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; RUN: opt %loadPolly %defaultOpts -polly-cloog -analyze -S %s | FileCheck %s
; RUN: opt %loadPolly %defaultOpts -polly-codegen -O3 %s
; ModuleID = 'single_do_loop_ll_max_iterations.s'
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-n8:16:32:64"
target triple = "x86_64-unknown-linux-gnu"
@A = common global [20 x i64] zeroinitializer, align 8 ; <[20 x i64]*> [#uses=1]
define i32 @main() nounwind {
entry:
volatile store i64 0, i64* getelementptr inbounds ([20 x i64]* @A, i32 0, i32 0)
call void @llvm.memory.barrier(i1 true, i1 true, i1 true, i1 true, i1 false)
br label %do.body
do.body: ; preds = %do.cond, %entry
%0 = phi i64 [ 0, %entry ], [ %inc, %do.cond ] ; <i64> [#uses=2]
volatile store i64 %0, i64* getelementptr inbounds ([20 x i64]* @A, i32 0, i32 0)
%inc = add nsw i64 %0, 1 ; <i64> [#uses=2]
br label %do.cond
do.cond: ; preds = %do.body
%exitcond = icmp ne i64 %inc, 9223372036854775807 ; <i1> [#uses=1]
br i1 %exitcond, label %do.body, label %do.end
do.end: ; preds = %do.cond
call void @llvm.memory.barrier(i1 true, i1 true, i1 true, i1 true, i1 false)
%tmp3 = volatile load i64* getelementptr inbounds ([20 x i64]* @A, i32 0, i32 0) ; <i64> [#uses=1]
%cmp4 = icmp eq i64 %tmp3, 9223372036854775806 ; <i1> [#uses=1]
br i1 %cmp4, label %if.then, label %if.else
if.then: ; preds = %do.end
br label %return
if.else: ; preds = %do.end
br label %return
return: ; preds = %if.else, %if.then
%retval.0 = phi i32 [ 0, %if.then ], [ 1, %if.else ] ; <i32> [#uses=1]
ret i32 %retval.0
}
declare void @llvm.memory.barrier(i1, i1, i1, i1, i1) nounwind
; CHECK:for (c2=0;c2<=9223372036854775806;c2++) {
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