50 lines
2.1 KiB
LLVM
50 lines
2.1 KiB
LLVM
|
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 2
|
||
|
|
; RUN: llc < %s | FileCheck %s
|
||
|
|
|
||
|
|
target triple = "aarch64"
|
||
|
|
|
||
|
|
; This function would normally scavenge a stackslot from the callee-save
|
||
|
|
; area, which would lead to spilling 's0' to that stackslot before the
|
||
|
|
; smstop and filling it with 'addvl + <offset>' after the smstop because
|
||
|
|
; the frame-pointer is not available.
|
||
|
|
; This would not be valid, since the vector-length has changed so 'addvl'
|
||
|
|
; cannot be used. This is testing that the stackslot-scavenging is disabled
|
||
|
|
; when there are any streaming-mode-changing call-sequences in the
|
||
|
|
; function.
|
||
|
|
define void @test_no_stackslot_scavenging(float %f) #0 {
|
||
|
|
; CHECK-LABEL: test_no_stackslot_scavenging:
|
||
|
|
; 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 x29, [sp, #64] // 8-byte Folded Spill
|
||
|
|
; CHECK-NEXT: stp x30, x24, [sp, #80] // 16-byte Folded Spill
|
||
|
|
; CHECK-NEXT: sub sp, sp, #16
|
||
|
|
; CHECK-NEXT: addvl sp, sp, #-1
|
||
|
|
; CHECK-NEXT: //APP
|
||
|
|
; CHECK-NEXT: //NO_APP
|
||
|
|
; CHECK-NEXT: str s0, [sp, #12] // 4-byte Folded Spill
|
||
|
|
; CHECK-NEXT: smstop sm
|
||
|
|
; CHECK-NEXT: ldr s0, [sp, #12] // 4-byte Folded Reload
|
||
|
|
; CHECK-NEXT: bl use_f
|
||
|
|
; CHECK-NEXT: smstart sm
|
||
|
|
; CHECK-NEXT: addvl sp, sp, #1
|
||
|
|
; CHECK-NEXT: add sp, sp, #16
|
||
|
|
; CHECK-NEXT: ldp x30, x24, [sp, #80] // 16-byte Folded Reload
|
||
|
|
; CHECK-NEXT: ldr x29, [sp, #64] // 8-byte Folded Reload
|
||
|
|
; CHECK-NEXT: ldp d9, d8, [sp, #48] // 16-byte Folded Reload
|
||
|
|
; CHECK-NEXT: ldp d11, d10, [sp, #32] // 16-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
|
||
|
|
%ptr = alloca <vscale x 16 x i8>
|
||
|
|
call void asm sideeffect "", "~{x24}"() nounwind
|
||
|
|
call void @use_f(float %f)
|
||
|
|
ret void
|
||
|
|
}
|
||
|
|
|
||
|
|
declare void @use_f(float)
|
||
|
|
|
||
|
|
attributes #0 = { nounwind "target-features"="+sme" "aarch64_pstate_sm_enabled" }
|