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42668f326d
Summary: Offset folding only works if you are emitting relocations, and we don't emit relocations for local address space globals. Reviewers: arsenm, nhaustov Subscribers: arsenm, llvm-commits, kzhuravl Differential Revision: http://reviews.llvm.org/D21647 llvm-svn: 273765
22 lines
827 B
LLVM
22 lines
827 B
LLVM
; RUN: llc -mtriple=amdgcn--amdhsa -mcpu=fiji -relocation-model=static < %s | FileCheck %s
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@lds = external addrspace(3) global [4 x i32]
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; Function Attrs: nounwind
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; Offset folding is an optimization done for global variables with relocations,
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; which allows you to store the offset in the r_addend of the relocation entry.
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; The offset is apllied to the variables address at link time, which eliminates
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; the need to emit shader instructions to do this calculation.
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; We don't use relocations for local memory, so we should never fold offsets
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; for local memory globals.
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; CHECK-LABEL: lds_no_offset:
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; CHECK ds_write_b32 v{{[0-9]+}}, v{{[0-9]+}} offset:4
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define void @lds_no_offset() {
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entry:
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%ptr = getelementptr [4 x i32], [4 x i32] addrspace(3)* @lds, i32 0, i32 1
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store i32 0, i32 addrspace(3)* %ptr
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ret void
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}
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