[Webkit-unassigned] [Bug 153463] [mips] don't save to a callee saved register too early
bugzilla-daemon at webkit.org
bugzilla-daemon at webkit.org
Wed Jan 27 02:54:14 PST 2016
https://bugs.webkit.org/show_bug.cgi?id=153463
--- Comment #5 from Julien Brianceau <jbriance at cisco.com> ---
Argh, I forgot that gnu as reorders MIPS opcodes, and I thought that the "move $gp, $s4"
instruction in the following code of LLIntAssembly.h was executed in the delay slot:
...
move $s4, $gp
jalr $t9
move $gp, $s4
...
Whereas after compilation, it is reordered like this by the assembler:
...
jalr $t9
move $s4, $gp
move $gp, $s4
...
I'll try to look at your patch more carefully if I have time, meanwhile I remove my r-
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