b4916918e5
If we've got an SCEVPtrToIntExpr(op), where op is not an SCEVUnknown, we want to sink the SCEVPtrToIntExpr into an operand, so that the operation is performed on integers, and eventually we end up with just an `SCEVPtrToIntExpr(SCEVUnknown)`. Reviewed By: mkazantsev Differential Revision: https://reviews.llvm.org/D89692
74 lines
3.1 KiB
LLVM
74 lines
3.1 KiB
LLVM
; RUN: opt %loadPolly -analyze -polly-scops < %s | FileCheck %s
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; RUN: opt %loadPolly -S -polly-codegen < %s | FileCheck %s --check-prefix=IR
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;
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; void f(long *A, long *ptr, long val) {
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; for (long i = 0; i < 100; i++) {
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; long ptrV = ((long)(ptr + 1)) + 1;
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; long valP = (long)(((long *)(val + 1)) + 1);
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; A[ptrV] += A[valP];
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; }
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; }
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;
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; CHECK: ReadAccess := [Reduction Type: NONE] [Scalar: 0]
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; CHECK-NEXT: [val, ptr] -> { Stmt_for_body[i0] -> MemRef_A[9 + val] };
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; CHECK-NEXT: ReadAccess := [Reduction Type: +] [Scalar: 0]
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; CHECK-NEXT: [val, ptr] -> { Stmt_for_body[i0] -> MemRef_A[9 + ptr] };
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; CHECK-NEXT: MustWriteAccess := [Reduction Type: +] [Scalar: 0]
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; CHECK-NEXT: [val, ptr] -> { Stmt_for_body[i0] -> MemRef_A[9 + ptr] };
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;
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; IR: polly.stmt.for.body:
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; IR-NEXT: %p_tmp1 = inttoptr i64 %14 to i64*
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; IR-NEXT: %p_add.ptr2 = getelementptr inbounds i64, i64* %p_tmp1, i64 1
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; IR-NEXT: %p_tmp2 = ptrtoint i64* %p_add.ptr2 to i64
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; IR-NEXT: %p_arrayidx = getelementptr inbounds i64, i64* %A, i64 %p_tmp2
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; IR-NEXT: %tmp3_p_scalar_ = load i64, i64* %p_arrayidx, align 8, !alias.scope !0, !noalias !2
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; IR-NEXT: %tmp4_p_scalar_ = load i64, i64* %scevgep, align 8, !alias.scope !0, !noalias !2
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; IR-NEXT: %p_add4 = add nsw i64 %tmp4_p_scalar_, %tmp3_p_scalar_
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; IR-NEXT: store i64 %p_add4, i64* %scevgep, align 8, !alias.scope !0, !noalias !2
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; IR-NEXT: %polly.indvar_next = add nsw i64 %polly.indvar, 1
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; IR-NEXT: %polly.loop_cond = icmp sle i64 %polly.indvar_next, 99
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; IR-NEXT: br i1 %polly.loop_cond, label %polly.loop_header, label %polly.loop_exit
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;
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; IR: polly.loop_preheader:
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; IR-NEXT: %14 = add i64 %val, 1
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; IR-NEXT: %15 = ptrtoint i64* %ptr to i32
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; IR-NEXT: %16 = add i32 %15, 9
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; IR-NEXT: %scevgep = getelementptr i64, i64* %A, i32 %16
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; IR-NEXT: br label %polly.loop_header
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;
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target datalayout = "e-p:32:32:32-m:e-i64:64-f80:128-n8:16:32:64-S128"
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define void @f(i64* %A, i64* %ptr, i64 %val) {
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entry:
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br label %for.cond
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for.cond: ; preds = %for.inc, %entry
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%i.0 = phi i64 [ 0, %entry ], [ %inc, %for.inc ]
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%exitcond = icmp ne i64 %i.0, 100
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br i1 %exitcond, label %for.body, label %for.end
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for.body: ; preds = %for.cond
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%add.ptr = getelementptr inbounds i64, i64* %ptr, i64 1
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%tmp = ptrtoint i64* %add.ptr to i64
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%add = add nsw i64 %tmp, 1
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%add1 = add nsw i64 %val, 1
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%tmp1 = inttoptr i64 %add1 to i64*
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%add.ptr2 = getelementptr inbounds i64, i64* %tmp1, i64 1
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%tmp2 = ptrtoint i64* %add.ptr2 to i64
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%arrayidx = getelementptr inbounds i64, i64* %A, i64 %tmp2
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%tmp3 = load i64, i64* %arrayidx
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%arrayidx3 = getelementptr inbounds i64, i64* %A, i64 %add
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%tmp4 = load i64, i64* %arrayidx3
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%add4 = add nsw i64 %tmp4, %tmp3
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store i64 %add4, i64* %arrayidx3
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br label %for.inc
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for.inc: ; preds = %for.body
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%inc = add nuw nsw i64 %i.0, 1
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br label %for.cond
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for.end: ; preds = %for.cond
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ret void
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}
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