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Unified Diff: third_party/boringssl/linux-x86_64/crypto/bn/x86_64-mont5.S

Issue 2695223006: Roll src/third_party/boringssl/src dc8c1d962..0f28691d3 (Closed)
Patch Set: Use correct parent. Created 3 years, 10 months ago
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Index: third_party/boringssl/linux-x86_64/crypto/bn/x86_64-mont5.S
diff --git a/third_party/boringssl/linux-x86_64/crypto/bn/x86_64-mont5.S b/third_party/boringssl/linux-x86_64/crypto/bn/x86_64-mont5.S
index 5d7502c3fd609cf68bee72f93dfca101b8a5f245..b891f353c64fe510ec6c2d3964b693649a951982 100644
--- a/third_party/boringssl/linux-x86_64/crypto/bn/x86_64-mont5.S
+++ b/third_party/boringssl/linux-x86_64/crypto/bn/x86_64-mont5.S
@@ -9,16 +9,15 @@
.type bn_mul_mont_gather5,@function
.align 64
bn_mul_mont_gather5:
+ movl %r9d,%r9d
+ movq %rsp,%rax
testl $7,%r9d
jnz .Lmul_enter
jmp .Lmul4x_enter
.align 16
.Lmul_enter:
- movl %r9d,%r9d
- movq %rsp,%rax
movd 8(%rsp),%xmm5
- leaq .Linc(%rip),%r10
pushq %rbx
pushq %rbp
pushq %r12
@@ -26,13 +25,39 @@ bn_mul_mont_gather5:
pushq %r14
pushq %r15
- leaq 2(%r9),%r11
- negq %r11
- leaq -264(%rsp,%r11,8),%rsp
- andq $-1024,%rsp
+ negq %r9
+ movq %rsp,%r11
+ leaq -280(%rsp,%r9,8),%r10
+ negq %r9
+ andq $-1024,%r10
+
+
+
+
+
+
+
+
+ subq %r10,%r11
+ andq $-4096,%r11
+ leaq (%r10,%r11,1),%rsp
+ movq (%rsp),%r11
+ cmpq %r10,%rsp
+ ja .Lmul_page_walk
+ jmp .Lmul_page_walk_done
+
+.Lmul_page_walk:
+ leaq -4096(%rsp),%rsp
+ movq (%rsp),%r11
+ cmpq %r10,%rsp
+ ja .Lmul_page_walk
+.Lmul_page_walk_done:
+
+ leaq .Linc(%rip),%r10
movq %rax,8(%rsp,%r9,8)
.Lmul_body:
+
leaq 128(%rdx),%r12
movdqa 0(%r10),%xmm0
movdqa 16(%r10),%xmm1
@@ -371,16 +396,17 @@ bn_mul_mont_gather5:
sbbq $0,%rax
xorq %r14,%r14
+ andq %rax,%rsi
+ notq %rax
+ movq %rdi,%rcx
+ andq %rax,%rcx
movq %r9,%r15
+ orq %rcx,%rsi
.align 16
.Lcopy:
- movq (%rsp,%r14,8),%rsi
- movq (%rdi,%r14,8),%rcx
- xorq %rcx,%rsi
- andq %rax,%rsi
- xorq %rcx,%rsi
+ movq (%rsi,%r14,8),%rax
movq %r14,(%rsp,%r14,8)
- movq %rsi,(%rdi,%r14,8)
+ movq %rax,(%rdi,%r14,8)
leaq 1(%r14),%r14
subq $1,%r15
jnz .Lcopy
@@ -401,15 +427,16 @@ bn_mul_mont_gather5:
.type bn_mul4x_mont_gather5,@function
.align 32
bn_mul4x_mont_gather5:
-.Lmul4x_enter:
.byte 0x67
movq %rsp,%rax
+.Lmul4x_enter:
pushq %rbx
pushq %rbp
pushq %r12
pushq %r13
pushq %r14
pushq %r15
+.Lmul4x_prologue:
.byte 0x67
shll $3,%r9d
@@ -426,24 +453,41 @@ bn_mul4x_mont_gather5:
leaq -320(%rsp,%r9,2),%r11
+ movq %rsp,%rbp
subq %rdi,%r11
andq $4095,%r11
cmpq %r11,%r10
jb .Lmul4xsp_alt
- subq %r11,%rsp
- leaq -320(%rsp,%r9,2),%rsp
+ subq %r11,%rbp
+ leaq -320(%rbp,%r9,2),%rbp
jmp .Lmul4xsp_done
.align 32
.Lmul4xsp_alt:
leaq 4096-320(,%r9,2),%r10
- leaq -320(%rsp,%r9,2),%rsp
+ leaq -320(%rbp,%r9,2),%rbp
subq %r10,%r11
movq $0,%r10
cmovcq %r10,%r11
- subq %r11,%rsp
+ subq %r11,%rbp
.Lmul4xsp_done:
- andq $-64,%rsp
+ andq $-64,%rbp
+ movq %rsp,%r11
+ subq %rbp,%r11
+ andq $-4096,%r11
+ leaq (%r11,%rbp,1),%rsp
+ movq (%rsp),%r10
+ cmpq %rbp,%rsp
+ ja .Lmul4x_page_walk
+ jmp .Lmul4x_page_walk_done
+
+.Lmul4x_page_walk:
+ leaq -4096(%rsp),%rsp
+ movq (%rsp),%r10
+ cmpq %rbp,%rsp
+ ja .Lmul4x_page_walk
+.Lmul4x_page_walk_done:
+
negq %r9
movq %rax,40(%rsp)
@@ -1002,6 +1046,7 @@ bn_power5:
pushq %r13
pushq %r14
pushq %r15
+.Lpower5_prologue:
shll $3,%r9d
leal (%r9,%r9,2),%r10d
@@ -1016,24 +1061,41 @@ bn_power5:
leaq -320(%rsp,%r9,2),%r11
+ movq %rsp,%rbp
subq %rdi,%r11
andq $4095,%r11
cmpq %r11,%r10
jb .Lpwr_sp_alt
- subq %r11,%rsp
- leaq -320(%rsp,%r9,2),%rsp
+ subq %r11,%rbp
+ leaq -320(%rbp,%r9,2),%rbp
jmp .Lpwr_sp_done
.align 32
.Lpwr_sp_alt:
leaq 4096-320(,%r9,2),%r10
- leaq -320(%rsp,%r9,2),%rsp
+ leaq -320(%rbp,%r9,2),%rbp
subq %r10,%r11
movq $0,%r10
cmovcq %r10,%r11
- subq %r11,%rsp
+ subq %r11,%rbp
.Lpwr_sp_done:
- andq $-64,%rsp
+ andq $-64,%rbp
+ movq %rsp,%r11
+ subq %rbp,%r11
+ andq $-4096,%r11
+ leaq (%r11,%rbp,1),%rsp
+ movq (%rsp),%r10
+ cmpq %rbp,%rsp
+ ja .Lpwr_page_walk
+ jmp .Lpwr_page_walk_done
+
+.Lpwr_page_walk:
+ leaq -4096(%rsp),%rsp
+ movq (%rsp),%r10
+ cmpq %rbp,%rsp
+ ja .Lpwr_page_walk
+.Lpwr_page_walk_done:
+
movq %r9,%r10
negq %r9
@@ -1944,6 +2006,7 @@ bn_from_mont8x:
pushq %r13
pushq %r14
pushq %r15
+.Lfrom_prologue:
shll $3,%r9d
leaq (%r9,%r9,2),%r10
@@ -1958,24 +2021,41 @@ bn_from_mont8x:
leaq -320(%rsp,%r9,2),%r11
+ movq %rsp,%rbp
subq %rdi,%r11
andq $4095,%r11
cmpq %r11,%r10
jb .Lfrom_sp_alt
- subq %r11,%rsp
- leaq -320(%rsp,%r9,2),%rsp
+ subq %r11,%rbp
+ leaq -320(%rbp,%r9,2),%rbp
jmp .Lfrom_sp_done
.align 32
.Lfrom_sp_alt:
leaq 4096-320(,%r9,2),%r10
- leaq -320(%rsp,%r9,2),%rsp
+ leaq -320(%rbp,%r9,2),%rbp
subq %r10,%r11
movq $0,%r10
cmovcq %r10,%r11
- subq %r11,%rsp
+ subq %r11,%rbp
.Lfrom_sp_done:
- andq $-64,%rsp
+ andq $-64,%rbp
+ movq %rsp,%r11
+ subq %rbp,%r11
+ andq $-4096,%r11
+ leaq (%r11,%rbp,1),%rsp
+ movq (%rsp),%r10
+ cmpq %rbp,%rsp
+ ja .Lfrom_page_walk
+ jmp .Lfrom_page_walk_done
+
+.Lfrom_page_walk:
+ leaq -4096(%rsp),%rsp
+ movq (%rsp),%r10
+ cmpq %rbp,%rsp
+ ja .Lfrom_page_walk
+.Lfrom_page_walk_done:
+
movq %r9,%r10
negq %r9
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