assert(Ty->isPointerTy() && "Unexpected non-ptr");
assert(!AccessTy->isAggregateType() && "Bad stride - Not a pointer to a scalar type");
+ if (isa<ScalableVectorType>(AccessTy)) {
+ LLVM_DEBUG(dbgs() << "LAA: Bad stride - Scalable object: " << *AccessTy
+ << "\n");
+ return 0;
+ }
+
const SCEV *PtrScev = replaceSymbolicStrideSCEV(PSE, StridesMap, Ptr);
const SCEVAddRecExpr *AR = dyn_cast<SCEVAddRecExpr>(PtrScev);
}
auto &DL = Lp->getHeader()->getModule()->getDataLayout();
- int64_t Size = DL.getTypeAllocSize(AccessTy);
+ TypeSize AllocSize = DL.getTypeAllocSize(AccessTy);
+ int64_t Size = AllocSize.getFixedSize();
const APInt &APStepVal = C->getAPInt();
// Huge step value - give up.
+++ /dev/null
-; RUN: opt -loop-load-elim -mtriple=aarch64--linux-gnu -mattr=+sve < %s
-
-; This regression test is verifying that a GEP instruction performed on a
-; scalable vector does not produce a 'assumption that TypeSize is not scalable'
-; warning in the llvm::getGEPInductionOperand function.
-
-define void @get_gep_induction_operand_typesize_warning(i64 %n, <vscale x 4 x i32>* %a) {
-entry:
- br label %loop.body
-
-loop.body:
- %0 = phi i64 [ 0, %entry ], [ %1, %loop.body ]
- %idx = getelementptr <vscale x 4 x i32>, <vscale x 4 x i32>* %a, i64 %0
- store <vscale x 4 x i32> zeroinitializer, <vscale x 4 x i32>* %idx
- %1 = add i64 %0, 1
- %2 = icmp eq i64 %1, %n
- br i1 %2, label %loop.end, label %loop.body
-
-loop.end:
- ret void
-}
--- /dev/null
+; RUN: opt -loop-load-elim -mtriple=aarch64 -mattr=+sve -S -debug < %s 2>&1 | FileCheck %s
+; REQUIRES: asserts
+
+; Regression tests verifying "assumption that TypeSize is not scalable" and
+; "Invalid size request on a scalable vector." are not produced by
+; -load-loop-elim (this would cause the test to fail because opt would exit with
+; a non-zero exit status).
+
+; No output checked for this one, but causes a fatal error if the regression is present.
+
+define void @regression_test_get_gep_induction_operand_typesize_warning(i64 %n, <vscale x 4 x i32>* %a) {
+entry:
+ br label %loop.body
+
+loop.body:
+ %0 = phi i64 [ 0, %entry ], [ %1, %loop.body ]
+ %idx = getelementptr <vscale x 4 x i32>, <vscale x 4 x i32>* %a, i64 %0
+ store <vscale x 4 x i32> zeroinitializer, <vscale x 4 x i32>* %idx
+ %1 = add i64 %0, 1
+ %2 = icmp eq i64 %1, %n
+ br i1 %2, label %loop.end, label %loop.body
+
+loop.end:
+ ret void
+}
+
+; CHECK-LABEL: LAA: Found a loop in regression_test_loop_access_scalable_typesize
+; CHECK: LAA: Bad stride - Scalable object:
+define void @regression_test_loop_access_scalable_typesize(<vscale x 16 x i8>* %input_ptr) {
+entry:
+ br label %vector.body
+vector.body:
+ %ind_ptr = phi <vscale x 16 x i8>* [ %next_ptr, %vector.body ], [ %input_ptr, %entry ]
+ %ind = phi i64 [ %next, %vector.body ], [ 0, %entry ]
+ %ld = load <vscale x 16 x i8>, <vscale x 16 x i8>* %ind_ptr, align 16
+ store <vscale x 16 x i8> zeroinitializer, <vscale x 16 x i8>* %ind_ptr, align 16
+ %next_ptr = getelementptr inbounds <vscale x 16 x i8>, <vscale x 16 x i8>* %ind_ptr, i64 1
+ %next = add i64 %ind, 1
+ %cond = icmp ult i64 %next, 1024
+ br i1 %cond, label %end, label %vector.body
+end:
+ ret void
+}
+
+; CHECK-LABEL: LAA: Found a loop in regression_test_loop_access_scalable_typesize_nonscalable_object
+; CHECK: LAA: Bad stride - Scalable object:
+define void @regression_test_loop_access_scalable_typesize_nonscalable_object(i8* %input_ptr) {
+entry:
+ br label %vector.body
+vector.body:
+ %ind_ptr = phi i8* [ %next_ptr, %vector.body ], [ %input_ptr, %entry ]
+ %ind = phi i64 [ %next, %vector.body ], [ 0, %entry ]
+ %scalable_ptr = bitcast i8* %ind_ptr to <vscale x 16 x i8>*
+ %ld = load <vscale x 16 x i8>, <vscale x 16 x i8>* %scalable_ptr, align 16
+ store <vscale x 16 x i8> zeroinitializer, <vscale x 16 x i8>* %scalable_ptr, align 16
+ %next_ptr = getelementptr inbounds i8, i8* %ind_ptr, i64 1
+ %next = add i64 %ind, 1
+ %cond = icmp ult i64 %next, 1024
+ br i1 %cond, label %end, label %vector.body
+end:
+ ret void
+}