llvm-project/polly/test/CodeGen/memcpy_annotations.ll
rahulana-quic e1f056f692
Reland "[polly] Port polly tests to use NPM" (#92918)
Even as the NPM has been in use by Polly for a while now, the majority
of the tests continue using the LPM passes. This patch ports the tests
to use the NPM passes (for example, by replacing a flag such as
-polly-detect with -passes=polly-detect following the NPM syntax for
specifying passes) with some exceptions for some missing features in the
new passes.

Relanding #90632.
2024-05-24 13:09:34 -07:00

42 lines
931 B
LLVM

; RUN: opt %loadNPMPolly -passes=polly-codegen -S < %s | FileCheck %s
;
; Verify that @llvm.memcpy does not get a !alias.scope annotation.
; @llvm.memcpy takes two pointers, it is ambiguous to which the
; annotation applies.
;
; for (int j = 0; j < n; j += 1) {
; memcpy(A, B, 8);
; }
;
declare void @llvm.memcpy.p0.p0.i64(ptr nocapture writeonly, ptr nocapture readonly, i64, i32, i1)
define void @func(i32 %n, ptr noalias nonnull %A, ptr noalias nonnull %B) {
entry:
br label %for
for:
%j = phi i32 [0, %entry], [%j.inc, %inc]
%j.cmp = icmp slt i32 %j, %n
br i1 %j.cmp, label %body, label %exit
body:
call void @llvm.memcpy.p0.p0.i64(ptr nonnull %A, ptr %B, i64 8, i32 4, i1 false)
br label %inc
inc:
%j.inc = add nuw nsw i32 %j, 1
br label %for
exit:
br label %return
return:
ret void
}
; CHECK-LABEL: polly.start:
; CHECK: call void @llvm.memcpy
; CHECK-NOT: !alias.scope