Fix building tests with partial arch codegen support

Add conditionals around more code that is only used for codegen for
specific architectures, and move a few more files into the
architecture-specific codegen lists.

Tests: ART_HOST_CODEGEN_ARCHS="x86_64 mips" m -j ART_TARGET_CODEGEN_ARCHS=svelte test-art-host
Bug: 30928847
Change-Id: I0444d15e1cafe4c9b13ff78718c3b13b544270e7
diff --git a/build/Android.common_build.mk b/build/Android.common_build.mk
index 33c2a8e..1e2cfa3 100644
--- a/build/Android.common_build.mk
+++ b/build/Android.common_build.mk
@@ -157,19 +157,14 @@
 
 ifeq ($(ART_TARGET_CODEGEN_ARCHS),all)
   ART_TARGET_CODEGEN_ARCHS := $(sort $(ART_TARGET_SUPPORTED_ARCH) $(ART_HOST_SUPPORTED_ARCH))
-  # We need to handle the fact that some compiler tests mix code from different architectures.
-  ART_TARGET_COMPILER_TESTS ?= true
 else
-  ART_TARGET_COMPILER_TESTS := false
   ifeq ($(ART_TARGET_CODEGEN_ARCHS),svelte)
     ART_TARGET_CODEGEN_ARCHS := $(sort $(ART_TARGET_ARCH_64) $(ART_TARGET_ARCH_32))
   endif
 endif
 ifeq ($(ART_HOST_CODEGEN_ARCHS),all)
   ART_HOST_CODEGEN_ARCHS := $(sort $(ART_TARGET_SUPPORTED_ARCH) $(ART_HOST_SUPPORTED_ARCH))
-  ART_HOST_COMPILER_TESTS ?= true
 else
-  ART_HOST_COMPILER_TESTS := false
   ifeq ($(ART_HOST_CODEGEN_ARCHS),svelte)
     ART_HOST_CODEGEN_ARCHS := $(sort $(ART_TARGET_CODEGEN_ARCHS) $(ART_HOST_ARCH_64) $(ART_HOST_ARCH_32))
   endif
diff --git a/build/Android.gtest.mk b/build/Android.gtest.mk
index 3d07fc0..c538c4f 100644
--- a/build/Android.gtest.mk
+++ b/build/Android.gtest.mk
@@ -299,13 +299,7 @@
 COMPILER_GTEST_COMMON_SRC_FILES_all := \
   compiler/jni/jni_cfi_test.cc \
   compiler/optimizing/codegen_test.cc \
-  compiler/optimizing/constant_folding_test.cc \
-  compiler/optimizing/dead_code_elimination_test.cc \
-  compiler/optimizing/linearize_test.cc \
-  compiler/optimizing/liveness_test.cc \
-  compiler/optimizing/live_ranges_test.cc \
   compiler/optimizing/optimizing_cfi_test.cc \
-  compiler/optimizing/register_allocator_test.cc \
 
 COMPILER_GTEST_COMMON_SRC_FILES_arm := \
   compiler/linker/arm/relative_patcher_thumb2_test.cc \
@@ -325,6 +319,16 @@
   compiler/linker/x86/relative_patcher_x86_test.cc \
   compiler/utils/x86/managed_register_x86_test.cc \
 
+# These tests are testing architecture-independent functionality, but happen
+# to use x86 codegen as part of the test.
+COMPILER_GTEST_COMMON_SRC_FILES_x86 += \
+  compiler/optimizing/constant_folding_test.cc \
+  compiler/optimizing/dead_code_elimination_test.cc \
+  compiler/optimizing/linearize_test.cc \
+  compiler/optimizing/live_ranges_test.cc \
+  compiler/optimizing/liveness_test.cc \
+  compiler/optimizing/register_allocator_test.cc \
+
 COMPILER_GTEST_COMMON_SRC_FILES_x86_64 := \
   compiler/linker/x86_64/relative_patcher_x86_64_test.cc \
 
@@ -359,9 +363,7 @@
   $(COMPILER_GTEST_COMMON_SRC_FILES_x86_64) \
 
 $(foreach arch,$(ART_TARGET_CODEGEN_ARCHS),$(eval COMPILER_GTEST_TARGET_SRC_FILES += $$(COMPILER_GTEST_TARGET_SRC_FILES_$(arch))))
-ifeq (true,$(ART_TARGET_COMPILER_TESTS))
-  COMPILER_GTEST_TARGET_SRC_FILES += $(COMPILER_GTEST_TARGET_SRC_FILES_all)
-endif
+COMPILER_GTEST_TARGET_SRC_FILES += $(COMPILER_GTEST_TARGET_SRC_FILES_all)
 
 COMPILER_GTEST_HOST_SRC_FILES := \
   $(COMPILER_GTEST_COMMON_SRC_FILES) \
@@ -396,9 +398,7 @@
   compiler/utils/x86_64/assembler_x86_64_test.cc
 
 $(foreach arch,$(ART_HOST_CODEGEN_ARCHS),$(eval COMPILER_GTEST_HOST_SRC_FILES += $$(COMPILER_GTEST_HOST_SRC_FILES_$(arch))))
-ifeq (true,$(ART_HOST_COMPILER_TESTS))
-  COMPILER_GTEST_HOST_SRC_FILES += $(COMPILER_GTEST_HOST_SRC_FILES_all)
-endif
+COMPILER_GTEST_HOST_SRC_FILES += $(COMPILER_GTEST_HOST_SRC_FILES_all)
 
 ART_TEST_CFLAGS :=
 
diff --git a/compiler/Android.mk b/compiler/Android.mk
index 6c6d99f..410b2d0 100644
--- a/compiler/Android.mk
+++ b/compiler/Android.mk
@@ -47,7 +47,6 @@
 	optimizing/code_generator_utils.cc \
 	optimizing/constant_folding.cc \
 	optimizing/dead_code_elimination.cc \
-	optimizing/dex_cache_array_fixups_arm.cc \
 	optimizing/graph_checker.cc \
 	optimizing/graph_visualizer.cc \
 	optimizing/gvn.cc \
@@ -61,7 +60,6 @@
 	optimizing/load_store_elimination.cc \
 	optimizing/locations.cc \
 	optimizing/nodes.cc \
-	optimizing/nodes_arm64.cc \
 	optimizing/optimization.cc \
 	optimizing/optimizing_compiler.cc \
 	optimizing/parallel_move_resolver.cc \
@@ -78,7 +76,6 @@
 	optimizing/ssa_liveness_analysis.cc \
 	optimizing/ssa_phi_elimination.cc \
 	optimizing/stack_map_stream.cc \
-	optimizing/x86_memory_gen.cc \
 	trampolines/trampoline_compiler.cc \
 	utils/assembler.cc \
 	utils/jni_macro_assembler.cc \
@@ -94,6 +91,7 @@
 	linker/arm/relative_patcher_arm_base.cc \
 	linker/arm/relative_patcher_thumb2.cc \
 	optimizing/code_generator_arm.cc \
+	optimizing/dex_cache_array_fixups_arm.cc \
 	optimizing/intrinsics_arm.cc \
 	utils/arm/assembler_arm.cc \
 	utils/arm/assembler_arm32.cc \
@@ -109,6 +107,7 @@
     $(LIBART_COMPILER_SRC_FILES_arm) \
 	jni/quick/arm64/calling_convention_arm64.cc \
 	linker/arm64/relative_patcher_arm64.cc \
+	optimizing/nodes_arm64.cc \
 	optimizing/code_generator_arm64.cc \
 	optimizing/instruction_simplifier_arm.cc \
 	optimizing/instruction_simplifier_arm64.cc \
@@ -144,6 +143,7 @@
 	optimizing/code_generator_x86.cc \
 	optimizing/intrinsics_x86.cc \
 	optimizing/pc_relative_fixups_x86.cc \
+	optimizing/x86_memory_gen.cc \
 	utils/x86/assembler_x86.cc \
 	utils/x86/jni_macro_assembler_x86.cc \
 	utils/x86/managed_register_x86.cc \
diff --git a/compiler/jni/jni_cfi_test.cc b/compiler/jni/jni_cfi_test.cc
index 524ce4d..4b056f5 100644
--- a/compiler/jni/jni_cfi_test.cc
+++ b/compiler/jni/jni_cfi_test.cc
@@ -104,12 +104,24 @@
     TestImpl(isa, #isa, expected_asm, expected_cfi); \
   }
 
+#ifdef ART_ENABLE_CODEGEN_arm
 TEST_ISA(kThumb2)
+#endif
+#ifdef ART_ENABLE_CODEGEN_arm64
 TEST_ISA(kArm64)
+#endif
+#ifdef ART_ENABLE_CODEGEN_x86
 TEST_ISA(kX86)
+#endif
+#ifdef ART_ENABLE_CODEGEN_x86_64
 TEST_ISA(kX86_64)
+#endif
+#ifdef ART_ENABLE_CODEGEN_mips
 TEST_ISA(kMips)
+#endif
+#ifdef ART_ENABLE_CODEGEN_mips64
 TEST_ISA(kMips64)
+#endif
 
 #endif  // ART_TARGET_ANDROID
 
diff --git a/compiler/optimizing/codegen_test.cc b/compiler/optimizing/codegen_test.cc
index 18db507..fe6c0a3 100644
--- a/compiler/optimizing/codegen_test.cc
+++ b/compiler/optimizing/codegen_test.cc
@@ -29,12 +29,6 @@
 #include "arch/x86_64/instruction_set_features_x86_64.h"
 #include "base/macros.h"
 #include "builder.h"
-#include "code_generator_arm.h"
-#include "code_generator_arm64.h"
-#include "code_generator_mips.h"
-#include "code_generator_mips64.h"
-#include "code_generator_x86.h"
-#include "code_generator_x86_64.h"
 #include "code_simulator_container.h"
 #include "common_compiler_test.h"
 #include "dex_file.h"
@@ -52,10 +46,35 @@
 #include "utils/mips64/managed_register_mips64.h"
 #include "utils/x86/managed_register_x86.h"
 
+#ifdef ART_ENABLE_CODEGEN_arm
+#include "code_generator_arm.h"
+#endif
+
+#ifdef ART_ENABLE_CODEGEN_arm64
+#include "code_generator_arm64.h"
+#endif
+
+#ifdef ART_ENABLE_CODEGEN_x86
+#include "code_generator_x86.h"
+#endif
+
+#ifdef ART_ENABLE_CODEGEN_x86_64
+#include "code_generator_x86_64.h"
+#endif
+
+#ifdef ART_ENABLE_CODEGEN_mips
+#include "code_generator_mips.h"
+#endif
+
+#ifdef ART_ENABLE_CODEGEN_mips64
+#include "code_generator_mips64.h"
+#endif
+
 #include "gtest/gtest.h"
 
 namespace art {
 
+#ifdef ART_ENABLE_CODEGEN_arm
 // Provide our own codegen, that ensures the C calling conventions
 // are preserved. Currently, ART and C do not match as R4 is caller-save
 // in ART, and callee-save in C. Alternatively, we could use or write
@@ -80,7 +99,9 @@
     blocked_register_pairs_[arm::R6_R7] = false;
   }
 };
+#endif
 
+#ifdef ART_ENABLE_CODEGEN_x86
 class TestCodeGeneratorX86 : public x86::CodeGeneratorX86 {
  public:
   TestCodeGeneratorX86(HGraph* graph,
@@ -105,6 +126,7 @@
     blocked_register_pairs_[x86::ECX_EDI] = false;
   }
 };
+#endif
 
 class InternalCodeAllocator : public CodeAllocator {
  public:
@@ -234,37 +256,54 @@
                     bool has_result,
                     Expected expected) {
   CompilerOptions compiler_options;
+#ifdef ART_ENABLE_CODEGEN_arm
   if (target_isa == kArm || target_isa == kThumb2) {
     std::unique_ptr<const ArmInstructionSetFeatures> features_arm(
         ArmInstructionSetFeatures::FromCppDefines());
     TestCodeGeneratorARM codegenARM(graph, *features_arm.get(), compiler_options);
     RunCode(&codegenARM, graph, hook_before_codegen, has_result, expected);
-  } else if (target_isa == kArm64) {
+  }
+#endif
+#ifdef ART_ENABLE_CODEGEN_arm64
+  if (target_isa == kArm64) {
     std::unique_ptr<const Arm64InstructionSetFeatures> features_arm64(
         Arm64InstructionSetFeatures::FromCppDefines());
     arm64::CodeGeneratorARM64 codegenARM64(graph, *features_arm64.get(), compiler_options);
     RunCode(&codegenARM64, graph, hook_before_codegen, has_result, expected);
-  } else if (target_isa == kX86) {
+  }
+#endif
+#ifdef ART_ENABLE_CODEGEN_x86
+  if (target_isa == kX86) {
     std::unique_ptr<const X86InstructionSetFeatures> features_x86(
         X86InstructionSetFeatures::FromCppDefines());
     TestCodeGeneratorX86 codegenX86(graph, *features_x86.get(), compiler_options);
     RunCode(&codegenX86, graph, hook_before_codegen, has_result, expected);
-  } else if (target_isa == kX86_64) {
+  }
+#endif
+#ifdef ART_ENABLE_CODEGEN_x86_64
+  if (target_isa == kX86_64) {
     std::unique_ptr<const X86_64InstructionSetFeatures> features_x86_64(
         X86_64InstructionSetFeatures::FromCppDefines());
     x86_64::CodeGeneratorX86_64 codegenX86_64(graph, *features_x86_64.get(), compiler_options);
     RunCode(&codegenX86_64, graph, hook_before_codegen, has_result, expected);
-  } else if (target_isa == kMips) {
+  }
+#endif
+#ifdef ART_ENABLE_CODEGEN_mips
+  if (target_isa == kMips) {
     std::unique_ptr<const MipsInstructionSetFeatures> features_mips(
         MipsInstructionSetFeatures::FromCppDefines());
     mips::CodeGeneratorMIPS codegenMIPS(graph, *features_mips.get(), compiler_options);
     RunCode(&codegenMIPS, graph, hook_before_codegen, has_result, expected);
-  } else if (target_isa == kMips64) {
+  }
+#endif
+#ifdef ART_ENABLE_CODEGEN_mips64
+  if (target_isa == kMips64) {
     std::unique_ptr<const Mips64InstructionSetFeatures> features_mips64(
         Mips64InstructionSetFeatures::FromCppDefines());
     mips64::CodeGeneratorMIPS64 codegenMIPS64(graph, *features_mips64.get(), compiler_options);
     RunCode(&codegenMIPS64, graph, hook_before_codegen, has_result, expected);
   }
+#endif
 }
 
 static ::std::vector<InstructionSet> GetTargetISAs() {
diff --git a/compiler/optimizing/optimizing_cfi_test.cc b/compiler/optimizing/optimizing_cfi_test.cc
index a6d234d..8c0231e 100644
--- a/compiler/optimizing/optimizing_cfi_test.cc
+++ b/compiler/optimizing/optimizing_cfi_test.cc
@@ -157,13 +157,26 @@
     TestImpl(isa, #isa, expected_asm, expected_cfi);          \
   }
 
+#ifdef ART_ENABLE_CODEGEN_arm
 TEST_ISA(kThumb2)
+#endif
+#ifdef ART_ENABLE_CODEGEN_arm64
 TEST_ISA(kArm64)
+#endif
+#ifdef ART_ENABLE_CODEGEN_x86
 TEST_ISA(kX86)
+#endif
+#ifdef ART_ENABLE_CODEGEN_x86_64
 TEST_ISA(kX86_64)
+#endif
+#ifdef ART_ENABLE_CODEGEN_mips
 TEST_ISA(kMips)
+#endif
+#ifdef ART_ENABLE_CODEGEN_mips64
 TEST_ISA(kMips64)
+#endif
 
+#ifdef ART_ENABLE_CODEGEN_arm
 TEST_F(OptimizingCFITest, kThumb2Adjust) {
   std::vector<uint8_t> expected_asm(
       expected_asm_kThumb2_adjust,
@@ -184,7 +197,9 @@
   Finish();
   Check(kThumb2, "kThumb2_adjust", expected_asm, expected_cfi);
 }
+#endif
 
+#ifdef ART_ENABLE_CODEGEN_mips
 TEST_F(OptimizingCFITest, kMipsAdjust) {
   // One NOP in delay slot, 1 << 15 NOPS have size 1 << 17 which exceeds 18-bit signed maximum.
   static constexpr size_t kNumNops = 1u + (1u << 15);
@@ -212,7 +227,9 @@
   Finish();
   Check(kMips, "kMips_adjust", expected_asm, expected_cfi);
 }
+#endif
 
+#ifdef ART_ENABLE_CODEGEN_mips64
 TEST_F(OptimizingCFITest, kMips64Adjust) {
   // One NOP in forbidden slot, 1 << 15 NOPS have size 1 << 17 which exceeds 18-bit signed maximum.
   static constexpr size_t kNumNops = 1u + (1u << 15);
@@ -240,6 +257,7 @@
   Finish();
   Check(kMips64, "kMips64_adjust", expected_asm, expected_cfi);
 }
+#endif
 
 #endif  // ART_TARGET_ANDROID
 
diff --git a/compiler/utils/jni_macro_assembler.cc b/compiler/utils/jni_macro_assembler.cc
index 797a98c..1b74313 100644
--- a/compiler/utils/jni_macro_assembler.cc
+++ b/compiler/utils/jni_macro_assembler.cc
@@ -99,6 +99,7 @@
       return MacroAsm64UniquePtr(new (arena) x86_64::X86_64JNIMacroAssembler(arena));
 #endif
     default:
+      UNUSED(arena);
       LOG(FATAL) << "Unknown/unsupported 8B InstructionSet: " << instruction_set;
       UNREACHABLE();
   }