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4d3426d841
When legalizing illegal FP load results, this was for some reason dropping the invariant and dereferencable memory flags. There doesn't seem to be any reason for this, and the equivalent isn't done for integer loads. Fixes an issue in a future AMDGPU commit where some identical loads fail to merge because one of the loads ends up dropping the flags. llvm-svn: 334020
14 lines
567 B
LLVM
14 lines
567 B
LLVM
; RUN: llc -march=amdgcn -mcpu=tahiti -verify-machineinstrs -stop-after=isel -o - %s | FileCheck -check-prefix=GCN %s
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; Type legalization for illegal FP type results was dropping invariant
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; and dereferenceable flags.
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; GCN: BUFFER_LOAD_USHORT_OFFSET killed %{{[0-9]+}}, 0, 0, 0, 0, 0, implicit $exec :: (dereferenceable invariant load 2 from %ir.ptr, addrspace 4)
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define half @legalize_f16_load(half addrspace(4)* dereferenceable(4) %ptr) {
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%load = load half, half addrspace(4)* %ptr, !invariant.load !0
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%add = fadd half %load, 1.0
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ret half %add
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}
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!0 = !{}
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