[llvm] [SPIRV] Add support for SPV_KHR_abort extension (PR #193037)

[Victor Mustya via llvm-commits]

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+; RUN: llc -O0 -mtriple=spirv32-unknown-unknown --spirv-ext=+SPV_KHR_abort %s -o - | FileCheck %s
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vmustya wrote:

Done: https://github.com/llvm/llvm-project/pull/193037/commits/57c64ddcbe8b1027155da9a3c2d8a9ebf62e790b

https://github.com/llvm/llvm-project/pull/193037