[test] Enable baseline tests on riscv64

Also remove remnants of x87 port.

Change-Id: I3376539504d2a04c9f918ab39d0976eaca31782f
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3097866
Auto-Submit: Georg Neis <neis@chromium.org>
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/master@{#76313}

test/cctest/compiler/test-code-generator.cc

@@ -1077,8 +1077,7 @@ class CodeGeneratorTester {
     defined(V8_TARGET_ARCH_PPC) || defined(V8_TARGET_ARCH_PPC64)
     // Only folding register pushes is supported on ARM.
     bool supported = ((push_type & CodeGenerator::kRegisterPush) == push_type);
-#elif defined(V8_TARGET_ARCH_X64) || defined(V8_TARGET_ARCH_IA32) || \
-    defined(V8_TARGET_ARCH_X87)
+#elif defined(V8_TARGET_ARCH_X64) || defined(V8_TARGET_ARCH_IA32)
     bool supported = ((push_type & CodeGenerator::kScalarPush) == push_type);
 #else
     bool supported = false;

test/cctest/compiler/test-run-machops.cc

@@ -4580,7 +4580,7 @@ uint64_t ToInt64(uint32_t low, uint32_t high) {
   return (static_cast<uint64_t>(high) << 32) | static_cast<uint64_t>(low);
 }
 
-#if V8_TARGET_ARCH_32_BIT && !V8_TARGET_ARCH_X87
+#if V8_TARGET_ARCH_32_BIT
 TEST(RunInt32PairAdd) {
   BufferedRawMachineAssemblerTester<int32_t> m(
       MachineType::Uint32(), MachineType::Uint32(), MachineType::Uint32(),

test/cctest/test-regexp.cc

@@ -616,8 +616,6 @@ using ArchRegExpMacroAssembler = RegExpMacroAssemblerMIPS;
 using ArchRegExpMacroAssembler = RegExpMacroAssemblerMIPS;
 #elif V8_TARGET_ARCH_LOONG64
 using ArchRegExpMacroAssembler = RegExpMacroAssemblerLOONG64;
-#elif V8_TARGET_ARCH_X87
-using ArchRegExpMacroAssembler = RegExpMacroAssemblerX87;
 #elif V8_TARGET_ARCH_RISCV64
 using ArchRegExpMacroAssembler = RegExpMacroAssemblerRISCV;
 #endif

test/mjsunit/mjsunit.status

@@ -1436,7 +1436,7 @@
 
 ##############################################################################
 # TODO(v8:11421): Port baseline compiler to other architectures.
-['arch not in (x64, arm64, ia32, arm, mips64el, mipsel, loong64)', {
+['arch not in (x64, arm64, ia32, arm, mips64el, mipsel, riscv64, loong64)', {
   'baseline/*': [SKIP],
 }],