157 lines
4.0 KiB
LLVM
157 lines
4.0 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc -verify-machineinstrs -debug-entry-values < %s | FileCheck %s
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; Check that we can lower a use of an alloca both as a deopt value (where the
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; exact meaning is up to the consumer of the stackmap) and as an explicit spill
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; slot used for GC.
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target datalayout = "e-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-pc-linux-gnu"
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declare zeroext i1 @return_i1()
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; Can we handle an explicit relocation slot (in the form of an alloca) given
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; to the statepoint?
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define i32 addrspace(1)* @test(i32 addrspace(1)* %ptr) gc "statepoint-example" {
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; CHECK-LABEL: test:
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; CHECK: # %bb.0: # %entry
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; CHECK-NEXT: pushq %rax
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; CHECK-NEXT: .cfi_def_cfa_offset 16
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; CHECK-NEXT: movq %rdi, (%rsp)
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; CHECK-NEXT: callq return_i1
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; CHECK-NEXT: .Ltmp0:
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; CHECK-NEXT: movq (%rsp), %rax
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; CHECK-NEXT: popq %rcx
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; CHECK-NEXT: .cfi_def_cfa_offset 8
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; CHECK-NEXT: retq
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entry:
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%alloca = alloca i32 addrspace(1)*, align 8
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store i32 addrspace(1)* %ptr, i32 addrspace(1)** %alloca
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call token (i64, i32, i1 ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_i1f(i64 0, i32 0, i1 ()* @return_i1, i32 0, i32 0, i32 0, i32 0, i32 addrspace(1)** %alloca)
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%rel = load i32 addrspace(1)*, i32 addrspace(1)** %alloca
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ret i32 addrspace(1)* %rel
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}
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; Can we handle an alloca as a deopt value?
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define i32 addrspace(1)* @test2(i32 addrspace(1)* %ptr) gc "statepoint-example" {
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; CHECK-LABEL: test2:
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; CHECK: # %bb.0: # %entry
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; CHECK-NEXT: pushq %rax
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; CHECK-NEXT: .cfi_def_cfa_offset 16
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; CHECK-NEXT: movq %rdi, (%rsp)
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; CHECK-NEXT: callq return_i1
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; CHECK-NEXT: .Ltmp1:
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; CHECK-NEXT: xorl %eax, %eax
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; CHECK-NEXT: popq %rcx
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; CHECK-NEXT: .cfi_def_cfa_offset 8
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; CHECK-NEXT: retq
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entry:
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%alloca = alloca i32 addrspace(1)*, align 8
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store i32 addrspace(1)* %ptr, i32 addrspace(1)** %alloca
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call token (i64, i32, i1 ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_i1f(i64 0, i32 0, i1 ()* @return_i1, i32 0, i32 0, i32 0, i32 1, i32 addrspace(1)** %alloca)
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ret i32 addrspace(1)* null
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}
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declare token @llvm.experimental.gc.statepoint.p0f_i1f(i64, i32, i1 ()*, i32, i32, ...)
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; CHECK-LABEL: .section .llvm_stackmaps
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; CHECK-NEXT: __LLVM_StackMaps:
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; Header
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; CHECK-NEXT: .byte 3
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; CHECK-NEXT: .byte 0
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; CHECK-NEXT: .short 0
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; Num Functions
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; CHECK-NEXT: .long 2
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; Num LargeConstants
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; CHECK-NEXT: .long 0
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; Num Callsites
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; CHECK-NEXT: .long 2
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; Functions and stack size
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; CHECK-NEXT: .quad test
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; CHECK-NEXT: .quad 8
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; CHECK-NEXT: .quad 1
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; CHECK-NEXT: .quad test2
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; CHECK-NEXT: .quad 8
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; CHECK-NEXT: .quad 1
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; Large Constants
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; Statepoint ID only
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; CHECK: .quad 0
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; Callsites
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; The GC one
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; CHECK: .long .Ltmp0-test
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; CHECK: .short 0
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; CHECK: .short 4
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; SmallConstant (0)
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; CHECK: .byte 4
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; CHECK: .byte 0
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; CHECK: .short 8
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; CHECK: .short 0
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; CHECK: .short 0
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; CHECK: .long 0
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; SmallConstant (0)
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; CHECK: .byte 4
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; CHECK: .byte 0
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; CHECK: .short 8
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; CHECK: .short 0
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; CHECK: .short 0
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; CHECK: .long 0
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; SmallConstant (0)
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; CHECK: .byte 4
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; CHECK: .byte 0
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; CHECK: .short 8
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; CHECK: .short 0
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; CHECK: .short 0
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; CHECK: .long 0
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; Direct Spill Slot [rsp+0]
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; CHECK: .byte 2
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; CHECK: .byte 0
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; CHECK: .short 8
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; CHECK: .short 7
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; CHECK: .short 0
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; CHECK: .long 0
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; No Padding or LiveOuts
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; CHECK: .short 0
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; CHECK: .short 0
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; CHECK: .p2align 3
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; The Deopt one
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; CHECK: .long .Ltmp1-test2
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; CHECK: .short 0
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; CHECK: .short 4
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; SmallConstant (0)
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; CHECK: .byte 4
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; CHECK: .byte 0
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; CHECK: .short 8
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; CHECK: .short 0
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; CHECK: .short 0
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; CHECK: .long 0
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; SmallConstant (0)
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; CHECK: .byte 4
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; CHECK: .byte 0
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; CHECK: .short 8
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; CHECK: .short 0
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; CHECK: .short 0
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; CHECK: .long 0
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; SmallConstant (1)
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; CHECK: .byte 4
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; CHECK: .byte 0
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; CHECK: .short 8
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; CHECK: .short 0
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; CHECK: .short 0
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; CHECK: .long 1
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; Direct Spill Slot [rsp+0]
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; CHECK: .byte 2
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; CHECK: .byte 0
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; CHECK: .short 8
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; CHECK: .short 7
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; CHECK: .short 0
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; CHECK: .long 0
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; No Padding or LiveOuts
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; CHECK: .short 0
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; CHECK: .short 0
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; CHECK: .p2align 3
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