ARM: Improve the code generated for HCondition with a constant input

Test: m test-art-target-run-test-409-materialized-condition
Test: m test-art-target-run-test-570-checker-select
Change-Id: Ie3418fbac1d2ecb4d7fc847d4722758e1e01bc2e

1 files changed, 2 insertions, 10 deletions

diff --git a/compiler/optimizing/intrinsics_arm.cc b/compiler/optimizing/intrinsics_arm.cc
index 750f9cc213..7769b147a3 100644
--- a/compiler/optimizing/intrinsics_arm.cc
+++ b/compiler/optimizing/intrinsics_arm.cc
@@ -2599,11 +2599,7 @@ void IntrinsicCodeGeneratorARM::VisitFloatIsInfinite(HInvoke* invoke) {
   // We don't care about the sign bit, so shift left.
   __ Lsl(out, out, 1);
   __ eor(out, out, ShifterOperand(infinity));
-  // If the result is 0, then it has 32 leading zeros, and less than that otherwise.
-  __ clz(out, out);
-  // Any number less than 32 logically shifted right by 5 bits results in 0;
-  // the same operation on 32 yields 1.
-  __ Lsr(out, out, 5);
+  codegen_->GenerateConditionWithZero(kCondEQ, out, out);
 }
 
 void IntrinsicLocationsBuilderARM::VisitDoubleIsInfinite(HInvoke* invoke) {
@@ -2626,11 +2622,7 @@ void IntrinsicCodeGeneratorARM::VisitDoubleIsInfinite(HInvoke* invoke) {
   __ eor(out, out, ShifterOperand(infinity_high2));
   // We don't care about the sign bit, so shift left.
   __ orr(out, IP, ShifterOperand(out, LSL, 1));
-  // If the result is 0, then it has 32 leading zeros, and less than that otherwise.
-  __ clz(out, out);
-  // Any number less than 32 logically shifted right by 5 bits results in 0;
-  // the same operation on 32 yields 1.
-  __ Lsr(out, out, 5);
+  codegen_->GenerateConditionWithZero(kCondEQ, out, out);
 }
 
 void IntrinsicLocationsBuilderARM::VisitReferenceGetReferent(HInvoke* invoke) {