78 lines
3.9 KiB
LLVM
78 lines
3.9 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
|
|
; RUN: llc -verify-machineinstrs < %s | FileCheck %s
|
|
|
|
; Check that we can export values of "duplicated" gc.relocates without a crash
|
|
; "duplicate" here means maps to same SDValue. We previously had an
|
|
; optimization which tried to reduce number of spills/stackmap entries in such
|
|
; cases, but it incorrectly handled exports across basis block boundaries
|
|
; leading to a crash in this case.
|
|
|
|
target triple = "x86_64-pc-linux-gnu"
|
|
|
|
declare void @func()
|
|
|
|
define i1 @test() gc "statepoint-example" {
|
|
; CHECK-LABEL: test:
|
|
; CHECK: # %bb.0: # %entry
|
|
; CHECK-NEXT: pushq %rax
|
|
; CHECK-NEXT: .cfi_def_cfa_offset 16
|
|
; CHECK-NEXT: callq func@PLT
|
|
; CHECK-NEXT: .Ltmp0:
|
|
; CHECK-NEXT: callq func@PLT
|
|
; CHECK-NEXT: .Ltmp1:
|
|
; CHECK-NEXT: movb $1, %al
|
|
; CHECK-NEXT: popq %rcx
|
|
; CHECK-NEXT: .cfi_def_cfa_offset 8
|
|
; CHECK-NEXT: retq
|
|
entry:
|
|
%safepoint_token = call token (i64, i32, void ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_isVoidf(i64 0, i32 0, void ()* elementtype(void ()) @func, i32 0, i32 0, i32 0, i32 0) ["gc-live" (i32 addrspace(1)* null, i32 addrspace(1)* null)]
|
|
%base = call i32 addrspace(1)* @llvm.experimental.gc.relocate.p1i32(token %safepoint_token, i32 0, i32 0)
|
|
%derived = call i32 addrspace(1)* @llvm.experimental.gc.relocate.p1i32(token %safepoint_token, i32 0, i32 1)
|
|
%safepoint_token2 = call token (i64, i32, void ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_isVoidf(i64 0, i32 0, void ()* elementtype(void ()) @func, i32 0, i32 0, i32 0, i32 0) ["gc-live" (i32 addrspace(1)* %base, i32 addrspace(1)* %derived)]
|
|
br label %next
|
|
|
|
next:
|
|
%base_reloc = call i32 addrspace(1)* @llvm.experimental.gc.relocate.p1i32(token %safepoint_token2, i32 0, i32 0)
|
|
%derived_reloc = call i32 addrspace(1)* @llvm.experimental.gc.relocate.p1i32(token %safepoint_token2, i32 0, i32 1)
|
|
%cmp1 = icmp eq i32 addrspace(1)* %base_reloc, null
|
|
%cmp2 = icmp eq i32 addrspace(1)* %derived_reloc, null
|
|
%cmp = and i1 %cmp1, %cmp2
|
|
ret i1 %cmp
|
|
}
|
|
|
|
; Showing redundant fill on first statepoint and spill/fill on second one
|
|
define i1 @test2(i32 addrspace(1)* %arg) gc "statepoint-example" {
|
|
; CHECK-LABEL: test2:
|
|
; CHECK: # %bb.0: # %entry
|
|
; CHECK-NEXT: pushq %rax
|
|
; CHECK-NEXT: .cfi_def_cfa_offset 16
|
|
; CHECK-NEXT: movq %rdi, (%rsp)
|
|
; CHECK-NEXT: callq func@PLT
|
|
; CHECK-NEXT: .Ltmp2:
|
|
; CHECK-NEXT: callq func@PLT
|
|
; CHECK-NEXT: .Ltmp3:
|
|
; CHECK-NEXT: cmpq $0, (%rsp)
|
|
; CHECK-NEXT: sete %al
|
|
; CHECK-NEXT: popq %rcx
|
|
; CHECK-NEXT: .cfi_def_cfa_offset 8
|
|
; CHECK-NEXT: retq
|
|
entry:
|
|
%safepoint_token = call token (i64, i32, void ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_isVoidf(i64 0, i32 0, void ()* elementtype(void ()) @func, i32 0, i32 0, i32 0, i32 0) ["gc-live" (i32 addrspace(1)* %arg, i32 addrspace(1)* %arg)]
|
|
%base = call i32 addrspace(1)* @llvm.experimental.gc.relocate.p1i32(token %safepoint_token, i32 0, i32 0)
|
|
%derived = call i32 addrspace(1)* @llvm.experimental.gc.relocate.p1i32(token %safepoint_token, i32 0, i32 1)
|
|
%safepoint_token2 = call token (i64, i32, void ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_isVoidf(i64 0, i32 0, void ()* elementtype(void ()) @func, i32 0, i32 0, i32 0, i32 0) ["gc-live" (i32 addrspace(1)* %base, i32 addrspace(1)* %derived)]
|
|
br label %next
|
|
|
|
next:
|
|
%base_reloc = call i32 addrspace(1)* @llvm.experimental.gc.relocate.p1i32(token %safepoint_token2, i32 0, i32 0)
|
|
%derived_reloc = call i32 addrspace(1)* @llvm.experimental.gc.relocate.p1i32(token %safepoint_token2, i32 0, i32 1)
|
|
%cmp1 = icmp eq i32 addrspace(1)* %base_reloc, null
|
|
%cmp2 = icmp eq i32 addrspace(1)* %derived_reloc, null
|
|
%cmp = and i1 %cmp1, %cmp2
|
|
ret i1 %cmp
|
|
}
|
|
|
|
|
|
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)
|