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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 2
; RUN: llc < %s | FileCheck %s
; Verify that the following code can be compiled without +sme, because if the
; call is not entered in streaming-SVE mode at runtime, the codepath leading
; to the smstop/smstart pair will not be executed either.
target triple = "aarch64"
define void @streaming_compatible() #0 {
; CHECK-LABEL: streaming_compatible:
; CHECK: // %bb.0:
; CHECK-NEXT: stp d15, d14, [sp, #-96]! // 16-byte Folded Spill
; CHECK-NEXT: stp d13, d12, [sp, #16] // 16-byte Folded Spill
; CHECK-NEXT: stp d11, d10, [sp, #32] // 16-byte Folded Spill
; CHECK-NEXT: stp d9, d8, [sp, #48] // 16-byte Folded Spill
; CHECK-NEXT: str x30, [sp, #64] // 8-byte Folded Spill
; CHECK-NEXT: bl __arm_get_current_vg
; CHECK-NEXT: stp x0, x19, [sp, #72] // 16-byte Folded Spill
; CHECK-NEXT: bl __arm_sme_state
; CHECK-NEXT: and x19, x0, #0x1
; CHECK-NEXT: tbz w19, #0, .LBB0_2
; CHECK-NEXT: // %bb.1:
; CHECK-NEXT: smstop sm
; CHECK-NEXT: .LBB0_2:
; CHECK-NEXT: bl non_streaming
; CHECK-NEXT: tbz w19, #0, .LBB0_4
; CHECK-NEXT: // %bb.3:
; CHECK-NEXT: smstart sm
; CHECK-NEXT: .LBB0_4:
; CHECK-NEXT: ldp d9, d8, [sp, #48] // 16-byte Folded Reload
; CHECK-NEXT: ldr x19, [sp, #80] // 8-byte Folded Reload
; CHECK-NEXT: ldp d11, d10, [sp, #32] // 16-byte Folded Reload
; CHECK-NEXT: ldr x30, [sp, #64] // 8-byte Folded Reload
; CHECK-NEXT: ldp d13, d12, [sp, #16] // 16-byte Folded Reload
; CHECK-NEXT: ldp d15, d14, [sp], #96 // 16-byte Folded Reload
; CHECK-NEXT: ret
call void @non_streaming()
ret void
}
declare void @non_streaming()
; Verify that COALESCER_BARRIER is also supported without +sme.
define void @streaming_compatible_arg(float %f) #0 {
; CHECK-LABEL: streaming_compatible_arg:
; CHECK: // %bb.0:
; CHECK-NEXT: sub sp, sp, #112
; CHECK-NEXT: stp d15, d14, [sp, #16] // 16-byte Folded Spill
; CHECK-NEXT: stp d13, d12, [sp, #32] // 16-byte Folded Spill
; CHECK-NEXT: stp d11, d10, [sp, #48] // 16-byte Folded Spill
; CHECK-NEXT: stp d9, d8, [sp, #64] // 16-byte Folded Spill
; CHECK-NEXT: str x30, [sp, #80] // 8-byte Folded Spill
; CHECK-NEXT: bl __arm_get_current_vg
; CHECK-NEXT: stp x0, x19, [sp, #88] // 16-byte Folded Spill
; CHECK-NEXT: str s0, [sp, #12] // 4-byte Folded Spill
; CHECK-NEXT: bl __arm_sme_state
; CHECK-NEXT: and x19, x0, #0x1
; CHECK-NEXT: tbz w19, #0, .LBB1_2
; CHECK-NEXT: // %bb.1:
; CHECK-NEXT: smstop sm
; CHECK-NEXT: .LBB1_2:
; CHECK-NEXT: ldr s0, [sp, #12] // 4-byte Folded Reload
; CHECK-NEXT: bl non_streaming
; CHECK-NEXT: tbz w19, #0, .LBB1_4
; CHECK-NEXT: // %bb.3:
; CHECK-NEXT: smstart sm
; CHECK-NEXT: .LBB1_4:
; CHECK-NEXT: ldp d9, d8, [sp, #64] // 16-byte Folded Reload
; CHECK-NEXT: ldr x19, [sp, #96] // 8-byte Folded Reload
; CHECK-NEXT: ldp d11, d10, [sp, #48] // 16-byte Folded Reload
; CHECK-NEXT: ldr x30, [sp, #80] // 8-byte Folded Reload
; CHECK-NEXT: ldp d13, d12, [sp, #32] // 16-byte Folded Reload
; CHECK-NEXT: ldp d15, d14, [sp, #16] // 16-byte Folded Reload
; CHECK-NEXT: add sp, sp, #112
; CHECK-NEXT: ret
call void @non_streaming(float %f)
ret void
}
attributes #0 = { nounwind "aarch64_pstate_sm_compatible" }
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