tree 5b9b5420f58d704eb53ce45058e18e152ae3c2dd
parent ba0fef9f9ecc5c0622e294b0bc7c27d574941cb5
author AbdallahRashed <63146988+AbdallahRashed@users.noreply.github.com> 1778887365 +0200
committer GitHub <noreply@github.com> 1778887365 -0700
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[CIR][CUDA] Support device-side printf for NVPTX (#196573)

Implement device-side printf lowering for NVPTX targets in CIR codegen.
The variadic arguments are packed into a stack-allocated struct and
passed to vprintf, matching the classic codegen behavior in
CGGPUBuiltin.cpp

When the target triple is NVPTX and the builtin is
printf/__builtin_printf, we route to emitNVPTXDevicePrintfCallExpr
The no-varargs case passes a null pointer directly.

AMDGCN device printf remains NYI.
part of https://github.com/llvm/llvm-project/issues/179278