forked from OSchip/llvm-project
96 lines
3.2 KiB
LLVM
96 lines
3.2 KiB
LLVM
; RUN: opt %loadPolly -polly-scops \
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; RUN: -analyze < %s | FileCheck %s --check-prefix=SCOP
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; RUN: opt %loadPolly -polly-codegen-ppcg \
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; RUN: -S -polly-acc-codegen-managed-memory \
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; RUN: -polly-acc-rewrite-managed-memory < %s | FileCheck %s --check-prefix=HOST-IR
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;
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; REQUIRES: pollyacc
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;
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; Check that we can correctly rewrite `malloc` to `polly_mallocManaged`, and
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; `free` to `polly_freeManaged` with the `polly-acc-rewrite-managed-memory`
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; pass, even inside `constantExpr`. This is necessary because a cookie cutter
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; Inst->replaceUsesOfWith(...) call does not actually work, because this does
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; not replace the instruction within a ConstantExpr.
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;
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; #include <memory.h>
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;
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; static const int N = 100;
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; int* f(int *ToFree) {
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; free(ToFree);
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; int *A = (int *)malloc(sizeof(int) * N);
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; for(int i = 0; i < N; i++) {
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; A[i] = 42;
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; }
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; return A;
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;
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; }
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; SCOP: Function: f
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; SCOP-NEXT: Region: %for.body---%for.end
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; SCOP-NEXT: Max Loop Depth: 1
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; SCOP: Arrays {
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; SCOP-NEXT: i32 MemRef_tmp[*]; // Element size 4
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; SCOP-NEXT: }
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; // Check that polly_mallocManaged is declared and used correctly.
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; HOST-IR: %1 = bitcast i8* (i64)* @polly_mallocManaged to i32* (i64)*
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; HOST-IR: declare i8* @polly_mallocManaged(i64)
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; // Check that polly_freeManaged is declared and used correctly.
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; HOST-IR call void @polly_freeManaged(i8* %toFree)
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; HOST-IR: declare void @polly_freeManaged(i8*)
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; // Check that we remove the original malloc,free
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; HOST-IR-NOT: declare i8* @malloc(i64)
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; HOST-IR-NOT: declare void @free(i8*)
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target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-apple-macosx10.12.0"
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define i32* @f(i32 *%toFree) {
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entry:
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; Free inside bitcast
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call void bitcast (void (i8*)* @free to void (i32 *)*) (i32 * %toFree)
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br label %entry.split
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entry.split: ; preds = %entry
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; malloc inside bitcast.
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%tmp = call i32* bitcast (i8* (i64)* @malloc to i32* (i64)*) (i64 400)
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br label %for.body
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for.body: ; preds = %entry.split, %for.body
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%indvars.iv1 = phi i64 [ 0, %entry.split ], [ %indvars.iv.next, %for.body ]
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%arrayidx = getelementptr inbounds i32, i32* %tmp, i64 %indvars.iv1
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store i32 42, i32* %arrayidx, align 4, !tbaa !3
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%indvars.iv.next = add nuw nsw i64 %indvars.iv1, 1
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%exitcond = icmp eq i64 %indvars.iv.next, 100
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br i1 %exitcond, label %for.end, label %for.body
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for.end: ; preds = %for.body
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ret i32* %tmp
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}
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; Function Attrs: argmemonly nounwind
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declare void @llvm.lifetime.start.p0i8(i64, i8* nocapture) #0
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declare i8* @malloc(i64)
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declare void @free(i8*)
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; Function Attrs: argmemonly nounwind
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declare void @llvm.lifetime.end.p0i8(i64, i8* nocapture) #0
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attributes #0 = { argmemonly nounwind }
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!llvm.module.flags = !{!0, !1}
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!llvm.ident = !{!2}
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!0 = !{i32 1, !"wchar_size", i32 4}
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!1 = !{i32 7, !"PIC Level", i32 2}
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!2 = !{!"clang version 6.0.0 (http://llvm.org/git/clang.git 6660f0d30ef23b3142a6b08f9f41aad3d47c084f) (http://llvm.org/git/llvm.git 052dd78cb30f77a05dc8bb06b851402c4b6c6587)"}
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!3 = !{!4, !4, i64 0}
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!4 = !{!"int", !5, i64 0}
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!5 = !{!"omnipotent char", !6, i64 0}
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!6 = !{!"Simple C/C++ TBAA"}
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