mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-08-21 03:29:40 +00:00
Re-commit the test cases added in r232444. These now use -irce-print-changed-loops and -irce-print-range-checks so they run correctly on a without asserts build of llvm. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@232452 91177308-0d34-0410-b5e6-96231b3b80d8
38 lines
1.2 KiB
LLVM
38 lines
1.2 KiB
LLVM
; RUN: opt -irce-print-range-checks -irce-print-changed-loops -irce < %s 2>&1 | FileCheck %s
|
|
|
|
; CHECK: irce: loop has 1 inductive range checks:
|
|
; CHECK-NEXT: InductiveRangeCheck:
|
|
; CHECK-NEXT: Kind: RANGE_CHECK_LOWER
|
|
; CHECK-NEXT: Offset: (-1 + %n) Scale: -1 Length: (null)
|
|
; CHECK-NEXT: Branch: br i1 %abc, label %in.bounds, label %out.of.bounds
|
|
; CHECK-NEXT: irce: in function only_lower_check: constrained Loop at depth 1 containing: %loop<header><exiting>,%in.bounds<latch><exiting>
|
|
|
|
define void @only_lower_check(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
|
|
%start = sub i32 %n, 1
|
|
br i1 %first.itr.check, label %loop, label %exit
|
|
|
|
loop:
|
|
%idx = phi i32 [ %start, %entry ] , [ %idx.dec, %in.bounds ]
|
|
%idx.dec = sub i32 %idx, 1
|
|
%abc = icmp sge 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 sgt i32 %idx.dec, -1
|
|
br i1 %next, label %loop, label %exit
|
|
|
|
out.of.bounds:
|
|
ret void
|
|
|
|
exit:
|
|
ret void
|
|
}
|
|
|
|
!0 = !{i32 0, i32 2147483647}
|
|
!1 = !{!"branch_weights", i32 64, i32 4}
|