Issue 700053003: Set the FPU precision control to double-precision.

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Issue 700053003: Set the FPU precision control to double-precision. (Closed)

Created:
6 years, 1 month ago by chunyang.dai

Modified:
6 years, 1 month ago

Reviewers:
Weiliang

CC:
v8-dev

Base URL:
https://chromium.googlesource.com/external/v8.git@bleeding_edge

Project:
v8

Visibility:
Public.

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Description

Set the FPU precision control to double-precision. The default double precision control of FPU is extended double-precision. While the number definition for JavaScript is double-precision. We use the FPU control word to set the doulbe precision and replace the original solution which store the data to memory and load it again. This patch also fixes the error that Sunspider 1.0.2 can not run with V8 if sse2 support is disabled. BUG=

Patch Set 1 #

Created: 6 years, 1 month ago

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	Unified diffs	Side-by-side diffs	Stats (+11 lines, -6 lines)			Patch
M	src/x87/lithium-codegen-x87.cc	View	2 chunks	+3 lines, -6 lines	0 comments	Download
M	src/x87/macro-assembler-x87.h	View	1 chunk	+1 line, -0 lines	0 comments	Download
M	src/x87/macro-assembler-x87.cc	View	1 chunk	+7 lines, -0 lines	0 comments	Download

Messages

Total messages: 4 (1 generated)

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Committed as r25125

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