RPCS3/llvm-mirror
1
0
Fork 0
mirror of https://github.com/RPCS3/llvm-mirror.git synced 2024-11-24 03:33:20 +01:00
Code Issues Projects Releases Wiki Activity

[NVPTX] Remove NoCapture from address space conversion intrinsics. NoCapture is not valid in this case, and was causing incorrect optimizations.

Browse Source 
llvm-svn: 174896
This commit is contained in:
Justin Holewinski 2013-02-11 18:56:35 +00:00
parent 2e8c1799a0
commit f41b45202c
2 changed files with 30 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
include/llvm/IR/IntrinsicsNVVM.td
View File

@ -815,36 +815,36 @@ def int_nvvm_ldu_global_p : Intrinsic<[llvm_anyptr_ty],
// of pointer to another type of pointer, while the address space remains
// the same.
def int_nvvm_ptr_local_to_gen: Intrinsic<[llvm_anyptr_ty],
[llvm_anyptr_ty], [IntrNoMem, NoCapture<0>],
[llvm_anyptr_ty], [IntrNoMem],
"llvm.nvvm.ptr.local.to.gen">;
def int_nvvm_ptr_shared_to_gen: Intrinsic<[llvm_anyptr_ty],
[llvm_anyptr_ty], [IntrNoMem, NoCapture<0>],
[llvm_anyptr_ty], [IntrNoMem],
"llvm.nvvm.ptr.shared.to.gen">;
def int_nvvm_ptr_global_to_gen: Intrinsic<[llvm_anyptr_ty],
[llvm_anyptr_ty], [IntrNoMem, NoCapture<0>],
[llvm_anyptr_ty], [IntrNoMem],
"llvm.nvvm.ptr.global.to.gen">;
def int_nvvm_ptr_constant_to_gen: Intrinsic<[llvm_anyptr_ty],
[llvm_anyptr_ty], [IntrNoMem, NoCapture<0>],
[llvm_anyptr_ty], [IntrNoMem],
"llvm.nvvm.ptr.constant.to.gen">;
def int_nvvm_ptr_gen_to_global: Intrinsic<[llvm_anyptr_ty],
[llvm_anyptr_ty], [IntrNoMem, NoCapture<0>],
[llvm_anyptr_ty], [IntrNoMem],
"llvm.nvvm.ptr.gen.to.global">;
def int_nvvm_ptr_gen_to_shared: Intrinsic<[llvm_anyptr_ty],
[llvm_anyptr_ty], [IntrNoMem, NoCapture<0>],
[llvm_anyptr_ty], [IntrNoMem],
"llvm.nvvm.ptr.gen.to.shared">;
def int_nvvm_ptr_gen_to_local: Intrinsic<[llvm_anyptr_ty],
[llvm_anyptr_ty], [IntrNoMem, NoCapture<0>],
[llvm_anyptr_ty], [IntrNoMem],
"llvm.nvvm.ptr.gen.to.local">;
def int_nvvm_ptr_gen_to_constant: Intrinsic<[llvm_anyptr_ty],
[llvm_anyptr_ty], [IntrNoMem, NoCapture<0>],
[llvm_anyptr_ty], [IntrNoMem],
"llvm.nvvm.ptr.gen.to.constant">;
// Used in nvvm internally to help address space opt and ptx code generation
// This is for params that are passed to kernel functions by pointer by-val.
def int_nvvm_ptr_gen_to_param: Intrinsic<[llvm_anyptr_ty],
[llvm_anyptr_ty],
[IntrNoMem, NoCapture<0>],
[IntrNoMem],
"llvm.nvvm.ptr.gen.to.param">;
// Move intrinsics, used in nvvm internally

21
test/CodeGen/NVPTX/intrin-nocapture.ll Normal file
View File

@ -0,0 +1,21 @@
; RUN: opt < %s -O3 -S | FileCheck %s
; Address space intrinsics were erroneously marked NoCapture, leading to bad
; optimizations (such as the store below being eliminated as dead code). This
; test makes sure we don't regress.
declare void @foo(i32 addrspace(1)*)
declare i32 addrspace(1)* @llvm.nvvm.ptr.gen.to.global.p1i32.p0i32(i32*)
; CHECK: @bar
define void @bar() {
%t1 = alloca i32
; CHECK: call i32 addrspace(1)* @llvm.nvvm.ptr.gen.to.global.p1i32.p0i32(i32* %t1)
; CHECK-NEXT: store i32 10, i32* %t1
%t2 = call i32 addrspace(1)* @llvm.nvvm.ptr.gen.to.global.p1i32.p0i32(i32* %t1)
store i32 10, i32* %t1
call void @foo(i32 addrspace(1)* %t2)
ret void
}