derek.holloway
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37 lines
1.4 KiB
LLVM
37 lines
1.4 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 4
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; RUN: llc -mtriple=aarch64 -O0 -mattr=+sme < %s | FileCheck %s
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target triple = "aarch64-linux-gnu"
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; This test checks that with only +sme (no SVE), LLVM sets up the base-pointer
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; (x19) in functions with dynamic allocas and SVE stack objects.
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define void @quux(i64 %n) "aarch64_new_za" "aarch64_pstate_sm_enabled" {
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; CHECK-LABEL: quux:
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; CHECK: // %bb.0:
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; CHECK-NEXT: stp x29, x30, [sp, #-32]! // 16-byte Folded Spill
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; CHECK-NEXT: str x19, [sp, #16] // 8-byte Spill
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; CHECK-NEXT: mov x29, sp
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; CHECK-NEXT: addvl sp, sp, #-1
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; CHECK-NEXT: mov x19, sp
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; CHECK-NEXT: .cfi_def_cfa w29, 32
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; CHECK-NEXT: .cfi_offset w19, -16
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; CHECK-NEXT: .cfi_offset w30, -24
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; CHECK-NEXT: .cfi_offset w29, -32
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; CHECK-NEXT: add x8, x0, #15
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; CHECK-NEXT: and x9, x8, #0xfffffffffffffff0
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; CHECK-NEXT: mov x8, sp
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; CHECK-NEXT: subs x8, x8, x9
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; CHECK-NEXT: mov sp, x8
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; CHECK-NEXT: // fake_use: $x8
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; CHECK-NEXT: mov sp, x29
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; CHECK-NEXT: ldr x19, [sp, #16] // 8-byte Reload
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; CHECK-NEXT: ldp x29, x30, [sp], #32 // 16-byte Folded Reload
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; CHECK-NEXT: ret
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%zpr_local = alloca <vscale x 16 x i8>
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%dyn_alloc = alloca i8, i64 %n, align 1
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call void (...) @llvm.fake.use(ptr %dyn_alloc)
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call void (...) @llvm.fake.use(ptr %zpr_local)
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ret void
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}
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