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Make floating-point atomics work on the LLVM back-end path #595

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Merged
michel2323 merged 4 commits into from
Aug 1, 2026
Merged

Make floating-point atomics work on the LLVM back-end path #595

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c91ca02
Make floating-point atomics work on the LLVM back-end path
michel2323 Jul 21, 2026
2b571e8
Test wtih JuliaGPU/OpenCL.jl#main
michel2323 Jul 30, 2026
4a530f2
Use release SPIRVIntrinsics
michel2323 Aug 1, 2026
c487a8e
Bump version
michel2323 Aug 1, 2026
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2 changes: 1 addition & 1 deletion Project.toml
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Original file line number Diff line number Diff line change
@@ -1,7 +1,7 @@
name = "oneAPI"
uuid = "8f75cd03-7ff8-4ecb-9b8f-daf728133b1b"
authors = ["Tim Besard <tim.besard@gmail.com>", "Alexis Montoison", "Michel Schanen <michel.schanen@gmail.com>"]
version = "2.7.2"
version = "2.7.3"

[deps]
AbstractFFTs = "621f4979-c628-5d54-868e-fcf4e3e8185c"
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9 changes: 8 additions & 1 deletion src/compiler/compilation.jl
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Expand Up @@ -328,7 +328,14 @@ end
# advertise the extension). We lower bfloat→i16 in finish_ir! when needed.
supports_bfloat16 = _device_supports_bfloat16(dev)

extensions = String[]
# SPIR-V extensions the LLVM back-end may emit. Declaring them permits the
# corresponding instructions during translation: without
# SPV_EXT_shader_atomic_float_add, floating-point atomic operations fail to
# translate ("The atomic float instruction requires ... SPV_EXT_shader_atomic_float_add").
extensions = String[
"SPV_EXT_relaxed_printf_string_address_space",
"SPV_EXT_shader_atomic_float_add",
]
# Only add the SPIR-V extension if the runtime actually supports it
if _driver_supports_bfloat16_spirv(dev)
push!(extensions, "SPV_KHR_bfloat16")
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