derek.holloway
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59 lines
2.7 KiB
LLVM
59 lines
2.7 KiB
LLVM
; Verify that selectAtomicRMW emits MemorySemantics with the storage-class
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; bit OR'd into the ordering bits, as required by the SPIR-V spec
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; (section 3.32, Memory Semantics): atomic ops must combine the ordering
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; bits (Acquire/Release/AcquireRelease/SequentiallyConsistent) with the
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; relevant storage-class bit (UniformMemory, WorkgroupMemory,
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; CrossWorkgroupMemory, ...).
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; RUN: llc -verify-machineinstrs -O0 -mtriple=spirv64-unknown-unknown %s -o - | FileCheck %s
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; RUN: %if spirv-tools %{ llc -O0 -mtriple=spirv64-unknown-unknown %s -o - -filetype=obj | spirv-val %}
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; RUN: llc -verify-machineinstrs -O0 -mtriple=spirv32-unknown-unknown %s -o - | FileCheck %s
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; RUN: %if spirv-tools %{ llc -O0 -mtriple=spirv32-unknown-unknown %s -o - -filetype=obj | spirv-val %}
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; CrossWorkgroupMemory = 0x200 = 512
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; WorkgroupMemory = 0x100 = 256
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; AcquireRelease = 0x008 = 8 -> with CrossWorkgroup: 520, with Workgroup: 264
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; SequentiallyConsistent = 0x010 = 16 -> with CrossWorkgroup: 528, with Workgroup: 272
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; Acquire = 0x002 = 2 -> with CrossWorkgroup: 514
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; CHECK-DAG: %[[#Int:]] = OpTypeInt 32 0
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; CHECK-DAG: %[[#MemSem_AcqRel_CW:]] = OpConstant %[[#Int]] 520
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; CHECK-DAG: %[[#MemSem_SeqCst_CW:]] = OpConstant %[[#Int]] 528
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; CHECK-DAG: %[[#MemSem_Acquire_CW:]] = OpConstant %[[#Int]] 514
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; CHECK-DAG: %[[#MemSem_AcqRel_WG:]] = OpConstant %[[#Int]] 264
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; CHECK-DAG: %[[#MemSem_SeqCst_WG:]] = OpConstant %[[#Int]] 272
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@g_cw = common dso_local addrspace(1) global i32 0, align 4
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@g_wg = common dso_local addrspace(3) global i32 0, align 4
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define dso_local spir_func void @test_crossworkgroup() {
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entry:
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; CrossWorkgroup pointer + acq_rel -> MemSem 520 (8 | 0x200)
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; CHECK: OpAtomicIAdd %[[#Int]] %{{[0-9]+}} %{{[0-9]+}} %[[#MemSem_AcqRel_CW]] %{{[0-9]+}}
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%0 = atomicrmw add ptr addrspace(1) @g_cw, i32 1 acq_rel
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; CrossWorkgroup pointer + seq_cst -> MemSem 528 (16 | 0x200)
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; CHECK: OpAtomicExchange %[[#Int]] %{{[0-9]+}} %{{[0-9]+}} %[[#MemSem_SeqCst_CW]] %{{[0-9]+}}
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%1 = atomicrmw xchg ptr addrspace(1) @g_cw, i32 7 seq_cst
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; CrossWorkgroup pointer + acquire -> MemSem 514 (2 | 0x200)
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; CHECK: OpAtomicOr %[[#Int]] %{{[0-9]+}} %{{[0-9]+}} %[[#MemSem_Acquire_CW]] %{{[0-9]+}}
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%2 = atomicrmw or ptr addrspace(1) @g_cw, i32 3 acquire
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ret void
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}
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define dso_local spir_func void @test_workgroup() {
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entry:
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; Workgroup pointer + acq_rel -> MemSem 264 (8 | 0x100)
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; CHECK: OpAtomicIAdd %[[#Int]] %{{[0-9]+}} %{{[0-9]+}} %[[#MemSem_AcqRel_WG]] %{{[0-9]+}}
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%0 = atomicrmw add ptr addrspace(3) @g_wg, i32 1 acq_rel
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; Workgroup pointer + seq_cst -> MemSem 272 (16 | 0x100)
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; CHECK: OpAtomicExchange %[[#Int]] %{{[0-9]+}} %{{[0-9]+}} %[[#MemSem_SeqCst_WG]] %{{[0-9]+}}
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%1 = atomicrmw xchg ptr addrspace(3) @g_wg, i32 7 seq_cst
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ret void
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}
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