[llvm] [NVPTX] Add support for maxclusterrank in launch_bounds (PR #66496)

[Jakub Chlanda via llvm-commits]

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@@ -0,0 +1,45 @@
+// RUN: %clang_cc1 -std=c++11 -fsyntax-only -triple nvptx-unknown-unknown -target-cpu sm_90  -verify %s
+
+#include "Inputs/cuda.h"
+
+__launch_bounds__(128, 7) void Test2Args(void);
+__launch_bounds__(128) void Test1Arg(void);
+
+__launch_bounds__(0xffffffff) void TestMaxArg(void);
+__launch_bounds__(0x100000000) void TestTooBigArg(void); // expected-error {{integer constant expression evaluates to value 4294967296 that cannot be represented in a 32-bit unsigned integer type}}
+__launch_bounds__(0x10000000000000000) void TestWayTooBigArg(void); // expected-error {{integer literal is too large to be represented in any integer type}}
+__launch_bounds__(1, 1, 0x10000000000000000) void TestWayTooBigArg(void); // expected-error {{integer literal is too large to be represented in any integer type}}
+
+__launch_bounds__(-128, 7) void TestNegArg1(void); // expected-warning {{'launch_bounds' attribute parameter 0 is negative and will be ignored}}
+__launch_bounds__(128, -7) void TestNegArg2(void); // expected-warning {{'launch_bounds' attribute parameter 1 is negative and will be ignored}}
+__launch_bounds__(128, 1, -7) void TestNegArg2(void); // expected-warning {{'launch_bounds' attribute parameter 2 is negative and will be ignored}}
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jchlanda wrote:

Done in 028d270290218f3cc4fb35acc721b0645f2118ea

https://github.com/llvm/llvm-project/pull/66496