx.next.lcssa, %main.exit.selector ] -; CHECK: br label %postloop - -; CHECK: loop.postloop: -; CHECK: %idx.postloop = phi i32 [ %idx.next.postloop, %in.bounds.postloop ], [ %idx.copy, %postloop ] - -; CHECK: in.bounds.postloop: -; CHECK: %next.postloop = icmp slt i32 %idx.next.postloop, %n -; CHECK: br i1 %next.postloop, label %loop.postloop, label %exit.loopexit - -; Make sure that we do not do IRCE if we know that the safe iteration range of -; the main loop is empty. - -define void @single_access_empty_range(i32 *%arr, i32 *%a_len_ptr, i32 %n) { - entry: - %len = load i32, i32* %a_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 ] - %idx.next = add i32 %idx, 1 - %abc = icmp slt i32 %idx, 0 - br i1 %abc, label %in.bounds, label %out.of.bounds, !prof !1 - - in.bounds: - %addr = getelementptr i32, i32* %arr, i32 %idx - store i32 0, i32* %addr - %next = icmp slt i32 %idx.next, %n - br i1 %next, label %loop, label %exit - - out.of.bounds: - ret void - - exit: - ret void -} - -; CHECK-LABEL: @single_access_empty_range( -; CHECK-NOT: br i1 false -; CHECK-NOT: preloop -; CHECK-NOT: postloop - -define void @single_access_empty_range_2(i32 *%arr, i32 *%a_len_ptr, i32 %n) { - entry: - %len = load i32, i32* %a_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.bounds2 ] - %idx.next = add i32 %idx, 1 - %abc = icmp slt i32 %idx, 60 - br i1 %abc, label %in.bounds1, label %out.of.bounds, !prof !1 - - in.bounds1: - %def = icmp slt i32 %idx, 0 - br i1 %def, label %in.bounds2, label %out.of.bounds, !prof !1 - -in.bounds2: - %addr = getelementptr i32, i32* %arr, i32 %idx - store i32 0, i32* %addr - %next = icmp slt i32 %idx.next, %n - br i1 %next, label %loop, label %exit - - out.of.bounds: - ret void - - exit: - ret void -} - -; CHECK-LABEL: @single_access_empty_range_2( -; CHECK-NOT: br i1 false -; CHECK-NOT: preloop - -define void @single_access_no_preloop_no_offset_phi_len(i32 *%arr, i32 *%a_len_ptr, i32 *%b_len_ptr, i32 %n, i1 %unknown_cond) { - entry: - br i1 %unknown_cond, label %if.true, label %if.false - -if.true: - %len_a = load i32, i32* %a_len_ptr, !range !0 - br label %merge - -if.false: - %len_b = load i32, i32* %b_len_ptr, !range !0 - br label %merge - -merge: - %len = phi i32 [ %len_a, %if.true ], [ %len_b, %if.false ] - %first.itr.check = icmp sgt i32 %n, 0 - br i1 %first.itr.check, label %loop, label %exit - - loop: - %idx = phi i32 [ 0, %merge ] , [ %idx.next, %in.bounds ] - %idx.next = add i32 %idx, 1 - %abc = icmp slt i32 %idx, %len - br i1 %abc, label %in.bounds, label %out.of.bounds, !prof !1 - - in.bounds: - %addr = getelementptr i32, i32* %arr, i32 %idx - store i32 0, i32* %addr - %next = icmp slt i32 %idx.next, %n - br i1 %next, label %loop, label %exit - - out.of.bounds: - ret void - - exit: - ret void -} - -; CHECK-LABEL: @single_access_no_preloop_no_offset_phi_len( - -; CHECK: loop: -; CHECK: br i1 true, label %in.bounds, label %out.of.bounds - -; CHECK: main.exit.selector: -; CHECK-NEXT: %idx.next.lcssa = phi i32 [ %idx.next, %in.bounds ] -; CHECK-NEXT: [[continue:%[^ ]+]] = icmp slt i32 %idx.next.lcssa, %n -; CHECK-NEXT: br i1 [[continue]], label %main.pseudo.exit, label %exit.loopexit - -; CHECK: main.pseudo.exit: -; CHECK-NEXT: %idx.copy = phi i32 [ 0, %loop.preheader ], [ %idx.next.lcssa, %main.exit.selector ] -; CHECK-NEXT: %indvar.end = phi i32 [ 0, %loop.preheader ], [ %idx.next.lcssa, %main.exit.selector ] -; CHECK-NEXT: br label %postloop - -; CHECK: postloop: -; CHECK-NEXT: br label %loop.postloop - -; CHECK: loop.postloop: -; CHECK-NEXT: %idx.postloop = phi i32 [ %idx.next.postloop, %in.bounds.postloop ], [ %idx.copy, %postloop ] -; CHECK-NEXT: %idx.next.postloop = add i32 %idx.postloop, 1 -; CHECK-NEXT: %abc.postloop = icmp slt i32 %idx.postloop, %len -; CHECK-NEXT: br i1 %abc.postloop, label %in.bounds.postloop, label %out.of.bounds - -; CHECK: in.bounds.postloop: -; CHECK-NEXT: %addr.postloop = getelementptr i32, i32* %arr, i32 %idx.postloop -; CHECK-NEXT: store i32 0, i32* %addr.postloop -; CHECK-NEXT: %next.postloop = icmp slt i32 %idx.next.postloop, %n -; CHECK-NEXT: br i1 %next.postloop, label %loop.postloop, label %exit.loopexit - -!0 = !{i32 0, i32 2147483647} -!1 = !{!"branch_weights", i32 64, i32 4} |
