42 lines
1.6 KiB
LLVM
42 lines
1.6 KiB
LLVM
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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 2
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; RUN: llc < %s | FileCheck %s
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; Verify that the following code can be compiled without +sme, because if the
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; call is not entered in streaming-SVE mode at runtime, the codepath leading
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; to the smstop/smstart pair will not be executed either.
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target triple = "aarch64"
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define void @streaming_compatible() #0 {
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; CHECK-LABEL: streaming_compatible:
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; CHECK: // %bb.0:
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; CHECK-NEXT: stp d15, d14, [sp, #-80]! // 16-byte Folded Spill
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; CHECK-NEXT: stp d13, d12, [sp, #16] // 16-byte Folded Spill
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; CHECK-NEXT: stp d11, d10, [sp, #32] // 16-byte Folded Spill
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; CHECK-NEXT: stp d9, d8, [sp, #48] // 16-byte Folded Spill
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; CHECK-NEXT: stp x30, x19, [sp, #64] // 16-byte Folded Spill
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; CHECK-NEXT: bl __arm_sme_state
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; CHECK-NEXT: and x19, x0, #0x1
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; CHECK-NEXT: tbz w19, #0, .LBB0_2
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; CHECK-NEXT: // %bb.1:
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; CHECK-NEXT: smstop sm
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; CHECK-NEXT: .LBB0_2:
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; CHECK-NEXT: bl non_streaming
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; CHECK-NEXT: tbz w19, #0, .LBB0_4
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; CHECK-NEXT: // %bb.3:
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; CHECK-NEXT: smstart sm
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; CHECK-NEXT: .LBB0_4:
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; CHECK-NEXT: ldp x30, x19, [sp, #64] // 16-byte Folded Reload
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; CHECK-NEXT: ldp d9, d8, [sp, #48] // 16-byte Folded Reload
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; CHECK-NEXT: ldp d11, d10, [sp, #32] // 16-byte Folded Reload
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; CHECK-NEXT: ldp d13, d12, [sp, #16] // 16-byte Folded Reload
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; CHECK-NEXT: ldp d15, d14, [sp], #80 // 16-byte Folded Reload
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; CHECK-NEXT: ret
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call void @non_streaming()
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ret void
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}
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declare void @non_streaming()
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attributes #0 = { nounwind "aarch64_pstate_sm_compatible" }
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