src/platform-linux.cc - Issue 11428137: ARM: Make use of d16-d31 when available.

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Unified Diff: src/platform-linux.cc

Issue 11428137: ARM: Make use of d16-d31 when available. (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge

Patch Set: Use an ExternalReference to check CpuFeatures in generated code Created 7 years, 11 months ago

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Index: src/platform-linux.cc

diff --git a/src/platform-linux.cc b/src/platform-linux.cc

index 645b83377bb62e79dc4eb0ef0a723d94d2889137..a79922fb0ed20f61b415e7cd0d6e8db5323093fe 100644

--- a/src/platform-linux.cc

+++ b/src/platform-linux.cc

@@ -156,10 +156,17 @@ bool OS::ArmCpuHasFeature(CpuFeature feature) {

case SUDIV:

search_string = "idiva";

break;

+ case VFP32DREGS:

+ // This case is handled specially below.

+ break;

default:

UNREACHABLE();

}

+ if (feature == VFP32DREGS) {

+ return ArmCpuHasFeature(VFP3) && !CPUInfoContainsString("d16");

+ }

if (CPUInfoContainsString(search_string)) {

return true;

}