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nvptx64: update default alignment to match LLVM 21

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This changed in llvm/llvm-project@91cb8f5d32.
The commit itself is mostly about some intrinsic instructions, but as an
aside it also mentions something about addrspace for tensor memory,
which I believe is what this string is telling us.

@rustbot label: +llvm-main
This commit is contained in:
Augie Fackler 2025-02-04 10:35:05 -05:00
parent 7b31983d55
commit e9cb36bd0f
2 changed files with 7 additions and 1 deletions
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6
compiler/rustc_codegen_llvm/src/context.rs
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@ -194,6 +194,12 @@ pub(crate) unsafe fn create_module<'ll>(
target_data_layout = target_data_layout.replace("-i128:128", "");
}
}
if llvm_version < (21, 0, 0) {
if sess.target.arch == "nvptx64" {
// LLVM 21 updated the default layout on nvptx: https://github.com/llvm/llvm-project/pull/124961
target_data_layout = target_data_layout.replace("e-p6:32:32-i64", "e-i64");
}
}
// Ensure the data-layout values hardcoded remain the defaults.
{