llvm-6502/test/Analysis/ScalarEvolution/load-with-range-metadata.ll
David Blaikie 7c9c6ed761 [opaque pointer type] Add textual IR support for explicit type parameter to load instruction
Essentially the same as the GEP change in r230786.

A similar migration script can be used to update test cases, though a few more
test case improvements/changes were required this time around: (r229269-r229278)

import fileinput
import sys
import re

pat = re.compile(r"((?:=|:|^)\s*load (?:atomic )?(?:volatile )?(.*?))(| addrspace\(\d+\) *)\*($| *(?:%|@|null|undef|blockaddress|getelementptr|addrspacecast|bitcast|inttoptr|\[\[[a-zA-Z]|\{\{).*$)")

for line in sys.stdin:
  sys.stdout.write(re.sub(pat, r"\1, \2\3*\4", line))

Reviewers: rafael, dexonsmith, grosser

Differential Revision: http://reviews.llvm.org/D7649

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230794 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-27 21:17:42 +00:00

38 lines
972 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, 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}