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c31d80dbf5
Because everything live is spilled at the end of a block by fast regalloc, assume this will happen and avoid the copies of the resource descriptor. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@284119 91177308-0d34-0410-b5e6-96231b3b80d8
34 lines
936 B
LLVM
34 lines
936 B
LLVM
; RUN: llc -O0 -mtriple=amdgcn--amdhsa -mcpu=fiji -verify-machineinstrs < %s | FileCheck -check-prefix=GCN -check-prefix=VI -check-prefix=OPTNONE %s
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; GCN-LABEL: {{^}}store_to_undef:
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; -O0 should assume spilling, so the input scratch resource descriptor
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; -should be used directly without any copies.
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; OPTNONE-NOT: s_mov_b32
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; OPTNONE: buffer_store_dword v{{[0-9]+}}, v{{[0-9]+}}, s[0:3], s7 offen{{$}}
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define void @store_to_undef() #0 {
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store volatile i32 0, i32* undef
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ret void
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}
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; GCN-LABEL: {{^}}store_to_inttoptr:
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define void @store_to_inttoptr() #0 {
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store volatile i32 0, i32* inttoptr (i32 123 to i32*)
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ret void
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}
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; GCN-LABEL: {{^}}load_from_undef:
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define void @load_from_undef() #0 {
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%ld = load volatile i32, i32* undef
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ret void
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}
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; GCN-LABEL: {{^}}load_from_inttoptr:
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define void @load_from_inttoptr() #0 {
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%ld = load volatile i32, i32* inttoptr (i32 123 to i32*)
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ret void
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}
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attributes #0 = { nounwind }
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