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; RUN: opt -verify-loop-info -irce -irce-print-range-checks -irce-print-changed-loops %s -S 2>&1 | FileCheck %s
; RUN: opt -verify-loop-info -passes='require<branch-prob>,irce' -irce-print-range-checks -irce-print-changed-loops %s -S 2>&1 | FileCheck %s
; Make sure that we can pick up both range checks.
define void @test_01(i32 *%arr, i32* %a_len_ptr, i32* %size_ptr) {
; CHECK-LABEL: @test_01(
entry:
%len = load i32, i32* %a_len_ptr, !range !0
%size = load i32, i32* %size_ptr
%first_iter_check = icmp sle i32 %size, 0
br i1 %first_iter_check, label %exit, label %loop
loop:
%iv = phi i32 [ 0, %entry ], [ %iv.next, %backedge ]
%rc1 = icmp slt i32 %iv, %len
%rc2 = icmp slt i32 %iv, %size
; CHECK: %rc = and i1 true, true
%rc = and i1 %rc1, %rc2
br i1 %rc, label %backedge, label %out_of_bounds
backedge:
%iv.next = add i32 %iv, 1
%arr_el_ptr = getelementptr i32, i32* %arr, i32 %iv
%el = load i32, i32* %arr_el_ptr
%loopcond = icmp ne i32 %iv, %size
br i1 %loopcond, label %loop, label %exit
exit:
ret void
out_of_bounds:
ret void
}
; Same as test_01, unsigned predicates.
define void @test_02(i32 *%arr, i32* %a_len_ptr, i32* %size_ptr) {
; CHECK-LABEL: @test_02(
entry:
%len = load i32, i32* %a_len_ptr, !range !0
%size = load i32, i32* %size_ptr
%first_iter_check = icmp sle i32 %size, 0
br i1 %first_iter_check, label %exit, label %loop
loop:
%iv = phi i32 [ 0, %entry ], [ %iv.next, %backedge ]
%rc1 = icmp ult i32 %iv, %len
%rc2 = icmp ult i32 %iv, %size
; CHECK: %rc = and i1 true, true
%rc = and i1 %rc1, %rc2
br i1 %rc, label %backedge, label %out_of_bounds
backedge:
%iv.next = add i32 %iv, 1
%arr_el_ptr = getelementptr i32, i32* %arr, i32 %iv
%el = load i32, i32* %arr_el_ptr
%loopcond = icmp ne i32 %iv, %size
br i1 %loopcond, label %loop, label %exit
exit:
ret void
out_of_bounds:
ret void
}
define void @test_03(i32 *%arr, i32* %a_len_ptr, i32* %size_ptr) {
; CHECK-LABEL: @test_03(
entry:
%len = load i32, i32* %a_len_ptr, !range !0
%size = load i32, i32* %size_ptr
%first_iter_check = icmp eq i32 %size, 0
br i1 %first_iter_check, label %exit, label %loop
loop:
%iv = phi i32 [ 0, %entry ], [ %iv.next, %backedge ]
%rc1 = icmp slt i32 %iv, %len
%rc2 = icmp slt i32 %iv, %size
; CHECK: %rc = and i1 true, true
%rc = and i1 %rc1, %rc2
br i1 %rc, label %backedge, label %out_of_bounds
backedge:
%iv.next = add i32 %iv, 1
%arr_el_ptr = getelementptr i32, i32* %arr, i32 %iv
%el = load i32, i32* %arr_el_ptr
%loopcond = icmp ne i32 %iv, %len
br i1 %loopcond, label %loop, label %exit
exit:
ret void
out_of_bounds:
ret void
}
define void @test_04(i32 *%arr, i32* %a_len_ptr, i32* %size_ptr) {
; CHECK-LABEL: @test_04(
entry:
%len = load i32, i32* %a_len_ptr, !range !0
%size = load i32, i32* %size_ptr
%first_iter_check = icmp eq i32 %size, 0
br i1 %first_iter_check, label %exit, label %loop
loop:
%iv = phi i32 [ 0, %entry ], [ %iv.next, %backedge ]
%rc1 = icmp ult i32 %iv, %len
%rc2 = icmp ult i32 %iv, %size
; CHECK: %rc = and i1 true, true
%rc = and i1 %rc1, %rc2
br i1 %rc, label %backedge, label %out_of_bounds
backedge:
%iv.next = add i32 %iv, 1
%arr_el_ptr = getelementptr i32, i32* %arr, i32 %iv
%el = load i32, i32* %arr_el_ptr
%loopcond = icmp ne i32 %iv, %len
br i1 %loopcond, label %loop, label %exit
exit:
ret void
out_of_bounds:
ret void
}
!0 = !{i32 0, i32 2147483647}
!1 = !{!"branch_weights", i32 64, i32 4}
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