llvm-6502/test/Transforms/IndVarSimplify/phi-uses-value-multiple-times.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

39 lines
905 B
LLVM

; REQUIRES: asserts
; RUN: opt < %s -indvars -disable-output -stats -info-output-file - | FileCheck %s
; Check that IndVarSimplify is not creating unnecessary canonical IVs
; that will never be used.
; CHECK-NOT: indvars
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128"
@ue = external global i64
define i32 @foo() nounwind {
entry:
br label %bb38.i
bb14.i27:
%t0 = load i64, i64* @ue, align 8
%t1 = sub i64 %t0, %i.0.i35
%t2 = add i64 %t1, 1
br i1 undef, label %bb15.i28, label %bb19.i31
bb15.i28:
br label %bb19.i31
bb19.i31:
%y.0.i = phi i64 [ %t2, %bb15.i28 ], [ %t2, %bb14.i27 ]
br label %bb35.i
bb35.i:
br i1 undef, label %bb37.i, label %bb14.i27
bb37.i:
%t3 = add i64 %i.0.i35, 1
br label %bb38.i
bb38.i:
%i.0.i35 = phi i64 [ 1, %entry ], [ %t3, %bb37.i ]
br label %bb35.i
}