llvm-6502/test/Analysis/ScalarEvolution/2009-01-02-SignedNegativeStride.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

44 lines
1.1 KiB
LLVM

; RUN: opt < %s -analyze -scalar-evolution | FileCheck %s
; PR3275
; CHECK: Printing analysis 'Scalar Evolution Analysis' for function 'func_15'
; CHECK-NOT: /u -1
@g_16 = external global i16 ; <i16*> [#uses=3]
@.str = external constant [4 x i8] ; <[4 x i8]*> [#uses=0]
define void @func_15() nounwind {
entry:
%0 = load i16, i16* @g_16, align 2 ; <i16> [#uses=1]
%1 = icmp sgt i16 %0, 0 ; <i1> [#uses=1]
br i1 %1, label %bb2, label %bb.nph
bb.nph: ; preds = %entry
%g_16.promoted = load i16, i16* @g_16 ; <i16> [#uses=1]
br label %bb
bb: ; preds = %bb1, %bb.nph
%g_16.tmp.0 = phi i16 [ %g_16.promoted, %bb.nph ], [ %2, %bb1 ] ; <i16> [#uses=1]
%2 = add i16 %g_16.tmp.0, -1 ; <i16> [#uses=3]
br label %bb1
bb1: ; preds = %bb
%3 = icmp sgt i16 %2, 0 ; <i1> [#uses=1]
br i1 %3, label %bb1.bb2_crit_edge, label %bb
bb1.bb2_crit_edge: ; preds = %bb1
store i16 %2, i16* @g_16
br label %bb2
bb2: ; preds = %bb1.bb2_crit_edge, %entry
br label %return
return: ; preds = %bb2
ret void
}
declare i32 @main() nounwind
declare i32 @printf(i8*, ...) nounwind