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TheRock/compiler/amd-llvm/llvm/test/CodeGen/AMDGPU/merge-out-of-order-ldst.ll
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derek.holloway 7502bf64a4
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Flatten subprojects into a single base monorepo
2026-09-02 16:34:47 -07:00

28 lines
1.4 KiB
LLVM

; RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx900 < %s | FileCheck -check-prefix=GCN %s
@L = external local_unnamed_addr addrspace(3) global [9 x double], align 16
@Ldisp = external local_unnamed_addr addrspace(3) global [96 x double], align 16
; Stores are reordered during loads merge. This case used to assert while
; scanning for a paired instruction because it used to expect paired one
; to follow a base one.
; GCN-LABEL: {{^}}out_of_order_merge:
; GCN-COUNT2: ds_read2_b64
; GCN-COUNT3: ds_write_b64
define amdgpu_kernel void @out_of_order_merge() {
entry:
%gep2 = getelementptr inbounds [96 x double], ptr addrspace(3) @Ldisp, i32 0, i32 1
%tmp12 = load <2 x double>, ptr addrspace(3) getelementptr inbounds ([9 x double], ptr addrspace(3) @L, i32 0, i32 1), align 8
%tmp14 = extractelement <2 x double> %tmp12, i32 0
%tmp15 = extractelement <2 x double> %tmp12, i32 1
%add50.i = fadd double %tmp14, %tmp15
store double %add50.i, ptr addrspace(3) @Ldisp, align 8
%tmp16 = load double, ptr addrspace(3) getelementptr inbounds ([9 x double], ptr addrspace(3) @L, i32 1, i32 0), align 8
store double %tmp16, ptr addrspace(3) %gep2, align 8
%tmp17 = load <2 x double>, ptr addrspace(3) getelementptr inbounds ([9 x double], ptr addrspace(3) @L, i32 2, i32 1), align 8
%tmp19 = extractelement <2 x double> %tmp17, i32 1
store double %tmp19, ptr addrspace(3) poison, align 8
ret void
}