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; RUN: opt %loadPolly -basicaa -polly-ast -polly-ast-detect-parallel -analyze < %s | FileCheck %s
; Verify that we actually detect this loop as the innermost loop even though
; there is a conditional inside.
; CHECK: #pragma simd
; CHECK: for (int c0 = 0; c0 <= 1023; c0 += 1) {
; CHECK: if (c0 >= m + 1025) {
; CHECK: Stmt_if_else(c0);
; CHECK: } else
; CHECK: Stmt_if_then(c0);
; CHECK: Stmt_if_end(c0);
; CHECK: }
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"
@A = common global [1024 x i32] zeroinitializer, align 16
@B = common global [1024 x i32] zeroinitializer, align 16
define void @loop_with_condition(i32 %m) nounwind {
entry:
fence seq_cst
%tmp = sub i32 0, %m
%tmp1 = zext i32 %tmp to i64
br label %for.cond
for.cond: ; preds = %for.inc, %entry
%indvar = phi i64 [ %indvar.next, %for.inc ], [ 0, %entry ]
%arrayidx = getelementptr [1024 x i32], [1024 x i32]* @A, i64 0, i64 %indvar
%arrayidx10 = getelementptr [1024 x i32], [1024 x i32]* @B, i64 0, i64 %indvar
%tmp2 = add i64 %tmp1, %indvar
%sub = trunc i64 %tmp2 to i32
%exitcond = icmp ne i64 %indvar, 1024
br i1 %exitcond, label %for.body, label %for.end
for.body: ; preds = %for.cond
%cmp3 = icmp sle i32 %sub, 1024
br i1 %cmp3, label %if.then, label %if.else
if.then: ; preds = %for.body
store i32 1, i32* %arrayidx
br label %if.end
if.else: ; preds = %for.body
store i32 2, i32* %arrayidx
br label %if.end
if.end: ; preds = %if.else, %if.then
store i32 3, i32* %arrayidx10
br label %for.inc
for.inc: ; preds = %if.end
%indvar.next = add i64 %indvar, 1
br label %for.cond
for.end: ; preds = %for.cond
fence seq_cst
ret void
}
define i32 @main() nounwind {
entry:
call void @llvm.memset.p0i8.i64(i8* bitcast ([1024 x i32]* @A to i8*), i8 0, i64 4096, i32 1, i1 false)
call void @llvm.memset.p0i8.i64(i8* bitcast ([1024 x i32]* @B to i8*), i8 0, i64 4096, i32 1, i1 false)
call void @loop_with_condition(i32 5)
br label %for.cond
for.cond: ; preds = %for.inc, %entry
%indvar1 = phi i64 [ %indvar.next2, %for.inc ], [ 0, %entry ]
%arrayidx = getelementptr [1024 x i32], [1024 x i32]* @B, i64 0, i64 %indvar1
%i.0 = trunc i64 %indvar1 to i32
%cmp = icmp slt i32 %i.0, 1024
br i1 %cmp, label %for.body, label %for.end
for.body: ; preds = %for.cond
%tmp3 = load i32, i32* %arrayidx
%cmp4 = icmp ne i32 %tmp3, 3
br i1 %cmp4, label %if.then, label %if.end
if.then: ; preds = %for.body
br label %return
if.end: ; preds = %for.body
br label %for.inc
for.inc: ; preds = %if.end
%indvar.next2 = add i64 %indvar1, 1
br label %for.cond
for.end: ; preds = %for.cond
br label %for.cond6
for.cond6: ; preds = %for.inc12, %for.end
%indvar = phi i64 [ %indvar.next, %for.inc12 ], [ 0, %for.end ]
%arrayidx15 = getelementptr [1024 x i32], [1024 x i32]* @A, i64 0, i64 %indvar
%i.1 = trunc i64 %indvar to i32
%cmp8 = icmp slt i32 %i.1, 1024
br i1 %cmp8, label %for.body9, label %for.end35
for.body9: ; preds = %for.cond6
br i1 true, label %land.lhs.true, label %if.else
land.lhs.true: ; preds = %for.body9
%tmp16 = load i32, i32* %arrayidx15
%cmp17 = icmp ne i32 %tmp16, 1
br i1 %cmp17, label %if.then18, label %if.else
if.then18: ; preds = %land.lhs.true
br label %return
if.else: ; preds = %land.lhs.true, %for.body9
br i1 false, label %land.lhs.true23, label %if.end30
land.lhs.true23: ; preds = %if.else
%tmp27 = load i32, i32* %arrayidx15
%cmp28 = icmp ne i32 %tmp27, 2
br i1 %cmp28, label %if.then29, label %if.end30
if.then29: ; preds = %land.lhs.true23
br label %return
if.end30: ; preds = %land.lhs.true23, %if.else
br label %if.end31
if.end31: ; preds = %if.end30
br label %for.inc12
for.inc12: ; preds = %if.end31
%indvar.next = add i64 %indvar, 1
br label %for.cond6
for.end35: ; preds = %for.cond6
br label %return
return: ; preds = %for.end35, %if.then29, %if.then18, %if.then
%retval.0 = phi i32 [ 1, %if.then ], [ 1, %if.then18 ], [ 1, %if.then29 ], [ 0, %for.end35 ]
ret i32 %retval.0
}
declare void @llvm.memset.p0i8.i64(i8* nocapture, i8, i64, i32, i1) nounwind
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