2016-02-22 03:13:19 +08:00
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; RUN: opt %loadPolly -basicaa -polly-allow-differing-element-types -polly-scops -analyze < %s | FileCheck %s
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; RUN: opt %loadPolly -S -basicaa -polly-allow-differing-element-types -polly-codegen < %s | FileCheck --check-prefix=IR %s
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;
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; CHECK: Arrays {
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; CHECK-NEXT: i8 MemRef_A[*]; // Element size 1
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; CHECK-NEXT: i8 MemRef_B[*]; // Element size 1
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; CHECK-NEXT: }
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; CHECK: Statements {
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; CHECK-NEXT: Stmt_for_body3
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; CHECK-NEXT: Domain :=
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; CHECK-NEXT: { Stmt_for_body3[i0, i1] : 0 <= i0 <= 1023 and 0 <= i1 <= 1023 };
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; CHECK-NEXT: Schedule :=
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; CHECK-NEXT: { Stmt_for_body3[i0, i1] -> [i0, i1] };
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; CHECK-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 0]
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; CHECK-NEXT: { Stmt_for_body3[i0, i1] -> MemRef_A[o0] : -16 <= o0 <= 20 };
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; CHECK-NEXT: ReadAccess := [Reduction Type: NONE] [Scalar: 0]
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; CHECK-NEXT: { Stmt_for_body3[i0, i1] -> MemRef_B[o0] : 64 <= o0 <= 100 };
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;
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; IR: polly.loop_preheader:
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; IR: %[[r1:[a-zA-Z0-9]*]] = getelementptr i32, i32* %A, i64 -4
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; IR: %[[r2:[a-zA-Z0-9]*]] = bitcast i32* %scevgep to i8*
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; IR: %[[r3:[a-zA-Z0-9]*]] = getelementptr i64, i64* %B, i64 8
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; IR: %[[r4:[a-zA-Z0-9]*]] = bitcast i64* %scevgep8 to i8*
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;
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; IR: polly.stmt.for.body3:
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Change memcpy/memove/memset to have dest and source alignment attributes (Step 1).
Summary:
Upstream LLVM is changing the the prototypes of the @llvm.memcpy/memmove/memset
intrinsics. This change updates the polly tests for this change.
The @llvm.memcpy/memmove/memset intrinsics currently have an explicit argument
which is required to be a constant integer. It represents the alignment of the
dest (and source), and so must be the minimum of the actual alignment of the
two.
This change removes the alignment argument in favour of placing the alignment
attribute on the source and destination pointers of the memory intrinsic call.
For example, code which used to read:
call void @llvm.memcpy.p0i8.p0i8.i32(i8* %dest, i8* %src, i32 100, i32 4, i1 false)
will now read
call void @llvm.memcpy.p0i8.p0i8.i32(i8* align 4 %dest, i8* align 4 %src, i32 100, i1 false)
At this time the source and destination alignments must be the same (Step 1).
Step 2 of the change, to be landed shortly, will relax that contraint and allow
the source and destination to have different alignments.
llvm-svn: 322963
2018-01-20 01:12:48 +08:00
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; IR: call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 4 %[[r2]], i8* align 4 %[[r4]], i64 37, i1 false)
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2016-02-22 03:13:19 +08:00
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;
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;
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; #include <string.h>
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;
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; void jd(int *restrict A, long *restrict B) {
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; for (int i = 0; i < 1024; i++)
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; for (int j = 0; j < 1024; j++)
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; memcpy(A - 4, B + 8, 37);
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; }
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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 @jd(i32* noalias %A, i64* noalias %B) {
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entry:
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br label %for.cond
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for.cond: ; preds = %for.inc5, %entry
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%i.0 = phi i32 [ 0, %entry ], [ %inc6, %for.inc5 ]
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%exitcond1 = icmp ne i32 %i.0, 1024
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br i1 %exitcond1, label %for.body, label %for.end7
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for.body: ; preds = %for.cond
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br label %for.cond1
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for.cond1: ; preds = %for.inc, %for.body
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%j.0 = phi i32 [ 0, %for.body ], [ %inc, %for.inc ]
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%exitcond = icmp ne i32 %j.0, 1024
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br i1 %exitcond, label %for.body3, label %for.end
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for.body3: ; preds = %for.cond1
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%add.ptr = getelementptr inbounds i32, i32* %A, i64 -4
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%tmp = bitcast i32* %add.ptr to i8*
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%add.ptr4 = getelementptr inbounds i64, i64* %B, i64 8
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%tmp2 = bitcast i64* %add.ptr4 to i8*
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call void @llvm.memcpy.p0i8.p0i8.i64(i8* %tmp, i8* %tmp2, i64 37, i32 4, i1 false)
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br label %for.inc
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for.inc: ; preds = %for.body3
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%inc = add nsw i32 %j.0, 1
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br label %for.cond1
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for.end: ; preds = %for.cond1
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br label %for.inc5
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for.inc5: ; preds = %for.end
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%inc6 = add nsw i32 %i.0, 1
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br label %for.cond
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for.end7: ; preds = %for.cond
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ret void
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}
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declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture, i8* nocapture readonly, i64, i32, i1) #1
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