derek.holloway
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56 lines
2.6 KiB
LLVM
56 lines
2.6 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 3
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; RUN: opt -S -mtriple=amdgcn-- -amdgpu-lower-module-lds --amdgpu-lower-module-lds-strategy=module < %s | FileCheck %s
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; RUN: opt -S -mtriple=amdgcn-- -passes=amdgpu-lower-module-lds --amdgpu-lower-module-lds-strategy=module < %s | FileCheck %s
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; Check new struct is added to compiler.used and that the replaced variable is removed
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; CHECK: %llvm.amdgcn.module.lds.t = type { float }
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; CHECK: @ignored = addrspace(1) global i64 0
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; @ignored still in list, @tolower removed, llvm.amdgcn.module.lds appended
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; Start with one value to replace and one to ignore in the .use list
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; @ignored still in list, @tolower removed
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; CHECK: @llvm.used = appending global [1 x ptr] [ptr addrspacecast (ptr addrspace(1) @ignored to ptr)], section "llvm.metadata"
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; CHECK: @llvm.amdgcn.module.lds = internal addrspace(3) global %llvm.amdgcn.module.lds.t poison, align 8
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; CHECK-NOT: @tolower
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@tolower = addrspace(3) global float poison, align 8
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; A variable that is unchanged by pass
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@ignored = addrspace(1) global i64 0
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@llvm.used = appending global [2 x ptr] [ptr addrspacecast (ptr addrspace(3) @tolower to ptr), ptr addrspacecast (ptr addrspace(1) @ignored to ptr)], section "llvm.metadata"
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; @ignored still in list, @tolower removed, llvm.amdgcn.module.lds appended
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; CHECK: @llvm.compiler.used = appending addrspace(1) global [2 x ptr] [ptr addrspacecast (ptr addrspace(1) @ignored to ptr), ptr addrspacecast (ptr addrspace(3) @llvm.amdgcn.module.lds to ptr)], section "llvm.metadata"
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@llvm.compiler.used = appending global [2 x ptr] [ptr addrspacecast (ptr addrspace(3) @tolower to ptr), ptr addrspacecast (ptr addrspace(1) @ignored to ptr)], section "llvm.metadata"
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; Functions that are not called are ignored by the lowering
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define amdgpu_kernel void @call_func() {
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; CHECK-LABEL: define amdgpu_kernel void @call_func(
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; CHECK-SAME: ) #[[ATTR0:[0-9]+]] {
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; CHECK-NEXT: call void @llvm.donothing() [ "ExplicitUse"(ptr addrspace(3) @llvm.amdgcn.module.lds) ]
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; CHECK-NEXT: call void @func()
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; CHECK-NEXT: ret void
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;
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call void @func()
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ret void
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}
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define void @func() {
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; CHECK-LABEL: define void @func() {
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; CHECK-NEXT: [[DEC:%.*]] = atomicrmw fsub ptr addrspace(3) @llvm.amdgcn.module.lds, float 1.000000e+00 monotonic, align 8
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; CHECK-NEXT: [[UNUSED0:%.*]] = atomicrmw add ptr addrspace(1) @ignored, i64 1 monotonic, align 8
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; CHECK-NEXT: ret void
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;
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%dec = atomicrmw fsub ptr addrspace(3) @tolower, float 1.0 monotonic
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%unused0 = atomicrmw add ptr addrspace(1) @ignored, i64 1 monotonic
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ret void
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}
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