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TheRock/compiler/amd-llvm/polly/test/ScopInfo/multidim_gep_pointercast2.ll
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derek.holloway 7502bf64a4
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Flatten subprojects into a single base monorepo
2026-09-02 16:34:47 -07:00

49 lines
1.7 KiB
LLVM

; RUN: opt %loadNPMPolly '-passes=polly-custom<scops>' -polly-print-scops -disable-output < %s 2>&1 | FileCheck %s
;
; Verify that we do not use the GetElementPtr information to delinearize A
; because of the cast in-between. Use the single-dimensional modeling instead.
;
; void f(short A[][2]) {
; for (int i = 0; i < 100; i++)
; *((long *)&A[4 * i][0]) = 0;
; }
;
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
define void @f(ptr %A) {
entry:
br label %for.cond
for.cond: ; preds = %for.inc, %entry
%indvars.iv = phi i64 [ %indvars.iv.next, %for.inc ], [ 0, %entry ]
%exitcond = icmp ne i64 %indvars.iv, 100
br i1 %exitcond, label %for.body, label %for.end
for.body: ; preds = %for.cond
%tmp = shl nsw i64 %indvars.iv, 2
%arrayidx1 = getelementptr inbounds [2 x i16], ptr %A, i64 %tmp, i64 0
store i64 0, ptr %arrayidx1, align 8
br label %for.inc
for.inc: ; preds = %for.body
%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
br label %for.cond
for.end: ; preds = %for.cond
ret void
}
; CHECK: Arrays {
; CHECK-NEXT: i64 MemRef_A[*]; // Element size 8
; CHECK-NEXT: }
; CHECK: Statements {
; CHECK-NEXT: Stmt_for_body
; CHECK-NEXT: Domain :=
; CHECK-NEXT: { Stmt_for_body[i0] : 0 <= i0 <= 99 };
; CHECK-NEXT: Schedule :=
; CHECK-NEXT: { Stmt_for_body[i0] -> [i0] };
; CHECK-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 0]
; CHECK-NEXT: { Stmt_for_body[i0] -> MemRef_A[2i0] };
; CHECK-NEXT: }