derek.holloway
7502bf64a4
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77 lines
2.8 KiB
LLVM
77 lines
2.8 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5
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; Test atomic half addition. Expect a compare-and-swap loop.
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;
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; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
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define half @f1(ptr %src, half %b) {
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; CHECK-LABEL: f1:
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; CHECK: # %bb.0:
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; CHECK-NEXT: stmg %r11, %r15, 88(%r15)
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; CHECK-NEXT: .cfi_offset %r11, -72
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; CHECK-NEXT: .cfi_offset %r12, -64
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; CHECK-NEXT: .cfi_offset %r13, -56
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; CHECK-NEXT: .cfi_offset %r14, -48
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; CHECK-NEXT: .cfi_offset %r15, -40
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; CHECK-NEXT: aghi %r15, -184
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; CHECK-NEXT: .cfi_def_cfa_offset 344
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; CHECK-NEXT: std %f8, 176(%r15) # 8-byte Spill
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; CHECK-NEXT: std %f9, 168(%r15) # 8-byte Spill
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; CHECK-NEXT: std %f10, 160(%r15) # 8-byte Spill
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; CHECK-NEXT: .cfi_offset %f8, -168
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; CHECK-NEXT: .cfi_offset %f9, -176
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; CHECK-NEXT: .cfi_offset %f10, -184
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; CHECK-NEXT: lgr %r13, %r2
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; CHECK-NEXT: lgh %r0, 0(%r2)
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; CHECK-NEXT: ler %f8, %f0
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; CHECK-NEXT: sllg %r0, %r0, 48
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; CHECK-NEXT: ldgr %f9, %r0
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; CHECK-NEXT: risbg %r12, %r2, 0, 189, 0
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; CHECK-NEXT: sll %r13, 3
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; CHECK-NEXT: lcr %r11, %r13
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; CHECK-NEXT: j .LBB0_2
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; CHECK-NEXT: .LBB0_1: # %atomicrmw.start
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; CHECK-NEXT: # in Loop: Header=BB0_2 Depth=1
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; CHECK-NEXT: sllg %r0, %r3, 48
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; CHECK-NEXT: ldgr %f9, %r0
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; CHECK-NEXT: je .LBB0_5
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; CHECK-NEXT: .LBB0_2: # %atomicrmw.start
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; CHECK-NEXT: # =>This Loop Header: Depth=1
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; CHECK-NEXT: # Child Loop BB0_3 Depth 2
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; CHECK-NEXT: ler %f0, %f8
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; CHECK-NEXT: brasl %r14, __extendhfsf2@PLT
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; CHECK-NEXT: ler %f10, %f0
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; CHECK-NEXT: ler %f0, %f9
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; CHECK-NEXT: brasl %r14, __extendhfsf2@PLT
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; CHECK-NEXT: aebr %f0, %f10
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; CHECK-NEXT: brasl %r14, __truncsfhf2@PLT
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; CHECK-NEXT: # kill: def $f0h killed $f0h def $f0d
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; CHECK-NEXT: lgdr %r1, %f0
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; CHECK-NEXT: l %r0, 0(%r12)
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; CHECK-NEXT: srlg %r1, %r1, 48
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; CHECK-NEXT: lgdr %r2, %f9
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; CHECK-NEXT: srlg %r2, %r2, 48
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; CHECK-NEXT: .LBB0_3: # %atomicrmw.start
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; CHECK-NEXT: # Parent Loop BB0_2 Depth=1
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; CHECK-NEXT: # => This Inner Loop Header: Depth=2
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; CHECK-NEXT: rll %r3, %r0, 16(%r13)
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; CHECK-NEXT: risbg %r1, %r3, 32, 47, 0
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; CHECK-NEXT: llhr %r3, %r3
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; CHECK-NEXT: cr %r3, %r2
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; CHECK-NEXT: jlh .LBB0_1
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; CHECK-NEXT: # %bb.4: # %atomicrmw.start
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; CHECK-NEXT: # in Loop: Header=BB0_3 Depth=2
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; CHECK-NEXT: rll %r4, %r1, -16(%r11)
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; CHECK-NEXT: cs %r0, %r4, 0(%r12)
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; CHECK-NEXT: jl .LBB0_3
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; CHECK-NEXT: j .LBB0_1
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; CHECK-NEXT: .LBB0_5: # %atomicrmw.end
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; CHECK-NEXT: ler %f0, %f9
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; CHECK-NEXT: ld %f8, 176(%r15) # 8-byte Reload
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; CHECK-NEXT: ld %f9, 168(%r15) # 8-byte Reload
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; CHECK-NEXT: ld %f10, 160(%r15) # 8-byte Reload
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; CHECK-NEXT: lmg %r11, %r15, 272(%r15)
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; CHECK-NEXT: br %r14
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%res = atomicrmw fadd ptr %src, half %b seq_cst
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ret half %res
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}
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