File: load-with-range-metadata.ll

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llvm-toolchain-13 1%3A13.0.1-6~deb11u1
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; RUN: opt -analyze -enable-new-pm=0 -scalar-evolution < %s | FileCheck %s
; RUN: opt -disable-output "-passes=print<scalar-evolution>" < %s 2>&1 | FileCheck %s

define i32 @slt_trip_count_with_range(i32 *%ptr0, i32 *%ptr1) {
; CHECK-LABEL: slt_trip_count_with_range
 entry:
  %limit = load i32, i32* %ptr0, !range !0
  br label %loop

 loop:
; CHECK: Loop %loop: max backedge-taken count is 98
  %index = phi i32 [ 0, %entry ], [ %index.inc, %loop ]
  %index.inc = add i32 %index, 1
  %continue = icmp slt i32 %index.inc, %limit
  br i1 %continue, label %loop, label %loop.exit

 loop.exit:
  ret i32 0
}

define i32 @ult_trip_count_with_range(i32 *%ptr0, i32 *%ptr1) {
; CHECK-LABEL: ult_trip_count_with_range
 entry:
  %limit = load i32, i32* %ptr0, !range !0
  br label %loop

 loop:
; CHECK: Loop %loop: max backedge-taken count is 98
  %index = phi i32 [ 0, %entry ], [ %index.inc, %loop ]
  %index.inc = add i32 %index, 1
  %continue = icmp ult i32 %index.inc, %limit
  br i1 %continue, label %loop, label %loop.exit

 loop.exit:
  ret i32 0
}

!0 = !{i32 1, i32 100}