[Flang] fix initializer with empty string to fix aarch64 build

[rscottmanley]

After tuneCPU was changed to std::string in c8376a9 the flang builds broke, due to a missing initializer.

If we want to add tuneCPU to the MLIRToLLVMPassPipelineConfig, we might want to tackle that separately after the build is restored. This should be no different than the previous behaviour.

[llvmbot]

@llvm/pr-subscribers-flang-fir-hlfir

Author: Scott Manley (rscottmanley)

Changes

After tuneCPU was changed to std::string in c8376a9 the aarch64 flang build broke, due to a missing initializer.

If we want to add tuneCPU to the MLIRToLLVMPassPipelineConfig, we might want to tackle that separately after the build is restored and I believe no different than the previous behaviour.

---

Full diff: https://github.com/llvm/llvm-project/pull/126918.diff

1 Files Affected:

• (modified) flang/lib/Optimizer/Passes/Pipelines.cpp (+1-1)

diff --git a/flang/lib/Optimizer/Passes/Pipelines.cpp b/flang/lib/Optimizer/Passes/Pipelines.cpp
index d55ad9e603ffa..a94c0f2117beb 100644
--- a/flang/lib/Optimizer/Passes/Pipelines.cpp
+++ b/flang/lib/Optimizer/Passes/Pipelines.cpp
@@ -326,7 +326,7 @@ void createDefaultFIRCodeGenPassPipeline(mlir::PassManager &pm,
   pm.addPass(fir::createFunctionAttr(
       {framePointerKind, config.NoInfsFPMath, config.NoNaNsFPMath,
        config.ApproxFuncFPMath, config.NoSignedZerosFPMath,
-       config.UnsafeFPMath}));
+       config.UnsafeFPMath, ""}));
 
   fir::addFIRToLLVMPass(pm, config);
 }