fe5f4c397f
Pass no longer handles skips. Pass now removes unnecessary unconditional branches and lowers early termination branches. Hence rename to SILateBranchLowering. Move code to handle returns to epilog from SIPreEmitPeephole into SILateBranchLowering. This means SIPreEmitPeephole only contains optional optimisations, and all required transforms are in SILateBranchLowering. Reviewed By: arsenm Differential Revision: https://reviews.llvm.org/D98915
20 lines
1.1 KiB
LLVM
20 lines
1.1 KiB
LLVM
; RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx803 -stop-after=si-late-branch-lowering < %s | FileCheck --check-prefix=GCN %s
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; GCN-LABEL: name: syncscopes
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; GCN: FLAT_STORE_DWORD killed renamable $vgpr1_vgpr2, killed renamable $vgpr0, 0, 0, implicit $exec, implicit $flat_scr :: (store syncscope("agent") seq_cst 4 into %ir.agent_out)
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; GCN: FLAT_STORE_DWORD killed renamable $vgpr4_vgpr5, killed renamable $vgpr3, 0, 0, implicit $exec, implicit $flat_scr :: (store syncscope("workgroup") seq_cst 4 into %ir.workgroup_out)
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; GCN: FLAT_STORE_DWORD killed renamable $vgpr7_vgpr8, killed renamable $vgpr6, 0, 0, implicit $exec, implicit $flat_scr :: (store syncscope("wavefront") seq_cst 4 into %ir.wavefront_out)
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define void @syncscopes(
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i32 %agent,
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i32* %agent_out,
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i32 %workgroup,
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i32* %workgroup_out,
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i32 %wavefront,
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i32* %wavefront_out) {
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entry:
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store atomic i32 %agent, i32* %agent_out syncscope("agent") seq_cst, align 4
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store atomic i32 %workgroup, i32* %workgroup_out syncscope("workgroup") seq_cst, align 4
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store atomic i32 %wavefront, i32* %wavefront_out syncscope("wavefront") seq_cst, align 4
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ret void
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}
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