f287c1d315
Two lit test used overaligned i8, without the test case actually depending on i8 alignment. Change the datalayout string to use naturally aligned i8, preparing for the upcoming requirement of naturally aligned i8.
72 lines
2.2 KiB
LLVM
72 lines
2.2 KiB
LLVM
; RUN: opt %loadPolly -polly-print-scops -disable-output < %s | FileCheck %s
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;
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; void f(int *A, char N, char p) {
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; for (char i = 0; i < N; i++) {
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; A[i + 3] = 0;
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; }
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; }
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;
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; The wrap function has no inbounds GEP but the nowrap function has. Therefore,
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; we will add the assumption that i+1 won't overflow only to the former.
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;
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; CHECK: Function: wrap
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; CHECK: Invalid Context:
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; CHECK: [N] -> { : N >= 126 }
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;
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;
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; FIXME: This is a negative test as nowrap should not need an assumed context.
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; However %tmp5 in @nowrap is translated to the SCEV <3,+,1><nw><%bb2>
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; which lacks the <nsw> flags we would need to avoid runtime checks.
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;
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; CHECK: Function: nowrap
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; CHECK: Invalid Context:
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; CHECK-NOT: [N] -> { : }
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;
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target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
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define void @wrap(ptr %A, i8 %N, i8 %p) {
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bb:
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br label %bb2
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bb2: ; preds = %bb7, %bb
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%indvars.iv = phi i8 [ %indvars.iv.next, %bb7 ], [ 0, %bb ]
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%tmp3 = icmp slt i8 %indvars.iv, %N
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br i1 %tmp3, label %bb4, label %bb8
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bb4: ; preds = %bb2
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%tmp5 = add i8 %indvars.iv, 3
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%tmp6 = getelementptr i32, ptr %A, i8 %tmp5
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store i32 0, ptr %tmp6, align 4
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br label %bb7
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bb7: ; preds = %bb4
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%indvars.iv.next = add nsw nuw i8 %indvars.iv, 1
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br label %bb2
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bb8: ; preds = %bb2
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ret void
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}
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define void @nowrap(ptr %A, i8 %N, i8 %p) {
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bb:
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br label %bb2
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bb2: ; preds = %bb7, %bb
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%indvars.iv = phi i8 [ %indvars.iv.next, %bb7 ], [ 0, %bb ]
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%tmp3 = icmp slt i8 %indvars.iv, %N
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br i1 %tmp3, label %bb4, label %bb8
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bb4: ; preds = %bb2
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%tmp5 = add nsw nuw i8 %indvars.iv, 3
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%tmp6 = getelementptr inbounds i32, ptr %A, i8 %tmp5
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store i32 0, ptr %tmp6, align 4
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br label %bb7
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bb7: ; preds = %bb4
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%indvars.iv.next = add nsw nuw i8 %indvars.iv, 1
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br label %bb2
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bb8: ; preds = %bb2
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ret void
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}
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