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81 lines
2.3 KiB
81 lines
2.3 KiB
4 months ago
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# RUN: llc -mtriple=arm-linux-unknown-gnueabi -run-pass none -o - %s | FileCheck %s
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--- |
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declare void @dummy_use(i32*, i32)
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define void @test_basic() #0 {
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entry:
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%mem = alloca i32, i32 10
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call void @dummy_use(i32* %mem, i32 10)
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ret void
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}
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attributes #0 = { "split-stack" }
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...
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---
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name: test_basic
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tracksRegLiveness: true
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frameInfo:
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stackSize: 48
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maxAlignment: 4
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adjustsStack: true
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hasCalls: true
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stack:
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- { id: 0, name: mem, offset: -48, size: 40, alignment: 4 }
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- { id: 1, type: spill-slot, offset: -4, size: 4, alignment: 4,
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callee-saved-register: '$lr' }
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- { id: 2, type: spill-slot, offset: -8, size: 4, alignment: 4,
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callee-saved-register: '$r11' }
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body: |
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bb.0:
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successors: %bb.2, %bb.1
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liveins: $r11, $lr
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$sp = STMDB_UPD $sp, 14, _, $r4, $r5
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CFI_INSTRUCTION def_cfa_offset 8
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CFI_INSTRUCTION offset $r5, -4
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CFI_INSTRUCTION offset $r4, -8
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$r5 = MOVr $sp, 14, _, _
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$r4 = MRC 15, 0, 13, 0, 3, 14, _
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$r4 = LDRi12 $r4, 4, 14, _
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CMPrr $r4, $r5, 14, _, implicit-def $cpsr
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Bcc %bb.2, 3, $cpsr
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bb.1:
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successors: %bb.2
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liveins: $r11, $lr
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$r4 = MOVi 48, 14, _, _
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$r5 = MOVi 0, 14, _, _
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$sp = STMDB_UPD $sp, 14, _, $lr
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CFI_INSTRUCTION def_cfa_offset 12
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CFI_INSTRUCTION offset $lr, -12
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BL &__morestack, implicit-def $lr, implicit $sp
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$sp = LDMIA_UPD $sp, 14, _, $lr
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$sp = LDMIA_UPD $sp, 14, _, $r4, $r5
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CFI_INSTRUCTION def_cfa_offset 0
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BX_RET 14, _
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bb.2:
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liveins: $r11, $lr
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$sp = LDMIA_UPD $sp, 14, _, $r4, $r5
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CFI_INSTRUCTION def_cfa_offset 0
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; CHECK: CFI_INSTRUCTION same_value $r4
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; CHECK-NEXT: CFI_INSTRUCTION same_value $r5
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CFI_INSTRUCTION same_value $r4
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CFI_INSTRUCTION same_value $r5
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$sp = frame-setup STMDB_UPD $sp, 14, _, killed $r11, killed $lr
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frame-setup CFI_INSTRUCTION def_cfa_offset 8
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frame-setup CFI_INSTRUCTION offset $lr, -4
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frame-setup CFI_INSTRUCTION offset $r11, -8
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$sp = frame-setup SUBri killed $sp, 40, 14, _, _
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frame-setup CFI_INSTRUCTION def_cfa_offset 48
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$r0 = MOVr $sp, 14, _, _
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$r1 = MOVi 10, 14, _, _
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BL @dummy_use, csr_aapcs, implicit-def dead $lr, implicit $sp, implicit $r0, implicit killed $r1, implicit-def $sp
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$sp = ADDri killed $sp, 40, 14, _, _
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$sp = LDMIA_UPD $sp, 14, _, $r4, $r5
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MOVPCLR 14, _
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...
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