e39f6c1844
There are many tests that specify a target triple/CPU flags but no DataLayout which can lead to IR being generated that has unusual behaviour. This commit attempts to use the default DataLayout based on the relevant flags if there is no explicit override on the command line or in the IR file. One thing that is not currently possible to differentiate from a missing datalayout `target datalayout = ""` in the IR file since the current APIs don't allow detecting this case. If it is considered useful to support this case (instead of passing "-data-layout=" on the command line), I can change IR parsers to track whether they have seen such a directive and change the callback type. Differential Revision: https://reviews.llvm.org/D141060
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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