| ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py |
| ; RUN: llc -verify-machineinstrs < %s | FileCheck %s |
| |
| target datalayout = "e-i64:64-f80:128-n8:16:32:64-S128" |
| target triple = "x86_64-pc-linux-gnu" |
| |
| declare void @use(...) |
| declare void @f() |
| declare token @llvm.experimental.gc.statepoint.p0f_isVoidf(i64, i32, void ()*, i32, i32, ...) |
| declare i32 addrspace(1)* @llvm.experimental.gc.relocate.p1i32(token, i32, i32) #3 |
| declare i8 addrspace(1)* @llvm.experimental.gc.relocate.p1i8(token, i32, i32) #3 |
| |
| ;; Two gc.relocates of the same input, should require only a single spill/fill |
| define void @test_gcrelocate_uniqueing(i32 addrspace(1)* %ptr) gc "statepoint-example" { |
| ; CHECK-LABEL: test_gcrelocate_uniqueing: |
| ; CHECK: # %bb.0: |
| ; CHECK-NEXT: subq $24, %rsp |
| ; CHECK-NEXT: .cfi_def_cfa_offset 32 |
| ; CHECK-NEXT: movq %rdi, {{[0-9]+}}(%rsp) |
| ; CHECK-NEXT: callq f |
| ; CHECK-NEXT: .Ltmp0: |
| ; CHECK-NEXT: movq {{[0-9]+}}(%rsp), %rdi |
| ; CHECK-NEXT: movq %rdi, %rsi |
| ; CHECK-NEXT: xorl %eax, %eax |
| ; CHECK-NEXT: callq use |
| ; CHECK-NEXT: addq $24, %rsp |
| ; CHECK-NEXT: .cfi_def_cfa_offset 8 |
| ; CHECK-NEXT: retq |
| %tok = tail call token (i64, i32, void ()*, i32, i32, ...) |
| @llvm.experimental.gc.statepoint.p0f_isVoidf(i64 0, i32 0, void ()* @f, i32 0, i32 0, i32 0, i32 2, i32 addrspace(1)* %ptr, i32 undef, i32 addrspace(1)* %ptr, i32 addrspace(1)* %ptr) |
| %a = call i32 addrspace(1)* @llvm.experimental.gc.relocate.p1i32(token %tok, i32 9, i32 9) |
| %b = call i32 addrspace(1)* @llvm.experimental.gc.relocate.p1i32(token %tok, i32 10, i32 10) |
| call void (...) @use(i32 addrspace(1)* %a, i32 addrspace(1)* %b) |
| ret void |
| } |
| |
| ;; Two gc.relocates of a bitcasted pointer should only require a single spill/fill |
| define void @test_gcptr_uniqueing(i32 addrspace(1)* %ptr) gc "statepoint-example" { |
| ; CHECK-LABEL: test_gcptr_uniqueing: |
| ; CHECK: # %bb.0: |
| ; CHECK-NEXT: subq $24, %rsp |
| ; CHECK-NEXT: .cfi_def_cfa_offset 32 |
| ; CHECK-NEXT: movq %rdi, {{[0-9]+}}(%rsp) |
| ; CHECK-NEXT: callq f |
| ; CHECK-NEXT: .Ltmp1: |
| ; CHECK-NEXT: movq {{[0-9]+}}(%rsp), %rdi |
| ; CHECK-NEXT: movq %rdi, %rsi |
| ; CHECK-NEXT: xorl %eax, %eax |
| ; CHECK-NEXT: callq use |
| ; CHECK-NEXT: addq $24, %rsp |
| ; CHECK-NEXT: .cfi_def_cfa_offset 8 |
| ; CHECK-NEXT: retq |
| %ptr2 = bitcast i32 addrspace(1)* %ptr to i8 addrspace(1)* |
| %tok = tail call token (i64, i32, void ()*, i32, i32, ...) |
| @llvm.experimental.gc.statepoint.p0f_isVoidf(i64 0, i32 0, void ()* @f, i32 0, i32 0, i32 0, i32 2, i32 addrspace(1)* %ptr, i32 undef, i32 addrspace(1)* %ptr, i8 addrspace(1)* %ptr2) |
| %a = call i32 addrspace(1)* @llvm.experimental.gc.relocate.p1i32(token %tok, i32 9, i32 9) |
| %b = call i8 addrspace(1)* @llvm.experimental.gc.relocate.p1i8(token %tok, i32 10, i32 10) |
| call void (...) @use(i32 addrspace(1)* %a, i8 addrspace(1)* %b) |
| ret void |
| } |
| |
| ;; A GC value is not dead, and does need to be spill (but not filed) if |
| ;; that same value is also in the deopt list. |
| define void @test_deopt_use(i32 addrspace(1)* %ptr) gc "statepoint-example" { |
| ; CHECK-LABEL: test_deopt_use: |
| ; CHECK: # %bb.0: |
| ; CHECK-NEXT: subq $24, %rsp |
| ; CHECK-NEXT: .cfi_def_cfa_offset 32 |
| ; CHECK-NEXT: movq %rdi, {{[0-9]+}}(%rsp) |
| ; CHECK-NEXT: callq f |
| ; CHECK-NEXT: .Ltmp2: |
| ; CHECK-NEXT: addq $24, %rsp |
| ; CHECK-NEXT: .cfi_def_cfa_offset 8 |
| ; CHECK-NEXT: retq |
| tail call token (i64, i32, void ()*, i32, i32, ...) |
| @llvm.experimental.gc.statepoint.p0f_isVoidf(i64 0, i32 0, void ()* @f, i32 0, i32 0, i32 0, i32 2, i32 addrspace(1)* %ptr, i32 undef, i32 addrspace(1)* %ptr) |
| ret void |
| } |
| |
| ;; A GC value which is truely unused does not need to spilled or filled. |
| define void @test_dse(i32 addrspace(1)* %ptr) gc "statepoint-example" { |
| ; CHECK-LABEL: test_dse: |
| ; CHECK: # %bb.0: |
| ; CHECK-NEXT: pushq %rax |
| ; CHECK-NEXT: .cfi_def_cfa_offset 16 |
| ; CHECK-NEXT: callq f |
| ; CHECK-NEXT: .Ltmp3: |
| ; CHECK-NEXT: popq %rax |
| ; CHECK-NEXT: .cfi_def_cfa_offset 8 |
| ; CHECK-NEXT: retq |
| tail call token (i64, i32, void ()*, i32, i32, ...) |
| @llvm.experimental.gc.statepoint.p0f_isVoidf(i64 0, i32 0, void ()* @f, i32 0, i32 0, i32 0, i32 2, i32 undef, i32 undef, i32 addrspace(1)* %ptr) |
| ret void |
| } |