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bn/asm/rsaz-avx2.pl: refine Win64 SE handler.

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(This cherry-picks upstream's 53b33100769aa8801d6fd2caf155c7cb04d64dfc)

Change-Id: I88aa1b1b8b4a746c8fa510fb10f781bdd67cddb5
Reviewed-on: https://boringssl-review.googlesource.com/13760
Commit-Queue: Adam Langley <agl@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
This commit is contained in:
Adam Langley 2017-02-09 11:13:02 -08:00 committed by CQ bot account: commit-bot@chromium.org
parent 46db7af2c9
commit 137e2f86cb
1 changed files with 12 additions and 5 deletions
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17
crypto/bn/asm/rsaz-avx2.pl
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@ -804,6 +804,7 @@ $code.=<<___;
mov %rbp, %rax
___
$code.=<<___ if ($win64);
.Lsqr_1024_in_tail:
movaps -0xd8(%rax),%xmm6
movaps -0xc8(%rax),%xmm7
movaps -0xb8(%rax),%xmm8
@ -1437,6 +1438,7 @@ $code.=<<___;
mov %rbp, %rax
___
$code.=<<___ if ($win64);
.Lmul_1024_in_tail:
movaps -0xd8(%rax),%xmm6
movaps -0xc8(%rax),%xmm7
movaps -0xb8(%rax),%xmm8
@ -1792,14 +1794,17 @@ rsaz_se_handler:
cmp %r10,%rbx # context->Rip<prologue label
jb .Lcommon_seh_tail
mov 152($context),%rax # pull context->Rsp
mov 4(%r11),%r10d # HandlerData[1]
lea (%rsi,%r10),%r10 # epilogue label
cmp %r10,%rbx # context->Rip>=epilogue label
jae .Lcommon_seh_tail
mov 160($context),%rax # pull context->Rbp
mov 160($context),%rbp # pull context->Rbp
mov 8(%r11),%r10d # HandlerData[2]
lea (%rsi,%r10),%r10 # "in tail" label
cmp %r10,%rbx # context->Rip>="in tail" label
cmovc %rbp,%rax
mov -48(%rax),%r15
mov -40(%rax),%r14
@ -1877,11 +1882,13 @@ rsaz_se_handler:
.LSEH_info_rsaz_1024_sqr_avx2:
.byte 9,0,0,0
.rva rsaz_se_handler
.rva .Lsqr_1024_body,.Lsqr_1024_epilogue
.rva .Lsqr_1024_body,.Lsqr_1024_epilogue,.Lsqr_1024_in_tail
.long 0
.LSEH_info_rsaz_1024_mul_avx2:
.byte 9,0,0,0
.rva rsaz_se_handler
.rva .Lmul_1024_body,.Lmul_1024_epilogue
.rva .Lmul_1024_body,.Lmul_1024_epilogue,.Lmul_1024_in_tail
.long 0
.LSEH_info_rsaz_1024_gather5:
.byte 0x01,0x36,0x17,0x0b
.byte 0x36,0xf8,0x09,0x00 # vmovaps 0x90(rsp),xmm15