From: sgjesse@chromium.org <sgjesse@chromium.org@ce2b1a6d-e550-0410-aec6-3dcde31c8c00>
Date: Thu, 3 Feb 2011 08:59:14 +0000 (+0000)
Subject: Implements Modulo operation on ARM for DoArithmeticD.
X-Git-Tag: upstream/4.7.83~20358
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=d86e430630a163214893e0a1b6f3673b600f9c20;p=platform%2Fupstream%2Fv8.git

Implements Modulo operation on ARM for DoArithmeticD.

BUG=none
TEST=none

Patch by Rodolph Perfetta from ARM Ltd.

Review URL: http://codereview.chromium.org/6248004


git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@6599 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
---

diff --git a/src/arm/lithium-codegen-arm.cc b/src/arm/lithium-codegen-arm.cc
index a1adae3..408f822 100644
--- a/src/arm/lithium-codegen-arm.cc
+++ b/src/arm/lithium-codegen-arm.cc
@@ -1398,7 +1398,18 @@ void LCodeGen::DoArithmeticD(LArithmeticD* instr) {
       __ vdiv(left, left, right);
       break;
     case Token::MOD: {
-      Abort("DoArithmeticD unimplemented for MOD.");
+      // Save r0-r3 on the stack.
+      __ stm(db_w, sp, r0.bit() | r1.bit() | r2.bit() | r3.bit());
+
+      __ PrepareCallCFunction(4, scratch0());
+      __ vmov(r0, r1, left);
+      __ vmov(r2, r3, right);
+      __ CallCFunction(ExternalReference::double_fp_operation(Token::MOD), 4);
+      // Move the result in the double result register.
+      __ vmov(ToDoubleRegister(instr->result()), r0, r1);
+
+      // Restore r0-r3.
+      __ ldm(ia_w, sp, r0.bit() | r1.bit() | r2.bit() | r3.bit());
       break;
     }
     default: