219 lines
9.0 KiB
LLVM
219 lines
9.0 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc -verify-machineinstrs < %s | FileCheck %s
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; A collection of basic functionality tests for statepoint lowering - most
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; interesting cornercases are exercised through the x86 tests.
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target datalayout = "e-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "aarch64-unknown-linux-gnu"
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%struct = type { i64, i64 }
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declare zeroext i1 @return_i1()
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declare zeroext i32 @return_i32()
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declare i32* @return_i32ptr()
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declare float @return_float()
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declare %struct @return_struct()
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declare void @varargf(i32, ...)
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define i1 @test_i1_return() gc "statepoint-example" {
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; CHECK-LABEL: test_i1_return:
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; CHECK: // %bb.0: // %entry
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; CHECK-NEXT: bl return_i1
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; CHECK-NEXT: .Ltmp2:
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; CHECK-NEXT: and w0, w0, #0x1
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; CHECK-NEXT: ret
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; This is just checking that a i1 gets lowered normally when there's no extra
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; state arguments to the statepoint
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entry:
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%safepoint_token = tail 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)
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%call1 = call zeroext i1 @llvm.experimental.gc.result.i1(token %safepoint_token)
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ret i1 %call1
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}
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define i32 @test_i32_return() gc "statepoint-example" {
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; CHECK-LABEL: test_i32_return:
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; CHECK: // %bb.0: // %entry
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; CHECK-NEXT: bl return_i32
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; CHECK-NEXT: .Ltmp3:
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; CHECK-NEXT: ret
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entry:
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%safepoint_token = tail call token (i64, i32, i32 ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_i32f(i64 0, i32 0, i32 ()* @return_i32, i32 0, i32 0, i32 0, i32 0)
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%call1 = call zeroext i32 @llvm.experimental.gc.result.i32(token %safepoint_token)
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ret i32 %call1
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}
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define i32* @test_i32ptr_return() gc "statepoint-example" {
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; CHECK-LABEL: test_i32ptr_return:
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; CHECK: // %bb.0: // %entry
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; CHECK-NEXT: bl return_i32ptr
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; CHECK-NEXT: .Ltmp4:
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; CHECK-NEXT: ret
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entry:
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%safepoint_token = tail call token (i64, i32, i32* ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_p0i32f(i64 0, i32 0, i32* ()* @return_i32ptr, i32 0, i32 0, i32 0, i32 0)
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%call1 = call i32* @llvm.experimental.gc.result.p0i32(token %safepoint_token)
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ret i32* %call1
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}
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define float @test_float_return() gc "statepoint-example" {
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; CHECK-LABEL: test_float_return:
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; CHECK: // %bb.0: // %entry
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; CHECK-NEXT: bl return_float
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; CHECK-NEXT: .Ltmp5:
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; CHECK-NEXT: ret
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entry:
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%safepoint_token = tail call token (i64, i32, float ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_f32f(i64 0, i32 0, float ()* @return_float, i32 0, i32 0, i32 0, i32 0)
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%call1 = call float @llvm.experimental.gc.result.f32(token %safepoint_token)
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ret float %call1
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}
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define %struct @test_struct_return() gc "statepoint-example" {
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; CHECK-LABEL: test_struct_return:
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; CHECK: // %bb.0: // %entry
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; CHECK-NEXT: bl return_struct
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; CHECK-NEXT: .Ltmp6:
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; CHECK-NEXT: ret
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entry:
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%safepoint_token = tail call token (i64, i32, %struct ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_structf(i64 0, i32 0, %struct ()* @return_struct, i32 0, i32 0, i32 0, i32 0)
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%call1 = call %struct @llvm.experimental.gc.result.struct(token %safepoint_token)
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ret %struct %call1
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}
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define i1 @test_relocate(i32 addrspace(1)* %a) gc "statepoint-example" {
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; CHECK-LABEL: test_relocate:
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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: .cfi_def_cfa_offset 16
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; CHECK-NEXT: str x0, [sp, #8]
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; CHECK-NEXT: bl return_i1
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; CHECK-NEXT: .Ltmp7:
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; CHECK-NEXT: and w0, w0, #0x1
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; CHECK-NEXT: add sp, sp, #16 // =16
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; CHECK-NEXT: ret
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; Check that an ununsed relocate has no code-generation impact
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entry:
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%safepoint_token = tail 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) ["gc-live" (i32 addrspace(1)* %a)]
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%call1 = call i32 addrspace(1)* @llvm.experimental.gc.relocate.p1i32(token %safepoint_token, i32 0, i32 0)
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%call2 = call zeroext i1 @llvm.experimental.gc.result.i1(token %safepoint_token)
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ret i1 %call2
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}
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define void @test_void_vararg() gc "statepoint-example" {
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; CHECK-LABEL: test_void_vararg:
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; CHECK: // %bb.0: // %entry
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; CHECK-NEXT: mov w0, #42
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; CHECK-NEXT: mov w1, #43
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; CHECK-NEXT: bl varargf
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; CHECK-NEXT: .Ltmp8:
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; CHECK-NEXT: ret
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; Check a statepoint wrapping a *void* returning vararg function works
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entry:
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%safepoint_token = tail call token (i64, i32, void (i32, ...)*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_isVoidi32varargf(i64 0, i32 0, void (i32, ...)* @varargf, i32 2, i32 0, i32 42, i32 43, i32 0, i32 0)
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;; if we try to use the result from a statepoint wrapping a
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;; non-void-returning varargf, we will experience a crash.
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ret void
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}
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define i1 @test_i1_return_patchable() gc "statepoint-example" {
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; CHECK-LABEL: test_i1_return_patchable:
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; CHECK: // %bb.0: // %entry
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; CHECK-NEXT: nop
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; CHECK-NEXT: .Ltmp9:
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; CHECK-NEXT: and w0, w0, #0x1
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; CHECK-NEXT: ret
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; A patchable variant of test_i1_return
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entry:
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%safepoint_token = tail call token (i64, i32, i1 ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_i1f(i64 0, i32 4, i1 ()*null, i32 0, i32 0, i32 0, i32 0)
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%call1 = call zeroext i1 @llvm.experimental.gc.result.i1(token %safepoint_token)
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ret i1 %call1
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}
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declare void @consume(i32 addrspace(1)* %obj)
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define i1 @test_cross_bb(i32 addrspace(1)* %a, i1 %external_cond) gc "statepoint-example" {
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; CHECK-LABEL: test_cross_bb:
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; CHECK: // %bb.0: // %entry
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; CHECK-NEXT: str x30, [sp, #-32]! // 8-byte Folded Spill
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; CHECK-NEXT: stp x20, x19, [sp, #16] // 16-byte Folded Spill
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; CHECK-NEXT: .cfi_def_cfa_offset 32
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; CHECK-NEXT: .cfi_offset w19, -8
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; CHECK-NEXT: .cfi_offset w20, -16
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; CHECK-NEXT: .cfi_offset w30, -32
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; CHECK-NEXT: mov w20, w1
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; CHECK-NEXT: str x0, [sp, #8]
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; CHECK-NEXT: bl return_i1
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; CHECK-NEXT: .Ltmp10:
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; CHECK-NEXT: tbz w20, #0, .LBB8_2
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; CHECK-NEXT: // %bb.1: // %left
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; CHECK-NEXT: mov w19, w0
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; CHECK-NEXT: ldr x0, [sp, #8]
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; CHECK-NEXT: bl consume
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; CHECK-NEXT: and w0, w19, #0x1
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; CHECK-NEXT: b .LBB8_3
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; CHECK-NEXT: .LBB8_2: // %right
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; CHECK-NEXT: mov w0, #1
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; CHECK-NEXT: .LBB8_3: // %right
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; CHECK-NEXT: ldp x20, x19, [sp, #16] // 16-byte Folded Reload
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; CHECK-NEXT: ldr x30, [sp], #32 // 8-byte Folded Reload
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; CHECK-NEXT: ret
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entry:
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%safepoint_token = tail 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) ["gc-live" (i32 addrspace(1)* %a)]
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br i1 %external_cond, label %left, label %right
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left:
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%call1 = call i32 addrspace(1)* @llvm.experimental.gc.relocate.p1i32(token %safepoint_token, i32 0, i32 0)
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%call2 = call zeroext i1 @llvm.experimental.gc.result.i1(token %safepoint_token)
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call void @consume(i32 addrspace(1)* %call1)
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ret i1 %call2
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right:
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ret i1 true
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}
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%struct2 = type { i64, i64, i64 }
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declare void @consume_attributes(i32, i8* nest, i32, %struct2* byval(%struct2))
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define void @test_attributes(%struct2* byval(%struct2) %s) gc "statepoint-example" {
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; CHECK-LABEL: test_attributes:
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; CHECK: // %bb.0: // %entry
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; CHECK-NEXT: sub sp, sp, #32 // =32
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; CHECK-NEXT: .cfi_def_cfa_offset 32
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; CHECK-NEXT: ldr x8, [sp, #48]
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; CHECK-NEXT: ldr q0, [sp, #32]
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; CHECK-NEXT: mov w0, #42
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; CHECK-NEXT: mov w1, #17
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; CHECK-NEXT: mov x18, xzr
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; CHECK-NEXT: str x8, [sp, #16]
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; CHECK-NEXT: str q0, [sp]
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; CHECK-NEXT: bl consume_attributes
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; CHECK-NEXT: .Ltmp11:
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; CHECK-NEXT: add sp, sp, #32 // =32
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; CHECK-NEXT: ret
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entry:
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; Check that arguments with attributes are lowered correctly.
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; We call a function that has a nest argument and a byval argument.
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%statepoint_token = call token (i64, i32, void (i32, i8*, i32, %struct2*)*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_isVoidi32p0i8i32p0s_struct2sf(i64 0, i32 0, void (i32, i8*, i32, %struct2*)* @consume_attributes, i32 4, i32 0, i32 42, i8* nest null, i32 17, %struct2* byval(%struct2) %s, i32 0, i32 0)
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ret void
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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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declare i1 @llvm.experimental.gc.result.i1(token)
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declare token @llvm.experimental.gc.statepoint.p0f_i32f(i64, i32, i32 ()*, i32, i32, ...)
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declare i32 @llvm.experimental.gc.result.i32(token)
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declare token @llvm.experimental.gc.statepoint.p0f_p0i32f(i64, i32, i32* ()*, i32, i32, ...)
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declare i32* @llvm.experimental.gc.result.p0i32(token)
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declare token @llvm.experimental.gc.statepoint.p0f_f32f(i64, i32, float ()*, i32, i32, ...)
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declare float @llvm.experimental.gc.result.f32(token)
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declare token @llvm.experimental.gc.statepoint.p0f_structf(i64, i32, %struct ()*, i32, i32, ...)
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declare %struct @llvm.experimental.gc.result.struct(token)
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declare token @llvm.experimental.gc.statepoint.p0f_isVoidi32varargf(i64, i32, void (i32, ...)*, i32, i32, ...)
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declare token @llvm.experimental.gc.statepoint.p0f_isVoidi32p0i8i32p0s_struct2sf(i64, i32, void (i32, i8*, i32, %struct2*)*, i32, i32, ...)
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declare i32 addrspace(1)* @llvm.experimental.gc.relocate.p1i32(token, i32, i32)
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