0567f03331
By default clang emits complete contructors as alias of base constructors if they are the same. The backend is supposed to emit symbols for the alias, otherwise it causes undefined symbols. @yaxunl observed that this issue is related to the llvm options `-amdgpu-early-inline-all=true` and `-amdgpu-function-calls=false`. This issue is resolved by only inlining global values with internal linkage. The `getCalleeFunction()` in AMDGPUResourceUsageAnalysis also had to be extended to support aliases to functions. inline-calls.ll was corrected appropriately. Reviewed By: yaxunl, #amdgpu Differential Revision: https://reviews.llvm.org/D109707
34 lines
956 B
LLVM
34 lines
956 B
LLVM
; RUN: llc -mtriple amdgcn-unknown-linux-gnu -mcpu=tahiti -verify-machineinstrs < %s | FileCheck %s
|
|
; RUN: llc -mtriple amdgcn-unknown-linux-gnu -mcpu=tonga -verify-machineinstrs < %s | FileCheck %s
|
|
; RUN: llc -mtriple r600-unknown-linux-gnu -mcpu=redwood -verify-machineinstrs < %s | FileCheck %s --check-prefix=R600
|
|
|
|
; ALL-NOT: {{^}}func:
|
|
define internal i32 @func(i32 %a) {
|
|
entry:
|
|
%tmp0 = add i32 %a, 1
|
|
ret i32 %tmp0
|
|
}
|
|
|
|
; CHECK: {{^}}kernel:
|
|
; GCN-NOT: s_swappc_b64
|
|
define amdgpu_kernel void @kernel(i32 addrspace(1)* %out) {
|
|
entry:
|
|
%tmp0 = call i32 @func(i32 1)
|
|
store i32 %tmp0, i32 addrspace(1)* %out
|
|
ret void
|
|
}
|
|
|
|
; CHECK: func_alias
|
|
; R600-NOT: func_alias
|
|
@func_alias = alias i32 (i32), i32 (i32)* @func
|
|
|
|
; CHECK-NOT: {{^}}kernel3:
|
|
; GCN-NOT: s_swappc_b64
|
|
; R600: {{^}}kernel3:
|
|
define amdgpu_kernel void @kernel3(i32 addrspace(1)* %out) {
|
|
entry:
|
|
%tmp0 = call i32 @func_alias(i32 1)
|
|
store i32 %tmp0, i32 addrspace(1)* %out
|
|
ret void
|
|
}
|