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Memtransfer: consider explicit TA from dst ptr (#2030)
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; RUN: if [ %llvmver -lt 16 ]; then %opt < %s %loadEnzyme -enzyme-preopt=false -enzyme-strict-aliasing=0 -enzyme -mem2reg -instsimplify -simplifycfg -S | FileCheck %s; fi | ||
; RUN: %opt < %s %newLoadEnzyme -enzyme-preopt=false -enzyme-strict-aliasing=0 -passes="enzyme,function(mem2reg,instsimplify,%simplifycfg)" -S | FileCheck %s | ||
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declare void @__enzyme_autodiff(...) | ||
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declare void @llvm.memcpy.p0i8.p0i8.i64(i8*, i8*, i64, i1) | ||
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define void @square(i1 %c, i8* %0, i8* %1) { | ||
entry: | ||
br i1 %c, label %run, label %end | ||
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run: | ||
call void @llvm.memcpy.p0i8.p0i8.i64(i8* "enzyme_type"="{[-1]:Pointer, [-1,0]:Float@double, [-1,8]:Float@double, [-1,16]:Float@double, [-1,24]:Float@double, [-1,32]:Float@double, [-1,40]:Float@double, [-1,48]:Float@double, [-1,56]:Float@double, [-1,64]:Float@double, [-1,72]:Float@double}" %0, i8* %1, i64 "enzyme_type"="{[-1]:Integer}" 80, i1 false) | ||
br label %end | ||
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end: | ||
ret void | ||
} | ||
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define void @dsquare(i8* %x, i8* %dx, i8* %y, i8* %dy) { | ||
entry: | ||
tail call void (...) @__enzyme_autodiff(void (i1, i8*, i8*)* nonnull @square, i1 false, metadata !"enzyme_dup", i8* %x, i8* %dx, metadata !"enzyme_dup", i8* %y, i8* %dy) | ||
ret void | ||
} | ||
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; CHECK: define internal void @diffesquare(i1 %c, i8* %0, i8* %"'", i8* %1, i8* %"'1") | ||
; CHECK-NEXT: entry: | ||
; CHECK-NEXT: br i1 %c, label %run, label %invertentry | ||
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; CHECK: run: | ||
; CHECK-NEXT: call void @llvm.memcpy.p0i8.p0i8.i64(i8* "enzyme_type"="{[-1]:Pointer, [-1,0]:Float@double, [-1,8]:Float@double, [-1,16]:Float@double, [-1,24]:Float@double, [-1,32]:Float@double, [-1,40]:Float@double, [-1,48]:Float@double, [-1,56]:Float@double, [-1,64]:Float@double, [-1,72]:Float@double}" %0, i8* %1, i64 "enzyme_type"="{[-1]:Integer}" 80, i1 false) | ||
; CHECK-NEXT: %2 = bitcast i8* %"'" to double* | ||
; CHECK-NEXT: %3 = bitcast i8* %"'1" to double* | ||
; CHECK-NEXT: br label %for.body.i | ||
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; CHECK: invertentry: | ||
; CHECK-NEXT: ret void | ||
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; CHECK: for.body.i: | ||
; CHECK-NEXT: %idx.i = phi i64 [ 0, %run ], [ %idx.next.i, %for.body.i ] | ||
; CHECK-NEXT: %dst.i.i = getelementptr inbounds double, double* %2, i64 %idx.i | ||
; CHECK-NEXT: %dst.i.l.i = load double, double* %dst.i.i, align 1 | ||
; CHECK-NEXT: store double 0.000000e+00, double* %dst.i.i, align 1 | ||
; CHECK-NEXT: %src.i.i = getelementptr inbounds double, double* %3, i64 %idx.i | ||
; CHECK-NEXT: %src.i.l.i = load double, double* %src.i.i, align 1 | ||
; CHECK-NEXT: %[[i4:.+]] = fadd fast double %src.i.l.i, %dst.i.l.i | ||
; CHECK-NEXT: store double %[[i4]], double* %src.i.i, align 1 | ||
; CHECK-NEXT: %idx.next.i = add nuw i64 %idx.i, 1 | ||
; CHECK-NEXT: %[[i5:.+]] = icmp eq i64 10, %idx.next.i | ||
; CHECK-NEXT: br i1 %[[i5]], label %invertentry, label %for.body.i | ||
; CHECK-NEXT: } |