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TheRock/compiler/amd-llvm/llvm/test/Transforms/LoopVectorize/vscale-cost.ll
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derek.holloway 7502bf64a4
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2026-09-02 16:34:47 -07:00

37 lines
1.6 KiB
LLVM

; NOTE: Assertions have been autogenerated by utils/update_analyze_test_checks.py UTC_ARGS: --filter "Cost.*EMIT-SCALAR.*vscale" --version 6
; REQUIRES: asserts
; RUN: opt %s -passes=loop-vectorize -force-vector-interleave=1 -force-vector-width=4 -enable-interleaved-mem-accesses \
; RUN: -force-target-supports-scalable-vectors=true -scalable-vectorization=preferred -disable-output \
; RUN: -debug-only=loop-vectorize -S 2>&1 | FileCheck %s
define void @scalablevf(ptr %dst.start, i8 %a, i8 %b) {
; CHECK-LABEL: 'scalablevf'
; CHECK: Cost of 0 for VF vscale x 4: EMIT-SCALAR vp<[[VP2:%[0-9]+]]> = vscale i64
; CHECK: Cost of 0 for VF vscale x 4: EMIT-SCALAR vp<[[VP2]]> = vscale i64
;
entry:
br label %loop
loop:
%iv = phi i64 [ 0, %entry ], [ %iv.next, %loop ]
%dst = phi ptr [ %dst.start, %entry ], [ %dst.next, %loop ]
%dst.next = getelementptr inbounds nuw i8, ptr %dst, i64 4
%load.dst.0 = load i8, ptr %dst, align 1
store i8 %load.dst.0, ptr %dst, align 1
%gep.dst.1 = getelementptr inbounds nuw i8, ptr %dst, i64 1
%load.dst.1 = load i8, ptr %gep.dst.1, align 1
store i8 %load.dst.1, ptr %gep.dst.1, align 1
%gep.dst.2 = getelementptr inbounds nuw i8, ptr %dst, i64 2
%load.dst.2 = load i8, ptr %gep.dst.2, align 1
store i8 %load.dst.2, ptr %gep.dst.2, align 1
%gep.dst.3 = getelementptr inbounds nuw i8, ptr %dst, i64 3
%load.dst.3 = load i8, ptr %gep.dst.3, align 1
store i8 %load.dst.3, ptr %gep.dst.3, align 1
%iv.next = add i64 %iv, 4
%exit.cond = icmp eq i64 %iv.next, 256
br i1 %exit.cond, label %exit, label %loop
exit:
ret void
}