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TheRock/compiler/amd-llvm/llvm/test/CodeGen/AMDGPU/lower-module-lds-constantexpr-phi.ll
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2026-09-02 16:34:47 -07:00

46 lines
1.5 KiB
LLVM

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -S -mtriple=amdgcn-- -amdgpu-lower-module-lds --amdgpu-lower-module-lds-strategy=module < %s | FileCheck %s
; RUN: opt -S -mtriple=amdgcn-- -passes=amdgpu-lower-module-lds --amdgpu-lower-module-lds-strategy=module < %s | FileCheck %s
@var = addrspace(3) global i32 poison, align 4
; Regression test. Duplicate constantexpr in phi nodes shall not emit broken IR
define amdgpu_kernel void @func(i32 %c) {
; CHECK-LABEL: @func(
; CHECK-NEXT: entry:
; CHECK-NEXT: switch i32 [[C:%.*]], label [[RETURN:%.*]] [
; CHECK-NEXT: i32 0, label [[BB0:%.*]]
; CHECK-NEXT: i32 1, label [[BB1:%.*]]
; CHECK-NEXT: ]
; CHECK: bb0:
; CHECK-NEXT: [[TMP0:%.*]] = addrspacecast ptr addrspace(3) @llvm.amdgcn.kernel.func.lds to ptr
; CHECK-NEXT: br label [[BB2:%.*]]
; CHECK: bb1:
; CHECK-NEXT: [[TMP1:%.*]] = addrspacecast ptr addrspace(3) @llvm.amdgcn.kernel.func.lds to ptr
; CHECK-NEXT: br label [[BB2]]
; CHECK: bb2:
; CHECK-NEXT: [[TMP:%.*]] = phi ptr [ [[TMP0]], [[BB0]] ], [ [[TMP1]], [[BB1]] ]
; CHECK-NEXT: br label [[RETURN]]
; CHECK: return:
; CHECK-NEXT: ret void
;
entry:
switch i32 %c, label %return [
i32 0, label %bb0
i32 1, label %bb1
]
bb0:
br label %bb2
bb1:
br label %bb2
bb2:
%tmp = phi ptr [ addrspacecast (ptr addrspace(3) @var to ptr), %bb0 ], [ addrspacecast (ptr addrspace(3) @var to ptr), %bb1 ]
br label %return
return:
ret void
}