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28 lines
964 B
LLVM
28 lines
964 B
LLVM
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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc -O0 -mtriple=aarch64-unknown-linux-gnu < %s | FileCheck %s
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; GlobalISel cannot legalize this phi, so we fall back to SDAG.
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define void @test() nounwind {
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; CHECK-LABEL: test:
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; CHECK: // %bb.0: // %entry
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; CHECK-NEXT: sub sp, sp, #16 // =16
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; CHECK-NEXT: mov x1, xzr
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; CHECK-NEXT: mov x0, x1
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; CHECK-NEXT: str x1, [sp] // 8-byte Folded Spill
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; CHECK-NEXT: str x0, [sp, #8] // 8-byte Folded Spill
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; CHECK-NEXT: b .LBB0_1
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; CHECK-NEXT: .LBB0_1: // %loop
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; CHECK-NEXT: // =>This Inner Loop Header: Depth=1
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; CHECK-NEXT: ldr x0, [sp, #8] // 8-byte Folded Reload
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; CHECK-NEXT: ldr x1, [sp] // 8-byte Folded Reload
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; CHECK-NEXT: str x1, [sp] // 8-byte Folded Spill
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; CHECK-NEXT: str x0, [sp, #8] // 8-byte Folded Spill
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; CHECK-NEXT: b .LBB0_1
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entry:
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br label %loop
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loop:
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%p = phi i72 [ 0, %entry ], [ %p, %loop ]
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br label %loop
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}
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