[CUDA] fix builtin constraints for PTX 7.2

This fixes build issues w/ CUDA-11 introduced by https://reviews.llvm.org/D95974

Reviewed By: yaxunl

Differential Revision: https://reviews.llvm.org/D97009

Author: Artem-B

clang/include/clang/Basic/BuiltinsNVPTX.def

@@ -38,7 +38,9 @@
 #pragma push_macro("PTX65")
 #pragma push_macro("PTX70")
 #pragma push_macro("PTX71")
-#define PTX71 "ptx71"
+#pragma push_macro("PTX72")
+#define PTX72 "ptx72"
+#define PTX71 "ptx71|" PTX72
 #define PTX70 "ptx70|" PTX71
 #define PTX65 "ptx65|" PTX70
 #define PTX64 "ptx64|" PTX65
@@ -740,3 +742,4 @@ TARGET_BUILTIN(__imma_m8n8k32_st_c_i32, "vi*iC*UiIi", "", AND(SM_75,PTX63))
 #pragma pop_macro("PTX65")
 #pragma pop_macro("PTX70")
 #pragma pop_macro("PTX71")
+#pragma pop_macro("PTX72")

clang/test/CodeGen/builtins-nvptx-sm_70.cu

@@ -6,6 +6,11 @@
 // RUN:            -fcuda-is-device -target-feature +ptx61 -DPTX61 \
 // RUN:            -S -emit-llvm -o - -x cuda %s \
 // RUN:   | FileCheck -check-prefixes=CHECK_M16,CHECK_M32_M8 %s
+// Make sure builtins still work with the latest combination of GPU & PTX.
+// RUN: %clang_cc1 -triple nvptx64-unknown-unknown -target-cpu sm_86 \
+// RUN:            -fcuda-is-device -target-feature +ptx72 -DPTX61 \
+// RUN:            -S -emit-llvm -o - -x cuda %s \
+// RUN:   | FileCheck -check-prefixes=CHECK_M16,CHECK_M32_M8 %s
 // RUN: %clang_cc1 -triple nvptx-unknown-unknown -target-cpu sm_60 \
 // RUN:   -DPTX61 -fcuda-is-device -S -o /dev/null -x cuda -verify=pre-sm_70 %s
 // RUN: %clang_cc1 -triple nvptx-unknown-unknown \