llvm-project.git/clang/test/CodeGenHIP/printf-aggregate.cpp, branch main Unnamed repository; edit this file 'description' to name the repository. Don't dump IR output from this test to stdout. 2020-01-17T03:19:45+00:00 Richard Smith richard@metafoo.co.uk 2020-01-17T03:19:45+00:00 01a6cd471f019cfeda057c3b1b6fc6213575217c 






[HIP][AMDGPU] expand printf when compiling HIP to AMDGPU
2020-01-16T09:45:38+00:00

Sameer Sahasrabuddhe
sameer.sahasrabuddhe@amd.com

2019-08-22T10:04:35+00:00

ed181efa175d3e0acc134e6cd161914e64c7195e

Summary:
This change implements the expansion in two parts:
- Add a utility function emitAMDGPUPrintfCall() in LLVM.
- Invoke the above function from Clang CodeGen, when processing a HIP
  program for the AMDGPU target.

The printf expansion has undefined behaviour if the format string is
not a compile-time constant. As a sufficient condition, the HIP
ToolChain now emits -Werror=format-nonliteral.

Reviewed By: arsenm

Differential Revision: https://reviews.llvm.org/D71365





Summary:
This change implements the expansion in two parts:
- Add a utility function emitAMDGPUPrintfCall() in LLVM.
- Invoke the above function from Clang CodeGen, when processing a HIP
  program for the AMDGPU target.

The printf expansion has undefined behaviour if the format string is
not a compile-time constant. As a sufficient condition, the HIP
ToolChain now emits -Werror=format-nonliteral.

Reviewed By: arsenm

Differential Revision: https://reviews.llvm.org/D71365