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* config/xtensa/lib2funcs.S: Use C-style comments.

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From-SVN: r118039
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Bob Wilson 2006-10-25 17:03:02 +00:00 committed by Bob Wilson
parent 29f7d34e1f
commit 76f6e118d8
2 changed files with 27 additions and 23 deletions
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4
gcc/ChangeLog
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@ -1,3 +1,7 @@
2006-10-25 Bob Wilson <bob.wilson@acm.org>
* config/xtensa/lib2funcs.S: Use C-style comments.
2006-10-24 Nathan Froyd <froydnj@codesourcery.com>
* dwarf2out.c (gen_compile_unit_die): Use IS_ABSOLUTE_PATH.

46
gcc/config/xtensa/lib2funcs.S
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@ -1,5 +1,5 @@
/* Assembly functions for libgcc2.
Copyright (C) 2001 Free Software Foundation, Inc.
Copyright (C) 2001, 2006 Free Software Foundation, Inc.
Contributed by Bob Wilson (bwilson@tensilica.com) at Tensilica.
This file is part of GCC.
@ -42,7 +42,7 @@ __xtensa_libgcc_window_spill:
movi a2, 0
syscall
retw
.size __xtensa_libgcc_window_spill,.-__xtensa_libgcc_window_spill
.size __xtensa_libgcc_window_spill, .-__xtensa_libgcc_window_spill
/* __xtensa_nonlocal_goto: This code does all the hard work of a
@ -62,7 +62,7 @@ __xtensa_libgcc_window_spill:
__xtensa_nonlocal_goto:
entry sp, 32
/* flush registers */
/* Flush registers. */
mov a5, a2
movi a2, 0
syscall
@ -93,18 +93,18 @@ __xtensa_nonlocal_goto:
proceeds, the window size is taken from the value of a0
saved _two_ frames below the current frame. */
addi a5, sp, -16 # a5 = prev - save area
addi a5, sp, -16 /* a5 = prev - save area */
l32i a6, a5, 4
addi a6, a6, -16 # a6 = cur - save area
mov a8, a0 # a8 = return address (for window size)
addi a6, a6, -16 /* a6 = cur - save area */
mov a8, a0 /* a8 = return address (for window size) */
j .Lfirstframe
.Lnextframe:
l32i a8, a5, 0 # next return address (for window size)
mov a5, a6 # advance prev
addi a6, a7, -16 # advance cur
.Lfirstframe:
l32i a7, a6, 4 # a7 = next
.Lnextframe:
l32i a8, a5, 0 /* next return address (for window size) */
mov a5, a6 /* advance prev */
addi a6, a7, -16 /* advance cur */
.Lfirstframe:
l32i a7, a6, 4 /* a7 = next */
bge a2, a7, .Lnextframe
/* At this point, prev (a5) points to the save area with the saved
@ -114,25 +114,25 @@ __xtensa_nonlocal_goto:
while updating the current save area, because the windows have
already been flushed. */
addi a4, sp, -16 # a4 = save area of this function
addi a4, sp, -16 /* a4 = save area of this function */
l32i a6, a5, 0
l32i a7, a5, 4
s32i a6, a4, 0
s32i a7, a4, 4
l32i a6, a5, 8
l32i a7, a5, 12
l32i a7, a5, 12
s32i a6, a4, 8
s32i a7, a4, 12
/* Set return address to goto handler. Use the window size bits
from the return address two frames below the target. */
extui a8, a8, 30, 2 # get window size from return addr.
slli a3, a3, 2 # get goto handler addr. << 2
extui a8, a8, 30, 2 /* get window size from return addr. */
slli a3, a3, 2 /* get goto handler addr. << 2 */
ssai 2
src a0, a8, a3 # combine them with a funnel shift
src a0, a8, a3 /* combine them with a funnel shift */
retw
.size __xtensa_nonlocal_goto,.-__xtensa_nonlocal_goto
.size __xtensa_nonlocal_goto, .-__xtensa_nonlocal_goto
/* __xtensa_sync_caches: This function is called after writing a trampoline
@ -160,7 +160,7 @@ __xtensa_nonlocal_goto:
__xtensa_sync_caches:
entry sp, 32
#if XCHAL_DCACHE_SIZE > 0
# Flush the trampoline from the data cache
/* Flush the trampoline from the data cache. */
extui a4, a2, 0, XCHAL_DCACHE_LINEWIDTH
addi a4, a4, TRAMPOLINE_SIZE
addi a4, a4, (1 << XCHAL_DCACHE_LINEWIDTH) - 1
@ -172,9 +172,9 @@ __xtensa_sync_caches:
addi a4, a4, -1
bnez a4, .Ldcache_loop
isync
#endif
#endif
#if XCHAL_ICACHE_SIZE > 0
# Invalidate the corresponding lines in the instruction cache
/* Invalidate the corresponding lines in the instruction cache. */
extui a4, a2, 0, XCHAL_ICACHE_LINEWIDTH
addi a4, a4, TRAMPOLINE_SIZE
addi a4, a4, (1 << XCHAL_ICACHE_LINEWIDTH) - 1
@ -187,4 +187,4 @@ __xtensa_sync_caches:
isync
#endif
retw
.size __xtensa_sync_caches,.-__xtensa_sync_caches
.size __xtensa_sync_caches, .-__xtensa_sync_caches