d77ae7f251
Renames the current lowering scheme to "module" and introduces two new ones, "kernel" and "table", plus a "hybrid" that chooses between those three on a per-variable basis. Unit tests are set up to pass with the default lowering of "module" or "hybrid" with this patch defaulting to "module", which will be a less dramatic codegen change relative to the current. This reflects the sparsity of test coverage for the table lowering method. Hybrid is better than module in every respect and will be default in a subsequent patch. Reviewed By: arsenm Differential Revision: https://reviews.llvm.org/D139433
46 lines
1.5 KiB
LLVM
46 lines
1.5 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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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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@var = addrspace(3) global i32 undef, align 4
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; Regression test. Duplicate constantexpr in phi nodes shall not emit broken IR
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define amdgpu_kernel void @func(i32 %c) {
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; CHECK-LABEL: @func(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: switch i32 [[C:%.*]], label [[RETURN:%.*]] [
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; CHECK-NEXT: i32 0, label [[BB0:%.*]]
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; CHECK-NEXT: i32 1, label [[BB1:%.*]]
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; CHECK-NEXT: ]
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; CHECK: bb0:
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; CHECK-NEXT: [[TMP0:%.*]] = addrspacecast ptr addrspace(3) @llvm.amdgcn.kernel.func.lds to ptr
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; CHECK-NEXT: br label [[BB2:%.*]]
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; CHECK: bb1:
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; CHECK-NEXT: [[TMP1:%.*]] = addrspacecast ptr addrspace(3) @llvm.amdgcn.kernel.func.lds to ptr
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; CHECK-NEXT: br label [[BB2]]
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; CHECK: bb2:
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; CHECK-NEXT: [[TMP:%.*]] = phi ptr [ [[TMP0]], [[BB0]] ], [ [[TMP1]], [[BB1]] ]
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; CHECK-NEXT: br label [[RETURN]]
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; CHECK: return:
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; CHECK-NEXT: ret void
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;
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entry:
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switch i32 %c, label %return [
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i32 0, label %bb0
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i32 1, label %bb1
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]
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bb0:
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br label %bb2
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bb1:
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br label %bb2
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bb2:
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%tmp = phi ptr [ addrspacecast (ptr addrspace(3) @var to ptr), %bb0 ], [ addrspacecast (ptr addrspace(3) @var to ptr), %bb1 ]
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br label %return
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return:
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ret void
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}
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