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llvm-project/llvm/test/Transforms/RewriteStatepointsForGC/unordered-atomic-memcpy-no-...

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GC-parseable element atomic memcpy/memmove This change introduces a GC parseable lowering for element atomic memcpy/memmove intrinsics. This way runtime can provide an implementation which can take a safepoint during copy operation. See "GC-parseable element atomic memcpy/memmove" thread on llvm-dev for the background and details: https://groups.google.com/g/llvm-dev/c/NnENHzmX-b8/m/3PyN8Y2pCAAJ Differential Revision: https://reviews.llvm.org/D88861
2020-10-02 11:05:23 +08:00
; RUN: opt -passes=rewrite-statepoints-for-gc -rs4gc-allow-statepoint-with-no-deopt-info=0 -S < %s | FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-REQUIRE-DEOPT
; RUN: opt -passes=rewrite-statepoints-for-gc -rs4gc-allow-statepoint-with-no-deopt-info=1 -S < %s | FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-NO-REQUIRE-DEOPT
target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-apple-macosx10.11.0"
declare void @llvm.memcpy.element.unordered.atomic.p1i8.p1i8.i32(i8 addrspace(1)*, i8 addrspace(1)*, i32, i32 immarg)
declare void @llvm.memmove.element.unordered.atomic.p1i8.p1i8.i32(i8 addrspace(1)*, i8 addrspace(1)*, i32, i32 immarg)
define void @test_memcpy_no_deopt(i8 addrspace(1)* %src, i64 %src_offset, i8 addrspace(1)* %dest, i64 %dest_offset, i32 %len) gc "statepoint-example" {
; CHECK-LABEL: @test_memcpy_no_deopt
; CHECK-REQUIRE-DEOPT-NOT: @llvm.experimental.gc.statepoint
; CHECK-NO-REQUIRE-DEOPT: @llvm.experimental.gc.statepoint
entry:
%src_derived = getelementptr inbounds i8, i8 addrspace(1)* %src, i64 %src_offset
%dest_derived = getelementptr inbounds i8, i8 addrspace(1)* %dest, i64 %dest_offset
call void @llvm.memcpy.element.unordered.atomic.p1i8.p1i8.i32(i8 addrspace(1)* align 16 %src_derived, i8 addrspace(1)* align 16 %dest_derived, i32 %len, i32 1)
ret void
}
define void @test_memmove_no_deopt(i8 addrspace(1)* %src, i64 %src_offset, i8 addrspace(1)* %dest, i64 %dest_offset, i32 %len) gc "statepoint-example" {
; CHECK-LABEL: @test_memmove_no_deopt
; CHECK-REQUIRE-DEOPT-NOT: @llvm.experimental.gc.statepoint
; CHECK-NO-REQUIRE-DEOPT: @llvm.experimental.gc.statepoint
entry:
%src_derived = getelementptr inbounds i8, i8 addrspace(1)* %src, i64 %src_offset
%dest_derived = getelementptr inbounds i8, i8 addrspace(1)* %dest, i64 %dest_offset
call void @llvm.memmove.element.unordered.atomic.p1i8.p1i8.i32(i8 addrspace(1)* align 16 %src_derived, i8 addrspace(1)* align 16 %dest_derived, i32 %len, i32 1)
ret void
}
define void @test_memcpy_with_deopt(i8 addrspace(1)* %src, i64 %src_offset, i8 addrspace(1)* %dest, i64 %dest_offset, i32 %len) gc "statepoint-example" {
; CHECK-LABEL: @test_memcpy_with_deopt
; CHECK-REQUIRE-DEOPT: @llvm.experimental.gc.statepoint
; CHECK-NO-REQUIRE-DEOPT: @llvm.experimental.gc.statepoint
entry:
%src_derived = getelementptr inbounds i8, i8 addrspace(1)* %src, i64 %src_offset
%dest_derived = getelementptr inbounds i8, i8 addrspace(1)* %dest, i64 %dest_offset
call void @llvm.memcpy.element.unordered.atomic.p1i8.p1i8.i32(i8 addrspace(1)* align 16 %src_derived, i8 addrspace(1)* align 16 %dest_derived, i32 %len, i32 1) [ "deopt"(i32 0) ]
ret void
}
define void @test_memmove_with_deopt(i8 addrspace(1)* %src, i64 %src_offset, i8 addrspace(1)* %dest, i64 %dest_offset, i32 %len) gc "statepoint-example" {
; CHECK-LABEL: @test_memmove_with_deopt
; CHECK-REQUIRE-DEOPT: @llvm.experimental.gc.statepoint
; CHECK-NO-REQUIRE-DEOPT: @llvm.experimental.gc.statepoint
entry:
%src_derived = getelementptr inbounds i8, i8 addrspace(1)* %src, i64 %src_offset
%dest_derived = getelementptr inbounds i8, i8 addrspace(1)* %dest, i64 %dest_offset
call void @llvm.memmove.element.unordered.atomic.p1i8.p1i8.i32(i8 addrspace(1)* align 16 %src_derived, i8 addrspace(1)* align 16 %dest_derived, i32 %len, i32 1) [ "deopt"(i32 0) ]
ret void
}