llvm-project/llvm/test/Analysis/ScalarEvolution/avoid-infinite-recursion-0.ll
Dan Gohman 1880092722 Change tests from "opt %s" to "opt < %s" so that opt doesn't see the
input filename so that opt doesn't print the input filename in the
output so that grep lines in the tests don't unintentionally match
strings in the input filename.

llvm-svn: 81537
2009-09-11 18:01:28 +00:00

31 lines
1.1 KiB
LLVM

; RUN: opt < %s -analyze -scalar-evolution -disable-output
; PR4537
; ModuleID = 'b.bc'
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"
target triple = "x86_64-unknown-linux-gnu"
define i32 @test() {
entry:
%0 = load i32** undef, align 8 ; <i32*> [#uses=1]
%1 = ptrtoint i32* %0 to i64 ; <i64> [#uses=1]
%2 = sub i64 undef, %1 ; <i64> [#uses=1]
%3 = lshr i64 %2, 3 ; <i64> [#uses=1]
%4 = trunc i64 %3 to i32 ; <i32> [#uses=2]
br i1 undef, label %bb10, label %bb4.i
bb4.i: ; preds = %bb4.i, %entry
%i.0.i6 = phi i32 [ %8, %bb4.i ], [ 0, %entry ] ; <i32> [#uses=2]
%5 = sub i32 %4, %i.0.i6 ; <i32> [#uses=1]
%6 = sext i32 %5 to i64 ; <i64> [#uses=1]
%7 = udiv i64 undef, %6 ; <i64> [#uses=1]
%8 = add i32 %i.0.i6, 1 ; <i32> [#uses=2]
%phitmp = icmp eq i64 %7, 0 ; <i1> [#uses=1]
%.not.i = icmp sge i32 %8, %4 ; <i1> [#uses=1]
%or.cond.i = or i1 %phitmp, %.not.i ; <i1> [#uses=1]
br i1 %or.cond.i, label %bb10, label %bb4.i
bb10: ; preds = %bb4.i, %entry
unreachable
}