[clang] [llvm] [clang][OMPIRBuilder] Fix reduction codegen for SPIR-V (PR #162529)

[Joseph Huber via cfe-commits]

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+// RUN: %clang_cc1 -verify -fopenmp -x c++ -triple x86_64-unknown-linux -fopenmp-targets=spirv64-intel -emit-llvm-bc %s -o %t-host.bc
+// RUN: %clang_cc1 -verify -fopenmp -x c++ -triple spirv64-intel -fopenmp-targets=spirv64-intel -emit-llvm %s -fopenmp-is-target-device -fopenmp-host-ir-file-path %t-host.bc -o - | FileCheck %s
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jhuber6 wrote:

Is there really not another reduction test we can just slap `spirv` onto?

https://github.com/llvm/llvm-project/pull/162529