commit f58b24831f7203e248798dce4c62bf61c51ba15d
author Alexey Frunze <Alexey.Frunze@imgtec.com> Fri Sep 02 22:14:06 2016 -0700
committer Alexey Frunze <Alexey.Frunze@imgtec.com> Thu Sep 15 19:11:14 2016 -0700
tree ab7c886781ba6328b350513352b763cd433627a3
parent 7d26164308e9eab5c596a19b841e4ab1c27828a8

MIPS32: Improve storing of constants in fields and array elements

Test: booted MIPS32 in QEMU
Test: test-art-target-run-test-optimizing on CI20
Test: test-art-host-gtest

Change-Id: Ifcf8c1e215e3768711c391e8da6f663bba71f8d9

compiler/utils/mips/assembler_mips_test.cc

diff --git a/compiler/utils/mips/assembler_mips_test.cc b/compiler/utils/mips/assembler_mips_test.cc
index a92455f..a9abf2f 100644
--- a/compiler/utils/mips/assembler_mips_test.cc
+++ b/compiler/utils/mips/assembler_mips_test.cc
@@ -1977,6 +1977,85 @@
   DriverStr(expected, "StoreDToOffset");
 }
 
+TEST_F(AssemblerMIPSTest, StoreConstToOffset) {
+  __ StoreConstToOffset(mips::kStoreByte, 0xFF, mips::A1, +0, mips::T8);
+  __ StoreConstToOffset(mips::kStoreHalfword, 0xFFFF, mips::A1, +0, mips::T8);
+  __ StoreConstToOffset(mips::kStoreWord, 0x12345678, mips::A1, +0, mips::T8);
+  __ StoreConstToOffset(mips::kStoreDoubleword, 0x123456789ABCDEF0, mips::A1, +0, mips::T8);
+
+  __ StoreConstToOffset(mips::kStoreByte, 0, mips::A1, +0, mips::T8);
+  __ StoreConstToOffset(mips::kStoreHalfword, 0, mips::A1, +0, mips::T8);
+  __ StoreConstToOffset(mips::kStoreWord, 0, mips::A1, +0, mips::T8);
+  __ StoreConstToOffset(mips::kStoreDoubleword, 0, mips::A1, +0, mips::T8);
+
+  __ StoreConstToOffset(mips::kStoreDoubleword, 0x1234567812345678, mips::A1, +0, mips::T8);
+  __ StoreConstToOffset(mips::kStoreDoubleword, 0x1234567800000000, mips::A1, +0, mips::T8);
+  __ StoreConstToOffset(mips::kStoreDoubleword, 0x0000000012345678, mips::A1, +0, mips::T8);
+
+  __ StoreConstToOffset(mips::kStoreWord, 0, mips::T8, +0, mips::T8);
+  __ StoreConstToOffset(mips::kStoreWord, 0x12345678, mips::T8, +0, mips::T8);
+
+  __ StoreConstToOffset(mips::kStoreWord, 0, mips::A1, -0xFFF0, mips::T8);
+  __ StoreConstToOffset(mips::kStoreWord, 0x12345678, mips::A1, +0xFFF0, mips::T8);
+
+  __ StoreConstToOffset(mips::kStoreWord, 0, mips::T8, -0xFFF0, mips::T8);
+  __ StoreConstToOffset(mips::kStoreWord, 0x12345678, mips::T8, +0xFFF0, mips::T8);
+
+  const char* expected =
+      "ori $t8, $zero, 0xFF\n"
+      "sb $t8, 0($a1)\n"
+      "ori $t8, $zero, 0xFFFF\n"
+      "sh $t8, 0($a1)\n"
+      "lui $t8, 0x1234\n"
+      "ori $t8, $t8, 0x5678\n"
+      "sw $t8, 0($a1)\n"
+      "lui $t8, 0x9ABC\n"
+      "ori $t8, $t8, 0xDEF0\n"
+      "sw $t8, 0($a1)\n"
+      "lui $t8, 0x1234\n"
+      "ori $t8, $t8, 0x5678\n"
+      "sw $t8, 4($a1)\n"
+
+      "sb $zero, 0($a1)\n"
+      "sh $zero, 0($a1)\n"
+      "sw $zero, 0($a1)\n"
+      "sw $zero, 0($a1)\n"
+      "sw $zero, 4($a1)\n"
+
+      "lui $t8, 0x1234\n"
+      "ori $t8, $t8, 0x5678\n"
+      "sw $t8, 0($a1)\n"
+      "sw $t8, 4($a1)\n"
+      "sw $zero, 0($a1)\n"
+      "lui $t8, 0x1234\n"
+      "ori $t8, $t8, 0x5678\n"
+      "sw $t8, 4($a1)\n"
+      "lui $t8, 0x1234\n"
+      "ori $t8, $t8, 0x5678\n"
+      "sw $t8, 0($a1)\n"
+      "sw $zero, 4($a1)\n"
+
+      "sw $zero, 0($t8)\n"
+      "lui $at, 0x1234\n"
+      "ori $at, $at, 0x5678\n"
+      "sw $at, 0($t8)\n"
+
+      "addiu $at, $a1, -0x7FF8\n"
+      "sw $zero, -0x7FF8($at)\n"
+      "addiu $at, $a1, 0x7FF8\n"
+      "lui $t8, 0x1234\n"
+      "ori $t8, $t8, 0x5678\n"
+      "sw $t8, 0x7FF8($at)\n"
+
+      "addiu $at, $t8, -0x7FF8\n"
+      "sw $zero, -0x7FF8($at)\n"
+      "addiu $at, $t8, 0x7FF8\n"
+      "lui $t8, 0x1234\n"
+      "ori $t8, $t8, 0x5678\n"
+      "sw $t8, 0x7FF8($at)\n";
+  DriverStr(expected, "StoreConstToOffset");
+}
+
 TEST_F(AssemblerMIPSTest, B) {
   mips::MipsLabel label1, label2;
   __ B(&label1);