https://github.com/jhuber6 created https://github.com/llvm/llvm-project/pull/202986
Summary: This hack is intended for non-RDC AMDGCN. >From 6519786be4ef7ad70d2909aa2cfd8db54680554a Mon Sep 17 00:00:00 2001 From: Joseph Huber <[email protected]> Date: Wed, 10 Jun 2026 08:58:39 -0500 Subject: [PATCH] [AMDGPU][SPIR-V] Fix treating SPIR-V input as LLVM-IR Summary: This hack is intended for non-RDC AMDGCN. --- clang/lib/Driver/ToolChains/Clang.cpp | 2 +- clang/test/Driver/hip-toolchain-no-rdc.hip | 8 ++++++++ 2 files changed, 9 insertions(+), 1 deletion(-) diff --git a/clang/lib/Driver/ToolChains/Clang.cpp b/clang/lib/Driver/ToolChains/Clang.cpp index 5b124ed9f9832..c3ccee7f19653 100644 --- a/clang/lib/Driver/ToolChains/Clang.cpp +++ b/clang/lib/Driver/ToolChains/Clang.cpp @@ -9706,7 +9706,7 @@ void LinkerWrapper::ConstructJob(Compilation &C, const JobAction &JA, options::OPT_fprofile_instr_generate_EQ); if (!Args.hasArg(options::OPT_foffload_lto_EQ, options::OPT_fno_offload_lto) && - !UsesProfileGenerate) + !UsesProfileGenerate && !TC->getTriple().isSPIRV()) CmdArgs.push_back("--no-lto"); } } diff --git a/clang/test/Driver/hip-toolchain-no-rdc.hip b/clang/test/Driver/hip-toolchain-no-rdc.hip index 591342df3839c..dbea253dc75d1 100644 --- a/clang/test/Driver/hip-toolchain-no-rdc.hip +++ b/clang/test/Driver/hip-toolchain-no-rdc.hip @@ -47,6 +47,14 @@ // RUN: %s -nogpuinc -nogpulib \ // RUN: 2>&1 | FileCheck -check-prefixes=AMDGCNSPIRV-NEW %s +// SPIR-V requires the LTO pipeline; --no-lto must not be passed. +// RUN: %clang -### --target=x86_64-linux-gnu -fno-gpu-rdc \ +// RUN: --offload-arch=amdgcnspirv -nogpuinc -nogpulib \ +// RUN: %s 2>&1 | FileCheck -check-prefixes=SPIRV-NO-LTO %s +// SPIRV-NO-LTO: {{".*clang-linker-wrapper}} +// SPIRV-NO-LTO-NOT: "--no-lto" +// SPIRV-NO-LTO-SAME: "--emit-fatbin-only" + // Profile generation needs LTO, so the linker wrapper must not get --no-lto. // RUN: %clang -### --target=x86_64-linux-gnu -fno-gpu-rdc -fprofile-generate \ // RUN: -x hip --cuda-gpu-arch=gfx900 -nogpuinc -nogpulib --offload-new-driver \ _______________________________________________ cfe-commits mailing list [email protected] https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
