[llvm] [IR][AtomicExpand] Add elementwise modifier to atomicrmw; automatically expand for all targets (PR #189517)

[Matt Arsenault via llvm-commits]

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@@ -0,0 +1,506 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5
+; RUN: llc < %s -mtriple=nvptx64 -mcpu=sm_90 -mattr=+ptx84 | FileCheck %s
+; RUN: %if ptxas-sm_90 && ptxas-isa-8.4 %{ llc < %s -mtriple=nvptx64 -mcpu=sm_90 -mattr=+ptx84 | %ptxas-verify -arch=sm_90 %}
+
+target triple = "nvptx64-nvidia-cuda"
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arsenm wrote:

Redundant with the -mtriple, remove one or the other 

https://github.com/llvm/llvm-project/pull/189517