From: Yaxun (Sam) Liu <yaxun.liu@amd.com>
Date: Thu, 19 Dec 2019 20:27:02 +0000 (-0500)
Subject: [OpenCL] Fix inconsistency between opencl and c11 atomic fetch max/min
X-Git-Tag: llvmorg-11-init~1314
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=134ef0fb4b92718477a1dc9da0118f9b2dd77237;p=platform%2Fupstream%2Fllvm.git

[OpenCL] Fix inconsistency between opencl and c11 atomic fetch max/min

There is some inconsistency between opencl and c11 atomic fetch max/min after

https://reviews.llvm.org/D46386

https://reviews.llvm.org/D55562

It is not reasonable to have such inconsistencies. This patch fixes that.

Differential Revision: https://reviews.llvm.org/D71725
---

diff --git a/clang/lib/Sema/SemaChecking.cpp b/clang/lib/Sema/SemaChecking.cpp
index b8295bc..d8711fb 100644
--- a/clang/lib/Sema/SemaChecking.cpp
+++ b/clang/lib/Sema/SemaChecking.cpp
@@ -4642,8 +4642,6 @@ ExprResult Sema::BuildAtomicExpr(SourceRange CallRange, SourceRange ExprRange,
   case AtomicExpr::AO__c11_atomic_fetch_sub:
   case AtomicExpr::AO__opencl_atomic_fetch_add:
   case AtomicExpr::AO__opencl_atomic_fetch_sub:
-  case AtomicExpr::AO__opencl_atomic_fetch_min:
-  case AtomicExpr::AO__opencl_atomic_fetch_max:
   case AtomicExpr::AO__atomic_fetch_add:
   case AtomicExpr::AO__atomic_fetch_sub:
   case AtomicExpr::AO__atomic_add_fetch:
@@ -4666,6 +4664,8 @@ ExprResult Sema::BuildAtomicExpr(SourceRange CallRange, SourceRange ExprRange,
   case AtomicExpr::AO__atomic_nand_fetch:
   case AtomicExpr::AO__c11_atomic_fetch_min:
   case AtomicExpr::AO__c11_atomic_fetch_max:
+  case AtomicExpr::AO__opencl_atomic_fetch_min:
+  case AtomicExpr::AO__opencl_atomic_fetch_max:
   case AtomicExpr::AO__atomic_min_fetch:
   case AtomicExpr::AO__atomic_max_fetch:
   case AtomicExpr::AO__atomic_fetch_min:
diff --git a/clang/test/SemaOpenCL/atomic-ops.cl b/clang/test/SemaOpenCL/atomic-ops.cl
index c95c73d..5a8c6fc 100644
--- a/clang/test/SemaOpenCL/atomic-ops.cl
+++ b/clang/test/SemaOpenCL/atomic-ops.cl
@@ -77,8 +77,8 @@ void f(atomic_int *i, const atomic_int *ci,
 
   __opencl_atomic_fetch_min(i, 1, memory_order_seq_cst, memory_scope_work_group);
   __opencl_atomic_fetch_max(i, 1, memory_order_seq_cst, memory_scope_work_group);
-  __opencl_atomic_fetch_min(d, 1, memory_order_seq_cst, memory_scope_work_group); // expected-error {{address argument to atomic operation must be a pointer to atomic integer or pointer ('__generic atomic_float *' (aka '__generic _Atomic(float) *') invalid)}}
-  __opencl_atomic_fetch_max(d, 1, memory_order_seq_cst, memory_scope_work_group); // expected-error {{address argument to atomic operation must be a pointer to atomic integer or pointer ('__generic atomic_float *' (aka '__generic _Atomic(float) *') invalid)}}
+  __opencl_atomic_fetch_min(d, 1, memory_order_seq_cst, memory_scope_work_group); // expected-error {{address argument to atomic operation must be a pointer to atomic integer ('__generic atomic_float *' (aka '__generic _Atomic(float) *') invalid)}}
+  __opencl_atomic_fetch_max(d, 1, memory_order_seq_cst, memory_scope_work_group); // expected-error {{address argument to atomic operation must be a pointer to atomic integer ('__generic atomic_float *' (aka '__generic _Atomic(float) *') invalid)}}
 
   bool cmpexch_1 = __opencl_atomic_compare_exchange_strong(i, I, 1, memory_order_seq_cst, memory_order_seq_cst, memory_scope_work_group);
   bool cmpexch_2 = __opencl_atomic_compare_exchange_strong(p, P, 1, memory_order_seq_cst, memory_order_seq_cst, memory_scope_work_group);