Implement Math.rint Intrinsic for ARM32.
Test: m test-art-host
Test: m test-art-target
Test: 082-inline-execute
Change-Id: If73bcea5f9fb24942c7390c6ccbcfb012f8951c7
diff --git a/compiler/optimizing/intrinsics_arm_vixl.cc b/compiler/optimizing/intrinsics_arm_vixl.cc
index 91d9c56..1a10173 100644
--- a/compiler/optimizing/intrinsics_arm_vixl.cc
+++ b/compiler/optimizing/intrinsics_arm_vixl.cc
@@ -514,6 +514,18 @@
__ Vsqrt(OutputDRegister(invoke), InputDRegisterAt(invoke, 0));
}
+void IntrinsicLocationsBuilderARMVIXL::VisitMathRint(HInvoke* invoke) {
+ if (features_.HasARMv8AInstructions()) {
+ CreateFPToFPLocations(arena_, invoke);
+ }
+}
+
+void IntrinsicCodeGeneratorARMVIXL::VisitMathRint(HInvoke* invoke) {
+ DCHECK(codegen_->GetInstructionSetFeatures().HasARMv8AInstructions());
+ ArmVIXLAssembler* assembler = GetAssembler();
+ __ Vrintn(F64, F64, OutputDRegister(invoke), InputDRegisterAt(invoke, 0));
+}
+
void IntrinsicLocationsBuilderARMVIXL::VisitMemoryPeekByte(HInvoke* invoke) {
CreateIntToIntLocations(arena_, invoke);
}
@@ -2772,7 +2784,6 @@
UNIMPLEMENTED_INTRINSIC(ARMVIXL, MathMaxFloatFloat)
UNIMPLEMENTED_INTRINSIC(ARMVIXL, MathMinLongLong)
UNIMPLEMENTED_INTRINSIC(ARMVIXL, MathMaxLongLong)
-UNIMPLEMENTED_INTRINSIC(ARMVIXL, MathRint)
UNIMPLEMENTED_INTRINSIC(ARMVIXL, MathRoundDouble) // Could be done by changing rounding mode, maybe?
UNIMPLEMENTED_INTRINSIC(ARMVIXL, MathRoundFloat) // Could be done by changing rounding mode, maybe?
UNIMPLEMENTED_INTRINSIC(ARMVIXL, UnsafeCASLong) // High register pressure.
diff --git a/test/082-inline-execute/src/Main.java b/test/082-inline-execute/src/Main.java
index 06f193a..fad8a9f 100644
--- a/test/082-inline-execute/src/Main.java
+++ b/test/082-inline-execute/src/Main.java
@@ -730,16 +730,19 @@
Math.rint(+2.1);
Assert.assertEquals(Math.rint(+0.0), +0.0d, 0.0);
Assert.assertEquals(Math.rint(-0.0), -0.0d, 0.0);
+ Assert.assertEquals(Math.rint(+0.5), +0.0d, 0.0); // expects tie-to-even
Assert.assertEquals(Math.rint(+2.0), +2.0d, 0.0);
Assert.assertEquals(Math.rint(+2.1), +2.0d, 0.0);
- Assert.assertEquals(Math.rint(+2.5), +2.0d, 0.0);
+ Assert.assertEquals(Math.rint(+2.5), +2.0d, 0.0); // expects tie-to-even
Assert.assertEquals(Math.rint(+2.9), +3.0d, 0.0);
Assert.assertEquals(Math.rint(+3.0), +3.0d, 0.0);
+ Assert.assertEquals(Math.rint(+3.5), +4.0d, 0.0); // expects tie-to-even
Assert.assertEquals(Math.rint(-2.0), -2.0d, 0.0);
Assert.assertEquals(Math.rint(-2.1), -2.0d, 0.0);
- Assert.assertEquals(Math.rint(-2.5), -2.0d, 0.0);
+ Assert.assertEquals(Math.rint(-2.5), -2.0d, 0.0); // expects tie-to-even
Assert.assertEquals(Math.rint(-2.9), -3.0d, 0.0);
Assert.assertEquals(Math.rint(-3.0), -3.0d, 0.0);
+ Assert.assertEquals(Math.rint(-3.5), -4.0d, 0.0); // expects tie-to-even
// 2^52 - 1.5
Assert.assertEquals(Math.rint(Double.longBitsToDouble(0x432FFFFFFFFFFFFDl)),
Double.longBitsToDouble(0x432FFFFFFFFFFFFCl), 0.0);
