================
@@ -1,6 +1,6 @@
 ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py 
UTC_ARGS: --version 5
-; RUN: llc < %s -mtriple=nvptx64-- -mcpu=sm_30 2>&1 | FileCheck %s
-; RUN: %if ptxas-sm_30 %{ llc < %s -mtriple=nvptx64-- -mcpu=sm_30 | 
%ptxas-verify -arch=sm_30 %}
+; RUN: llc < %s -mtriple=nvptx64-- -mcpu=sm_30 -mattr=+ptx60 2>&1 | FileCheck 
%s
+; RUN: %if ptxas-sm_30 && ptxas-isa-6.0 %{ llc < %s -mtriple=nvptx64-- 
-mcpu=sm_30 -mattr=+ptx60 | %ptxas-verify -arch=sm_30 %}
----------------
justinfargnoli wrote:

> I assume new ptxas would still accept code generated for sm_30 while 
> targeting sm_75.

Yes, this does work: [CE](https://godbolt.org/z/dGqjKzd95)

> In cases like these, we should probably set PTX GPU constraint to match the 
> current default GPU. This applies to all test cases where we constrain ptxas 
> on the old GPU variant.

I agree. e.g. `... | %ptxas-verify -arch=sm_XX`: if `XX` < 75, then we should 
remove `-arch=sm_XX` and just use the default `%ptxas-verify` confugration. 

Since this will apply to many other tests, I'll track this work separately from 
this PR. 

https://github.com/llvm/llvm-project/pull/177459
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