AMDGPU: Enable IPRA

[rampitec]

A test showing real codegen bonus is needed.

[arsenm]

In D37173#855723, @rampitec wrote:

A test showing real codegen bonus is needed.

ipra.ll already does this, the extra run line just shows the change in the default.

[rampitec]

LGTM

[arsenm]

r319256

lib/Target/AMDGPU/AMDGPUTargetMachine.h

public:
   GCNTargetMachine(const Target &T, const Triple &TT, StringRef CPU,
                    StringRef FS, TargetOptions Options,
                    Optional<Reloc::Model> RM, Optional<CodeModel::Model> CM,
                    CodeGenOpt::Level OL, bool JIT);
 
   TargetPassConfig *createPassConfig(PassManagerBase &PM) override;
 
   const SISubtarget *getSubtargetImpl(const Function &) const override;
+
+  bool useIPRA() const override {
+    return true;
+  }
 };
 
 } // end namespace llvm
 
 #endif // LLVM_LIB_TARGET_AMDGPU_AMDGPUTARGETMACHINE_H

test/CodeGen/AMDGPU/byval-frame-setup.ll

-; RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=fiji -verify-machineinstrs < %s | FileCheck -enable-var-scope -check-prefixes=GCN,VI %s
-; RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=hawaii -verify-machineinstrs < %s | FileCheck -enable-var-scope -check-prefixes=GCN,CI %s
+; RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=fiji -enable-ipra=0 -verify-machineinstrs < %s | FileCheck -enable-var-scope -check-prefixes=GCN,VI %s
+; RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=hawaii -enable-ipra=0 -verify-machineinstrs < %s | FileCheck -enable-var-scope -check-prefixes=GCN,CI %s
 
 %struct.ByValStruct = type { [4 x i32] }
 
 ; GCN-LABEL: {{^}}void_func_byval_struct:
 ; GCN: s_mov_b32 s5, s32
 ; GCN: buffer_load_dword [[LOAD0:v[0-9]+]], off, s[0:3], s5 offset:4{{$}}
 ; GCN-NOT: s32
 ; GCN: buffer_store_dword [[LOAD0]], off, s[0:3], s5 offset:4{{$}}

test/CodeGen/AMDGPU/call-graph-register-usage.ll

-; RUN: llc -mtriple=amdgcn-amd-amdhsa -verify-machineinstrs < %s | FileCheck -check-prefixes=GCN,CI %s
-; RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=fiji -verify-machineinstrs < %s | FileCheck -check-prefixes=GCN,VI,VI-NOBUG %s
-; RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=iceland -verify-machineinstrs < %s | FileCheck -check-prefixes=GCN,VI,VI-BUG %s
+; RUN: llc -mtriple=amdgcn-amd-amdhsa -enable-ipra=0 -verify-machineinstrs < %s | FileCheck -check-prefixes=GCN,CI %s
+; RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=fiji -enable-ipra=0 -verify-machineinstrs < %s | FileCheck -check-prefixes=GCN,VI,VI-NOBUG %s
+; RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=iceland -enable-ipra=0 -verify-machineinstrs < %s | FileCheck -check-prefixes=GCN,VI,VI-BUG %s
 
 ; Make sure to run a GPU with the SGPR allocation bug.
 
 ; GCN-LABEL: {{^}}use_vcc:
 ; GCN: ; NumSgprs: 34
 ; GCN: ; NumVgprs: 0
 define void @use_vcc() #1 {
   call void asm sideeffect "", "~{vcc}" () #0

test/CodeGen/AMDGPU/call-preserved-registers.ll

-; RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=fiji -verify-machineinstrs < %s | FileCheck -check-prefix=GCN %s
-; RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=hawaii -verify-machineinstrs < %s | FileCheck -check-prefix=GCN %s
-; RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx900 -verify-machineinstrs < %s | FileCheck -check-prefix=GCN %s
+; RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=fiji -enable-ipra=0 -verify-machineinstrs < %s | FileCheck -check-prefix=GCN %s
+; RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=hawaii -enable-ipra=0 -verify-machineinstrs < %s | FileCheck -check-prefix=GCN %s
+; RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx900 -enable-ipra=0 -verify-machineinstrs < %s | FileCheck -check-prefix=GCN %s
 
 declare void @external_void_func_void() #0
 
 ; GCN-LABEL: {{^}}test_kernel_call_external_void_func_void_clobber_s30_s31_call_external_void_func_void:
 ; GCN: s_mov_b32 s33, s7
 ; GCN: s_getpc_b64 s[34:35]
 ; GCN-NEXT: s_add_u32 s34, s34,
 ; GCN-NEXT: s_addc_u32 s35, s35,

test/CodeGen/AMDGPU/callee-special-input-sgprs.ll

-; RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=kaveri -verify-machineinstrs < %s | FileCheck -enable-var-scope -check-prefixes=GCN,CIVI %s
-; RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx900 -verify-machineinstrs < %s | FileCheck -enable-var-scope -check-prefixes=GCN,GFX9 %s
+; RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=kaveri -enable-ipra=0 -verify-machineinstrs < %s | FileCheck -enable-var-scope -check-prefixes=GCN,CIVI %s
+; RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx900 -enable-ipra=0 -verify-machineinstrs < %s | FileCheck -enable-var-scope -check-prefixes=GCN,GFX9 %s
 
 ; GCN-LABEL: {{^}}use_dispatch_ptr:
 ; GCN: s_load_dword s{{[0-9]+}}, s[6:7], 0x0
 define void @use_dispatch_ptr() #1 {
   %dispatch_ptr = call noalias i8 addrspace(2)* @llvm.amdgcn.dispatch.ptr() #0
   %header_ptr = bitcast i8 addrspace(2)* %dispatch_ptr to i32 addrspace(2)*
   %value = load volatile i32, i32 addrspace(2)* %header_ptr
   ret void

test/CodeGen/AMDGPU/callee-special-input-vgprs.ll

-; RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=kaveri -verify-machineinstrs < %s | FileCheck -enable-var-scope -check-prefix=GCN %s
+; RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=kaveri -enable-ipra=0 -verify-machineinstrs < %s | FileCheck -enable-var-scope -check-prefix=GCN %s
 
 ; GCN-LABEL: {{^}}use_workitem_id_x:
 ; GCN: s_waitcnt
 ; GCN-NEXT: flat_store_dword v{{\[[0-9]:[0-9]+\]}}, v0
 ; GCN-NEXT: s_waitcnt
 ; GCN-NEXT: s_setpc_b64
 define void @use_workitem_id_x() #1 {
   %val = call i32 @llvm.amdgcn.workitem.id.x()

test/CodeGen/AMDGPU/ipra.ll

 ; RUN: llc -mtriple=amdgcn-amd-amdhsa -verify-machineinstrs -enable-ipra -amdgpu-sroa=0 < %s | FileCheck -check-prefix=GCN %s
+; RUN: llc -mtriple=amdgcn-amd-amdhsa -verify-machineinstrs -amdgpu-sroa=0 < %s | FileCheck -check-prefix=GCN %s
 
 ; Kernels are not called, so there is no call preserved mask.
 ; GCN-LABEL: {{^}}kernel:
 ; GCN: flat_store_dword
 define amdgpu_kernel void @kernel(i32 addrspace(1)* %out) #0 {
 entry:
   store i32 0, i32 addrspace(1)* %out
   ret void

test/CodeGen/AMDGPU/sibling-call.ll

-; RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=fiji -mattr=-flat-for-global -amdgpu-sroa=0 -verify-machineinstrs < %s | FileCheck -enable-var-scope -check-prefixes=GCN,VI,MESA %s
-; RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=hawaii -amdgpu-sroa=0 -verify-machineinstrs < %s | FileCheck -enable-var-scope -check-prefixes=GCN,CI,MESA %s
-; RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx900 -mattr=-flat-for-global -amdgpu-sroa=0 -verify-machineinstrs < %s | FileCheck -enable-var-scope -check-prefixes=GCN,GFX9,VI,MESA %s
+; RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=fiji -mattr=-flat-for-global -enable-ipra=0 -amdgpu-sroa=0 -verify-machineinstrs < %s | FileCheck -enable-var-scope -check-prefixes=GCN,VI,MESA %s
+; RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=hawaii -enable-ipra=0 -amdgpu-sroa=0 -verify-machineinstrs < %s | FileCheck -enable-var-scope -check-prefixes=GCN,CI,MESA %s
+; RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx900 -mattr=-flat-for-global -enable-ipra=0 -amdgpu-sroa=0 -verify-machineinstrs < %s | FileCheck -enable-var-scope -check-prefixes=GCN,GFX9,VI,MESA %s
 
 ; GCN-LABEL: {{^}}i32_fastcc_i32_i32:
 ; GCN: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
 ; GCN-NEXT: v_add_i32_e32 v0, vcc, v1, v0
 ; GCN-NEXT: s_setpc_b64
 define fastcc i32 @i32_fastcc_i32_i32(i32 %arg0, i32 %arg1) #1 {
   %add0 = add i32 %arg0, %arg1
   ret i32 %add0