llvm-6502/test/Analysis/ScalarEvolution/load-with-range-metadata.ll
Duncan P. N. Exon Smith 1ef70ff39b IR: Make metadata typeless in assembly
Now that `Metadata` is typeless, reflect that in the assembly.  These
are the matching assembly changes for the metadata/value split in
r223802.

  - Only use the `metadata` type when referencing metadata from a call
    intrinsic -- i.e., only when it's used as a `Value`.

  - Stop pretending that `ValueAsMetadata` is wrapped in an `MDNode`
    when referencing it from call intrinsics.

So, assembly like this:

    define @foo(i32 %v) {
      call void @llvm.foo(metadata !{i32 %v}, metadata !0)
      call void @llvm.foo(metadata !{i32 7}, metadata !0)
      call void @llvm.foo(metadata !1, metadata !0)
      call void @llvm.foo(metadata !3, metadata !0)
      call void @llvm.foo(metadata !{metadata !3}, metadata !0)
      ret void, !bar !2
    }
    !0 = metadata !{metadata !2}
    !1 = metadata !{i32* @global}
    !2 = metadata !{metadata !3}
    !3 = metadata !{}

turns into this:

    define @foo(i32 %v) {
      call void @llvm.foo(metadata i32 %v, metadata !0)
      call void @llvm.foo(metadata i32 7, metadata !0)
      call void @llvm.foo(metadata i32* @global, metadata !0)
      call void @llvm.foo(metadata !3, metadata !0)
      call void @llvm.foo(metadata !{!3}, metadata !0)
      ret void, !bar !2
    }
    !0 = !{!2}
    !1 = !{i32* @global}
    !2 = !{!3}
    !3 = !{}

I wrote an upgrade script that handled almost all of the tests in llvm
and many of the tests in cfe (even handling many `CHECK` lines).  I've
attached it (or will attach it in a moment if you're speedy) to PR21532
to help everyone update their out-of-tree testcases.

This is part of PR21532.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@224257 91177308-0d34-0410-b5e6-96231b3b80d8
2014-12-15 19:07:53 +00:00

38 lines
962 B
LLVM

; RUN: opt -analyze -scalar-evolution < %s | FileCheck %s
define i32 @slt_trip_count_with_range(i32 *%ptr0, i32 *%ptr1) {
; CHECK-LABEL: slt_trip_count_with_range
entry:
%limit = load 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* %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}