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Eliminate two pushl by using call instruction directly, this really

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helps branch predict a lot for INTEL P4.

Approved by: re (scottl)
This commit is contained in:
David Xu 2003-11-29 14:25:43 +00:00
parent 170422c2ef
commit 508f442784
2 changed files with 2 additions and 4 deletions
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3
lib/libkse/arch/i386/i386/thr_enter_uts.S
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@ -40,6 +40,5 @@ ENTRY(_i386_enter_uts)
addl 16(%edx), %eax /* add length */ addl 16(%edx), %eax /* add length */
movl %eax, %esp /* switch to uts stack */ movl %eax, %esp /* switch to uts stack */
pushl 4(%edx) /* push the address of the mailbox */ pushl 4(%edx) /* push the address of the mailbox */
pushl 8(%edx) /* .. the uts can return to itself */ call *8(%edx)
pushl 8(%edx) /* .. the uts can return to itself */
ret ret

3
lib/libpthread/arch/i386/i386/thr_enter_uts.S
View File

@ -40,6 +40,5 @@ ENTRY(_i386_enter_uts)
addl 16(%edx), %eax /* add length */ addl 16(%edx), %eax /* add length */
movl %eax, %esp /* switch to uts stack */ movl %eax, %esp /* switch to uts stack */
pushl 4(%edx) /* push the address of the mailbox */ pushl 4(%edx) /* push the address of the mailbox */
pushl 8(%edx) /* .. the uts can return to itself */ call *8(%edx)
pushl 8(%edx) /* .. the uts can return to itself */
ret ret