137f785fa6
This will result in larger atomic operations getting expanded to `__atomic_*` libcalls via AtomicExpandPass, which matches what Clang already does in the frontend. While AMDGPU currently disables the use of all libcalls, I've changed it to instead disable all of them _except_ the atomic ones. Those are already be emitted by the Clang frontend, and enabling them in the backend allows the same behavior there.
11 lines
317 B
LLVM
11 lines
317 B
LLVM
; RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx900 -verify-machineinstrs < %s | FileCheck %s
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define void @test(ptr %a) nounwind {
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; CHECK-LABEL: test:
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; CHECK: __atomic_load_16
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; CHECK: __atomic_store_16
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%1 = load atomic i128, ptr %a seq_cst, align 16
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store atomic i128 %1, ptr %a seq_cst, align 16
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ret void
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}
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