; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc -verify-machineinstrs < %s | FileCheck %s
; A collection of basic functionality tests for statepoint lowering - most
; interesting cornercases are exercised through the x86 tests.
target datalayout = "e-i64:64-f80:128-n8:16:32:64-S128"
target triple = "aarch64-unknown-linux-gnu"
%struct = type { i64, i64 }
declare zeroext i1 @return_i1()
declare zeroext i32 @return_i32()
declare ptr @return_i32ptr()
declare float @return_float()
declare %struct @return_struct()
declare void @varargf(i32, ...)
define i1 @test_i1_return() gc "statepoint-example" {
; CHECK-LABEL: test_i1_return:
; CHECK: // %bb.0: // %entry
; CHECK-NEXT: str x30, [sp, #-16]! // 8-byte Folded Spill
; CHECK-NEXT: .cfi_def_cfa_offset 16
; CHECK-NEXT: .cfi_offset w30, -16
; CHECK-NEXT: bl return_i1
; CHECK-NEXT: .Ltmp0:
; CHECK-NEXT: ldr x30, [sp], #16 // 8-byte Folded Reload
; CHECK-NEXT: ret
; This is just checking that a i1 gets lowered normally when there's no extra
; state arguments to the statepoint
entry:
%safepoint_token = tail call token (i64, i32, ptr, i32, i32, ...) @llvm.experimental.gc.statepoint.p0(i64 0, i32 0, ptr elementtype(i1 ()) @return_i1, i32 0, i32 0, i32 0, i32 0)
%call1 = call zeroext i1 @llvm.experimental.gc.result.i1(token %safepoint_token)
ret i1 %call1
}
define i32 @test_i32_return() gc "statepoint-example" {
; CHECK-LABEL: test_i32_return:
; CHECK: // %bb.0: // %entry
; CHECK-NEXT: str x30, [sp, #-16]! // 8-byte Folded Spill
; CHECK-NEXT: .cfi_def_cfa_offset 16
; CHECK-NEXT: .cfi_offset w30, -16
; CHECK-NEXT: bl return_i32
; CHECK-NEXT: .Ltmp1:
; CHECK-NEXT: ldr x30, [sp], #16 // 8-byte Folded Reload
; CHECK-NEXT: ret
entry:
%safepoint_token = tail call token (i64, i32, ptr, i32, i32, ...) @llvm.experimental.gc.statepoint.p0(i64 0, i32 0, ptr elementtype(i32 ()) @return_i32, i32 0, i32 0, i32 0, i32 0)
%call1 = call zeroext i32 @llvm.experimental.gc.result.i32(token %safepoint_token)
ret i32 %call1
}
define ptr @test_i32ptr_return() gc "statepoint-example" {
; CHECK-LABEL: test_i32ptr_return:
; CHECK: // %bb.0: // %entry
; CHECK-NEXT: str x30, [sp, #-16]! // 8-byte Folded Spill
; CHECK-NEXT: .cfi_def_cfa_offset 16
; CHECK-NEXT: .cfi_offset w30, -16
; CHECK-NEXT: bl return_i32ptr
; CHECK-NEXT: .Ltmp2:
; CHECK-NEXT: ldr x30, [sp], #16 // 8-byte Folded Reload
; CHECK-NEXT: ret
entry:
%safepoint_token = tail call token (i64, i32, ptr, i32, i32, ...) @llvm.experimental.gc.statepoint.p0(i64 0, i32 0, ptr elementtype(ptr ()) @return_i32ptr, i32 0, i32 0, i32 0, i32 0)
%call1 = call ptr @llvm.experimental.gc.result.p0(token %safepoint_token)
ret ptr %call1
}
define float @test_float_return() gc "statepoint-example" {
; CHECK-LABEL: test_float_return:
; CHECK: // %bb.0: // %entry
; CHECK-NEXT: str x30, [sp, #-16]! // 8-byte Folded Spill
; CHECK-NEXT: .cfi_def_cfa_offset 16
; CHECK-NEXT: .cfi_offset w30, -16
; CHECK-NEXT: bl return_float
; CHECK-NEXT: .Ltmp3:
; CHECK-NEXT: ldr x30, [sp], #16 // 8-byte Folded Reload
; CHECK-NEXT: ret
entry:
%safepoint_token = tail call token (i64, i32, ptr, i32, i32, ...) @llvm.experimental.gc.statepoint.p0(i64 0, i32 0, ptr elementtype(float ()) @return_float, i32 0, i32 0, i32 0, i32 0)
%call1 = call float @llvm.experimental.gc.result.f32(token %safepoint_token)
ret float %call1
}
define %struct @test_struct_return() gc "statepoint-example" {
; CHECK-LABEL: test_struct_return:
; CHECK: // %bb.0: // %entry
; CHECK-NEXT: str x30, [sp, #-16]! // 8-byte Folded Spill
; CHECK-NEXT: .cfi_def_cfa_offset 16
; CHECK-NEXT: .cfi_offset w30, -16
; CHECK-NEXT: bl return_struct
; CHECK-NEXT: .Ltmp4:
; CHECK-NEXT: ldr x30, [sp], #16 // 8-byte Folded Reload
; CHECK-NEXT: ret
entry:
%safepoint_token = tail call token (i64, i32, ptr, i32, i32, ...) @llvm.experimental.gc.statepoint.p0(i64 0, i32 0, ptr elementtype(%struct ()) @return_struct, i32 0, i32 0, i32 0, i32 0)
%call1 = call %struct @llvm.experimental.gc.result.struct(token %safepoint_token)
ret %struct %call1
}
define i1 @test_relocate(ptr addrspace(1) %a) gc "statepoint-example" {
; CHECK-LABEL: test_relocate:
; CHECK: // %bb.0: // %entry
; CHECK-NEXT: stp x30, x0, [sp, #-16]! // 8-byte Folded Spill
; CHECK-NEXT: .cfi_def_cfa_offset 16
; CHECK-NEXT: .cfi_offset w30, -16
; CHECK-NEXT: bl return_i1
; CHECK-NEXT: .Ltmp5:
; CHECK-NEXT: ldr x30, [sp], #16 // 8-byte Folded Reload
; CHECK-NEXT: ret
; Check that an ununsed relocate has no code-generation impact
entry:
%safepoint_token = tail call token (i64, i32, ptr, i32, i32, ...) @llvm.experimental.gc.statepoint.p0(i64 0, i32 0, ptr elementtype(i1 ()) @return_i1, i32 0, i32 0, i32 0, i32 0) ["gc-live" (ptr addrspace(1) %a)]
%call1 = call ptr addrspace(1) @llvm.experimental.gc.relocate.p1(token %safepoint_token, i32 0, i32 0)
%call2 = call zeroext i1 @llvm.experimental.gc.result.i1(token %safepoint_token)
ret i1 %call2
}
define void @test_void_vararg() gc "statepoint-example" {
; CHECK-LABEL: test_void_vararg:
; CHECK: // %bb.0: // %entry
; CHECK-NEXT: str x30, [sp, #-16]! // 8-byte Folded Spill
; CHECK-NEXT: .cfi_def_cfa_offset 16
; CHECK-NEXT: .cfi_offset w30, -16
; CHECK-NEXT: mov w0, #42 // =0x2a
; CHECK-NEXT: mov w1, #43 // =0x2b
; CHECK-NEXT: bl varargf
; CHECK-NEXT: .Ltmp6:
; CHECK-NEXT: ldr x30, [sp], #16 // 8-byte Folded Reload
; CHECK-NEXT: ret
; Check a statepoint wrapping a *ptr returning vararg function works
entry:
%safepoint_token = tail call token (i64, i32, ptr, i32, i32, ...) @llvm.experimental.gc.statepoint.p0(i64 0, i32 0, ptr elementtype(void (i32, ...)) @varargf, i32 2, i32 0, i32 42, i32 43, i32 0, i32 0)
;; if we try to use the result from a statepoint wrapping a
;; non-void-returning varargf, we will experience a crash.
ret void
}
define i1 @test_i1_return_patchable() gc "statepoint-example" {
; CHECK-LABEL: test_i1_return_patchable:
; CHECK: // %bb.0: // %entry
; CHECK-NEXT: str x30, [sp, #-16]! // 8-byte Folded Spill
; CHECK-NEXT: .cfi_def_cfa_offset 16
; CHECK-NEXT: .cfi_offset w30, -16
; CHECK-NEXT: nop
; CHECK-NEXT: .Ltmp7:
; CHECK-NEXT: ldr x30, [sp], #16 // 8-byte Folded Reload
; CHECK-NEXT: ret
; A patchable variant of test_i1_return
entry:
%safepoint_token = tail call token (i64, i32, ptr, i32, i32, ...) @llvm.experimental.gc.statepoint.p0(i64 0, i32 4, ptr elementtype(i1 ()) null, i32 0, i32 0, i32 0, i32 0)
%call1 = call zeroext i1 @llvm.experimental.gc.result.i1(token %safepoint_token)
ret i1 %call1
}
declare void @consume(ptr addrspace(1) %obj)
define i1 @test_cross_bb(ptr addrspace(1) %a, i1 %external_cond) gc "statepoint-example" {
; CHECK-LABEL: test_cross_bb:
; CHECK: // %bb.0: // %entry
; CHECK-NEXT: str x30, [sp, #-32]! // 8-byte Folded Spill
; CHECK-NEXT: stp x20, x19, [sp, #16] // 16-byte Folded Spill
; CHECK-NEXT: .cfi_def_cfa_offset 32
; CHECK-NEXT: .cfi_offset w19, -8
; CHECK-NEXT: .cfi_offset w20, -16
; CHECK-NEXT: .cfi_offset w30, -32
; CHECK-NEXT: mov w20, w1
; CHECK-NEXT: str x0, [sp, #8]
; CHECK-NEXT: bl return_i1
; CHECK-NEXT: .Ltmp8:
; CHECK-NEXT: tbz w20, #0, .LBB8_2
; CHECK-NEXT: // %bb.1: // %left
; CHECK-NEXT: mov w19, w0
; CHECK-NEXT: ldr x0, [sp, #8]
; CHECK-NEXT: bl consume
; CHECK-NEXT: b .LBB8_3
; CHECK-NEXT: .LBB8_2:
; CHECK-NEXT: mov w19, #1 // =0x1
; CHECK-NEXT: .LBB8_3: // %common.ret
; CHECK-NEXT: and w0, w19, #0x1
; CHECK-NEXT: ldp x20, x19, [sp, #16] // 16-byte Folded Reload
; CHECK-NEXT: ldr x30, [sp], #32 // 8-byte Folded Reload
; CHECK-NEXT: ret
entry:
%safepoint_token = tail call token (i64, i32, ptr, i32, i32, ...) @llvm.experimental.gc.statepoint.p0(i64 0, i32 0, ptr elementtype(i1 ()) @return_i1, i32 0, i32 0, i32 0, i32 0) ["gc-live" (ptr addrspace(1) %a)]
br i1 %external_cond, label %left, label %right
left:
%call1 = call ptr addrspace(1) @llvm.experimental.gc.relocate.p1(token %safepoint_token, i32 0, i32 0)
%call2 = call zeroext i1 @llvm.experimental.gc.result.i1(token %safepoint_token)
call void @consume(ptr addrspace(1) %call1)
ret i1 %call2
right:
ret i1 true
}
%struct2 = type { i64, i64, i64 }
declare void @consume_attributes(i32, ptr nest, i32, ptr byval(%struct2))
define void @test_attributes(ptr byval(%struct2) %s) gc "statepoint-example" {
; CHECK-LABEL: test_attributes:
; CHECK: // %bb.0: // %entry
; CHECK-NEXT: sub sp, sp, #48
; CHECK-NEXT: str x30, [sp, #32] // 8-byte Folded Spill
; CHECK-NEXT: .cfi_def_cfa_offset 48
; CHECK-NEXT: .cfi_offset w30, -16
; CHECK-NEXT: ldr x8, [sp, #64]
; CHECK-NEXT: ldr q0, [sp, #48]
; CHECK-NEXT: mov x18, xzr
; CHECK-NEXT: mov w0, #42 // =0x2a
; CHECK-NEXT: mov w1, #17 // =0x11
; CHECK-NEXT: str x8, [sp, #16]
; CHECK-NEXT: str q0, [sp]
; CHECK-NEXT: bl consume_attributes
; CHECK-NEXT: .Ltmp9:
; CHECK-NEXT: ldr x30, [sp, #32] // 8-byte Folded Reload
; CHECK-NEXT: add sp, sp, #48
; CHECK-NEXT: ret
entry:
; Check that arguments with attributes are lowered correctly.
; We call a function that has a nest argument and a byval argument.
%statepoint_token = call token (i64, i32, ptr, i32, i32, ...) @llvm.experimental.gc.statepoint.p0(i64 0, i32 0, ptr elementtype(void (i32, ptr, i32, ptr)) @consume_attributes, i32 4, i32 0, i32 42, ptr nest null, i32 17, ptr byval(%struct2) %s, i32 0, i32 0)
ret void
}
declare token @llvm.experimental.gc.statepoint.p0(i64, i32, ptr, i32, i32, ...)
declare i1 @llvm.experimental.gc.result.i1(token)
declare i32 @llvm.experimental.gc.result.i32(token)
declare ptr @llvm.experimental.gc.result.p0(token)
declare float @llvm.experimental.gc.result.f32(token)
declare %struct @llvm.experimental.gc.result.struct(token)
declare ptr addrspace(1) @llvm.experimental.gc.relocate.p1(token, i32, i32)
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