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; RUN: opt %loadPolly -polly-parallel -polly-print-ast -disable-output < %s | FileCheck %s -check-prefix=AST
; RUN: opt %loadPolly -polly-parallel -polly-codegen -S < %s | FileCheck %s -check-prefix=IR
;
; float A[100];
;
; void loop_references_outer_ids(long n) {
; for (long i = 0; i < 100; i++)
; for (long j = 0; j < 100; j++)
; for (long k = 0; k < n + i; k++)
; A[j] += i + j + k;
; }
; In this test case we verify that the j-loop is generated as OpenMP parallel
; loop and that the values of 'i' and 'n', needed in the loop bounds of the
; k-loop, are correctly passed to the subfunction.
; AST: #pragma minimal dependence distance: 1
; AST: for (int c0 = max(0, -n + 1); c0 <= 99; c0 += 1)
; AST: #pragma omp parallel for
; AST: for (int c1 = 0; c1 <= 99; c1 += 1)
; AST: #pragma minimal dependence distance: 1
; AST: for (int c2 = 0; c2 < n + c0; c2 += 1)
; AST: Stmt_for_body6(c0, c1, c2);
; IR: %polly.par.userContext = alloca { i64, i64 }
; IR: %[[R1:[0-9a-z.]+]] = getelementptr inbounds { i64, i64 }, ptr %polly.par.userContext, i32 0, i32 0
; IR-NEXT: store i64 %n, ptr %[[R1]]
; IR-NEXT: %[[R2:[0-9a-z.]+]] = getelementptr inbounds { i64, i64 }, ptr %polly.par.userContext, i32 0, i32 1
; IR-NEXT: store i64 %polly.indvar, ptr %[[R2]]
; IR-LABEL: @loop_references_outer_ids_polly_subfn(ptr %polly.par.userContext)
; IR: %[[R3:[0-9a-z.]+]] = getelementptr inbounds { i64, i64 }, ptr %polly.par.userContext, i32 0, i32 0
; IR-NEXT: %[[R4:[0-9a-z.]+]] = load i64, ptr %[[R3]]
; IR-NEXT: %[[R5:[0-9a-z.]+]] = getelementptr inbounds { i64, i64 }, ptr %polly.par.userContext, i32 0, i32 1
; IR-NEXT: %[[R6:[0-9a-z.]+]] = load i64, ptr %[[R5]]
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
@A = common global [100 x float] zeroinitializer, align 16
define void @loop_references_outer_ids(i64 %n) {
entry:
br label %for.cond
for.cond: ; preds = %for.inc03, %entry
%i.0 = phi i64 [ 0, %entry ], [ %inc04, %for.inc03 ]
%exitcond1 = icmp ne i64 %i.0, 100
br i1 %exitcond1, label %for.body, label %for.end15
for.body: ; preds = %for.cond
br label %for.cond1
for.cond1: ; preds = %for.inc00, %for.body
%j.0 = phi i64 [ 0, %for.body ], [ %inc01, %for.inc00 ]
%exitcond = icmp ne i64 %j.0, 100
br i1 %exitcond, label %for.body3, label %for.end12
for.body3: ; preds = %for.cond1
br label %for.cond4
for.cond4: ; preds = %for.inc, %for.body3
%k.0 = phi i64 [ 0, %for.body3 ], [ %inc, %for.inc ]
%add = add nsw i64 %i.0, %n
%cmp5 = icmp slt i64 %k.0, %add
br i1 %cmp5, label %for.body6, label %for.end
for.body6: ; preds = %for.cond4
%add7 = add nsw i64 %i.0, %j.0
%add8 = add nsw i64 %add7, %k.0
%conv = sitofp i64 %add8 to float
%arrayidx = getelementptr inbounds [100 x float], ptr @A, i64 0, i64 %j.0
%tmp = load float, ptr %arrayidx, align 4
%add9 = fadd float %tmp, %conv
store float %add9, ptr %arrayidx, align 4
br label %for.inc
for.inc: ; preds = %for.body6
%inc = add nsw i64 %k.0, 1
br label %for.cond4
for.end: ; preds = %for.cond4
br label %for.inc00
for.inc00: ; preds = %for.end
%inc01 = add nsw i64 %j.0, 1
br label %for.cond1
for.end12: ; preds = %for.cond1
br label %for.inc03
for.inc03: ; preds = %for.end12
%inc04 = add nsw i64 %i.0, 1
br label %for.cond
for.end15: ; preds = %for.cond
ret void
}
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