Title: [195272] releases/WebKitGTK/webkit-2.10/Source/_javascript_Core
- Revision
- 195272
- Author
- [email protected]
- Date
- 2016-01-19 01:33:57 -0800 (Tue, 19 Jan 2016)
Log Message
Merge r195093 - [mips] Add countLeadingZeros32 implementation in macro assembler
https://bugs.webkit.org/show_bug.cgi?id=152886
Reviewed by Michael Saboff.
* assembler/MIPSAssembler.h:
(JSC::MIPSAssembler::lui):
(JSC::MIPSAssembler::clz):
(JSC::MIPSAssembler::addiu):
* assembler/MacroAssemblerMIPS.h:
(JSC::MacroAssemblerMIPS::and32):
(JSC::MacroAssemblerMIPS::countLeadingZeros32):
(JSC::MacroAssemblerMIPS::lshift32):
Modified Paths
Diff
Modified: releases/WebKitGTK/webkit-2.10/Source/_javascript_Core/ChangeLog (195271 => 195272)
--- releases/WebKitGTK/webkit-2.10/Source/_javascript_Core/ChangeLog 2016-01-19 09:30:17 UTC (rev 195271)
+++ releases/WebKitGTK/webkit-2.10/Source/_javascript_Core/ChangeLog 2016-01-19 09:33:57 UTC (rev 195272)
@@ -1,3 +1,19 @@
+2016-01-15 Julien Brianceau <[email protected]>
+
+ [mips] Add countLeadingZeros32 implementation in macro assembler
+ https://bugs.webkit.org/show_bug.cgi?id=152886
+
+ Reviewed by Michael Saboff.
+
+ * assembler/MIPSAssembler.h:
+ (JSC::MIPSAssembler::lui):
+ (JSC::MIPSAssembler::clz):
+ (JSC::MIPSAssembler::addiu):
+ * assembler/MacroAssemblerMIPS.h:
+ (JSC::MacroAssemblerMIPS::and32):
+ (JSC::MacroAssemblerMIPS::countLeadingZeros32):
+ (JSC::MacroAssemblerMIPS::lshift32):
+
2016-01-08 Konstantin Tokarev <[email protected]>
[mips] Fixed unused parameter warnings
Modified: releases/WebKitGTK/webkit-2.10/Source/_javascript_Core/assembler/MIPSAssembler.h (195271 => 195272)
--- releases/WebKitGTK/webkit-2.10/Source/_javascript_Core/assembler/MIPSAssembler.h 2016-01-19 09:30:17 UTC (rev 195271)
+++ releases/WebKitGTK/webkit-2.10/Source/_javascript_Core/assembler/MIPSAssembler.h 2016-01-19 09:33:57 UTC (rev 195272)
@@ -240,6 +240,11 @@
emitInst(0x3c000000 | (rt << OP_SH_RT) | (imm & 0xffff));
}
+ void clz(RegisterID rd, RegisterID rs)
+ {
+ emitInst(0x70000020 | (rd << OP_SH_RD) | (rs << OP_SH_RS) | (rd << OP_SH_RT));
+ }
+
void addiu(RegisterID rt, RegisterID rs, int imm)
{
emitInst(0x24000000 | (rt << OP_SH_RT) | (rs << OP_SH_RS) | (imm & 0xffff));
Modified: releases/WebKitGTK/webkit-2.10/Source/_javascript_Core/assembler/MacroAssemblerMIPS.h (195271 => 195272)
--- releases/WebKitGTK/webkit-2.10/Source/_javascript_Core/assembler/MacroAssemblerMIPS.h 2016-01-19 09:30:17 UTC (rev 195271)
+++ releases/WebKitGTK/webkit-2.10/Source/_javascript_Core/assembler/MacroAssemblerMIPS.h 2016-01-19 09:33:57 UTC (rev 195272)
@@ -313,6 +313,15 @@
}
}
+ void countLeadingZeros32(RegisterID src, RegisterID dest)
+ {
+#if WTF_MIPS_ISA_AT_LEAST(32)
+ m_assembler.clz(dest, src);
+#else
+ static_assert(false, "CLZ opcode is not available for this ISA");
+#endif
+ }
+
void lshift32(RegisterID shiftAmount, RegisterID dest)
{
m_assembler.sllv(dest, dest, shiftAmount);
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