forked from OSchip/llvm-project
63 lines
2.5 KiB
LLVM
63 lines
2.5 KiB
LLVM
; RUN: opt -loop-load-elim -mtriple=aarch64 -mattr=+sve -S -debug < %s 2>&1 | FileCheck %s
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; REQUIRES: asserts
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; Regression tests verifying "assumption that TypeSize is not scalable" and
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; "Invalid size request on a scalable vector." are not produced by
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; -load-loop-elim (this would cause the test to fail because opt would exit with
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; a non-zero exit status).
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; No output checked for this one, but causes a fatal error if the regression is present.
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define void @regression_test_get_gep_induction_operand_typesize_warning(i64 %n, <vscale x 4 x i32>* %a) {
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entry:
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br label %loop.body
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loop.body:
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%0 = phi i64 [ 0, %entry ], [ %1, %loop.body ]
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%idx = getelementptr <vscale x 4 x i32>, <vscale x 4 x i32>* %a, i64 %0
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store <vscale x 4 x i32> zeroinitializer, <vscale x 4 x i32>* %idx
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%1 = add i64 %0, 1
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%2 = icmp eq i64 %1, %n
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br i1 %2, label %loop.end, label %loop.body
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loop.end:
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ret void
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}
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; CHECK-LABEL: LAA: Found a loop in regression_test_loop_access_scalable_typesize
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; CHECK: LAA: Bad stride - Scalable object:
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define void @regression_test_loop_access_scalable_typesize(<vscale x 16 x i8>* %input_ptr) {
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entry:
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br label %vector.body
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vector.body:
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%ind_ptr = phi <vscale x 16 x i8>* [ %next_ptr, %vector.body ], [ %input_ptr, %entry ]
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%ind = phi i64 [ %next, %vector.body ], [ 0, %entry ]
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%ld = load <vscale x 16 x i8>, <vscale x 16 x i8>* %ind_ptr, align 16
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store <vscale x 16 x i8> zeroinitializer, <vscale x 16 x i8>* %ind_ptr, align 16
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%next_ptr = getelementptr inbounds <vscale x 16 x i8>, <vscale x 16 x i8>* %ind_ptr, i64 1
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%next = add i64 %ind, 1
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%cond = icmp ult i64 %next, 1024
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br i1 %cond, label %end, label %vector.body
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end:
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ret void
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}
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; CHECK-LABEL: LAA: Found a loop in regression_test_loop_access_scalable_typesize_nonscalable_object
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; CHECK: LAA: Bad stride - Scalable object:
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define void @regression_test_loop_access_scalable_typesize_nonscalable_object(i8* %input_ptr) {
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entry:
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br label %vector.body
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vector.body:
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%ind_ptr = phi i8* [ %next_ptr, %vector.body ], [ %input_ptr, %entry ]
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%ind = phi i64 [ %next, %vector.body ], [ 0, %entry ]
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%scalable_ptr = bitcast i8* %ind_ptr to <vscale x 16 x i8>*
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%ld = load <vscale x 16 x i8>, <vscale x 16 x i8>* %scalable_ptr, align 16
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store <vscale x 16 x i8> zeroinitializer, <vscale x 16 x i8>* %scalable_ptr, align 16
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%next_ptr = getelementptr inbounds i8, i8* %ind_ptr, i64 1
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%next = add i64 %ind, 1
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%cond = icmp ult i64 %next, 1024
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br i1 %cond, label %end, label %vector.body
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end:
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ret void
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}
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