vm: Enable fast multiply on perf builds too

Change-Id: I74d152ea9cfe5b15daa9a8353ca27d8afa7474d2

5 files changed, 2 insertions, 13 deletions

diff --git a/vm/compiler/codegen/arm/ArmLIR.h b/vm/compiler/codegen/arm/ArmLIR.h
index 9b404af6a..da99410c2 100644
--- a/vm/compiler/codegen/arm/ArmLIR.h
+++ b/vm/compiler/codegen/arm/ArmLIR.h
@@ -640,10 +640,8 @@ typedef enum ArmOpcode {
     kThumb2Dmb,          /* dmb [1111001110111111100011110101] option[3-0] */
     kThumb2LdrPcReln12,  /* ldr rd,[pc,-#imm12] [1111100011011111] rt[15-12]
                                   imm12[11-0] */
-#ifndef WITH_QC_PERF
     kThumb2RsbRRR,       /* rsb [111010111101] rn[19..16] [0000] rd[11..8]
                                   [0000] rm[3..0] */
-#endif
     kThumbUndefined,     /* undefined [11011110xxxxxxxx] */
     kArmLast,
 } ArmOpcode;
diff --git a/vm/compiler/codegen/arm/Assemble.cpp b/vm/compiler/codegen/arm/Assemble.cpp
index 5cc35cc79..96a1b69e5 100644
--- a/vm/compiler/codegen/arm/Assemble.cpp
+++ b/vm/compiler/codegen/arm/Assemble.cpp
@@ -908,13 +908,11 @@ ArmEncodingMap EncodingMap[kArmLast] = {
                  kFmtUnused, -1, -1,
                  IS_BINARY_OP | REG_DEF0 | REG_USE_PC | IS_LOAD,
                  "ldr", "r!0d, [r15pc, -#!1d]", 2),
-#ifndef WITH_QC_PERF
     ENCODING_MAP(kThumb2RsbRRR,  0xebd00000, /* setflags encoding */
                  kFmtBitBlt, 11, 8, kFmtBitBlt, 19, 16, kFmtBitBlt, 3, 0,
                  kFmtShift, -1, -1,
                  IS_QUAD_OP | REG_DEF0_USE12 | SETS_CCODES,
                  "rsb", "r!0d, r!1d, r!2d!3H", 2),
-#endif
     ENCODING_MAP(kThumbUndefined,       0xde00,
                  kFmtUnused, -1, -1, kFmtUnused, -1, -1, kFmtUnused, -1, -1,
                  kFmtUnused, -1, -1, NO_OPERAND,
diff --git a/vm/compiler/codegen/arm/CodegenDriver.cpp b/vm/compiler/codegen/arm/CodegenDriver.cpp
index e8b497c90..b61b89407 100644
--- a/vm/compiler/codegen/arm/CodegenDriver.cpp
+++ b/vm/compiler/codegen/arm/CodegenDriver.cpp
@@ -2342,14 +2342,7 @@ static bool handleEasyMultiply(CompilationUnit *cUnit,
     } else {
         // Reverse subtract: (src << (shift + 1)) - src.
         assert(powerOfTwoMinusOne);
-#ifdef WITH_QC_PERF
-        // TODO: rsb dst, src, src lsl#lowestSetBit(lit + 1)
-        int tReg = dvmCompilerAllocTemp(cUnit);
-        opRegRegImm(cUnit, kOpLsl, tReg, rlSrc.lowReg, lowestSetBit(lit + 1));
-        opRegRegReg(cUnit, kOpSub, rlResult.lowReg, tReg, rlSrc.lowReg);
-#else
         genMultiplyByShiftAndReverseSubtract(cUnit, rlSrc, rlResult, lowestSetBit(lit + 1));
-#endif
     }
     storeValue(cUnit, rlDest, rlResult);
     return true;
diff --git a/vm/compiler/codegen/arm/Thumb/Gen.cpp b/vm/compiler/codegen/arm/Thumb/Gen.cpp
index 52d492c32..aa11f2cc8 100644
--- a/vm/compiler/codegen/arm/Thumb/Gen.cpp
+++ b/vm/compiler/codegen/arm/Thumb/Gen.cpp
@@ -275,7 +275,6 @@ static void genMultiplyByTwoBitMultiplier(CompilationUnit *cUnit,
     opRegRegImm(cUnit, kOpMul, rlResult.lowReg, rlSrc.lowReg, lit);
 }
 
-#ifndef WITH_QC_PERF
 static void genMultiplyByShiftAndReverseSubtract(CompilationUnit *cUnit,
         RegLocation rlSrc, RegLocation rlResult, int lit)
 {
@@ -284,6 +283,7 @@ static void genMultiplyByShiftAndReverseSubtract(CompilationUnit *cUnit,
     opRegRegReg(cUnit, kOpSub, rlResult.lowReg, tReg, rlSrc.lowReg);
 }
 
+#ifndef WITH_QC_PERF
 /*
  * Generate array load
  */
diff --git a/vm/compiler/codegen/arm/Thumb2/Gen.cpp b/vm/compiler/codegen/arm/Thumb2/Gen.cpp
index d49f027b5..57e51a907 100644
--- a/vm/compiler/codegen/arm/Thumb2/Gen.cpp
+++ b/vm/compiler/codegen/arm/Thumb2/Gen.cpp
@@ -476,7 +476,6 @@ static void genMultiplyByTwoBitMultiplier(CompilationUnit *cUnit,
     }
 }
 
-#ifndef WITH_QC_PERF
 static void genMultiplyByShiftAndReverseSubtract(CompilationUnit *cUnit,
         RegLocation rlSrc, RegLocation rlResult, int lit)
 {
@@ -484,6 +483,7 @@ static void genMultiplyByShiftAndReverseSubtract(CompilationUnit *cUnit,
             encodeShift(kArmLsl, lit));
 }
 
+#ifndef WITH_QC_PERF
 /*
  * Generate array load.
  * For wide array access using scale, combine add with shift.