Martin Storsjo : msvcrt: Optimize the aarch64 setjmp/longjmp using stp/ ldp.
Alexandre Julliard
julliard at winehq.org
Fri Jan 26 16:59:11 CST 2018
Module: wine
Branch: master
Commit: 85635db0ea7c4a8fee6612fe10c9d4aacf45e659
URL: https://source.winehq.org/git/wine.git/?a=commit;h=85635db0ea7c4a8fee6612fe10c9d4aacf45e659
Author: Martin Storsjo <martin at martin.st>
Date: Mon Jan 22 00:04:29 2018 +0200
msvcrt: Optimize the aarch64 setjmp/longjmp using stp/ldp.
stp/ldp don't require any more alignment than the normal str/ldr.
Signed-off-by: Martin Storsjo <martin at martin.st>
Signed-off-by: Piotr Caban <piotr at codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard at winehq.org>
---
dlls/msvcrt/except_arm64.c | 74 +++++++++++++++++-----------------------------
1 file changed, 27 insertions(+), 47 deletions(-)
diff --git a/dlls/msvcrt/except_arm64.c b/dlls/msvcrt/except_arm64.c
index 904d006..2576928 100644
--- a/dlls/msvcrt/except_arm64.c
+++ b/dlls/msvcrt/except_arm64.c
@@ -141,65 +141,45 @@ __ASM_GLOBAL_FUNC(MSVCRT__setjmp,
* _setjmpex (MSVCRT.@)
*/
__ASM_GLOBAL_FUNC(MSVCRT__setjmpex,
- "str x1, [x0]\n\t" /* jmp_buf->Frame */
- "str x19, [x0, #0x10]\n\t" /* jmp_buf->X19 */
- "str x20, [x0, #0x18]\n\t" /* jmp_buf->X20 */
- "str x21, [x0, #0x20]\n\t" /* jmp_buf->X21 */
- "str x22, [x0, #0x28]\n\t" /* jmp_buf->X22 */
- "str x23, [x0, #0x30]\n\t" /* jmp_buf->X23 */
- "str x24, [x0, #0x38]\n\t" /* jmp_buf->X24 */
- "str x25, [x0, #0x40]\n\t" /* jmp_buf->X25 */
- "str x26, [x0, #0x48]\n\t" /* jmp_buf->X26 */
- "str x27, [x0, #0x50]\n\t" /* jmp_buf->X27 */
- "str x28, [x0, #0x58]\n\t" /* jmp_buf->X28 */
- "str x29, [x0, #0x60]\n\t" /* jmp_buf->Fp */
- "str x30, [x0, #0x68]\n\t" /* jmp_buf->Lr */
+ "str x1, [x0]\n\t" /* jmp_buf->Frame */
+ "stp x19, x20, [x0, #0x10]\n\t" /* jmp_buf->X19, X20 */
+ "stp x21, x22, [x0, #0x20]\n\t" /* jmp_buf->X21, X22 */
+ "stp x23, x24, [x0, #0x30]\n\t" /* jmp_buf->X23, X24 */
+ "stp x25, x26, [x0, #0x40]\n\t" /* jmp_buf->X25, X26 */
+ "stp x27, x28, [x0, #0x50]\n\t" /* jmp_buf->X27, X28 */
+ "stp x29, x30, [x0, #0x60]\n\t" /* jmp_buf->Fp, Lr */
"mov x2, sp\n\t"
- "str x2, [x0, #0x70]\n\t" /* jmp_buf->Sp */
+ "str x2, [x0, #0x70]\n\t" /* jmp_buf->Sp */
"mrs x2, fpcr\n\t"
- "str w2, [x0, #0x78]\n\t" /* jmp_buf->Fpcr */
+ "str w2, [x0, #0x78]\n\t" /* jmp_buf->Fpcr */
"mrs x2, fpsr\n\t"
- "str w2, [x0, #0x7c]\n\t" /* jmp_buf->Fpsr */
- "str d8, [x0, #0x80]\n\t" /* jmp_buf->D[0] */
- "str d9, [x0, #0x88]\n\t" /* jmp_buf->D[1] */
- "str d10, [x0, #0x90]\n\t" /* jmp_buf->D[2] */
- "str d11, [x0, #0x98]\n\t" /* jmp_buf->D[3] */
- "str d12, [x0, #0xa0]\n\t" /* jmp_buf->D[4] */
- "str d13, [x0, #0xa8]\n\t" /* jmp_buf->D[5] */
- "str d14, [x0, #0xb0]\n\t" /* jmp_buf->D[6] */
- "str d15, [x0, #0xb8]\n\t" /* jmp_buf->D[7] */
+ "str w2, [x0, #0x7c]\n\t" /* jmp_buf->Fpsr */
+ "stp d8, d9, [x0, #0x80]\n\t" /* jmp_buf->D[0-1] */
+ "stp d10, d11, [x0, #0x90]\n\t" /* jmp_buf->D[2-3] */
+ "stp d12, d13, [x0, #0xa0]\n\t" /* jmp_buf->D[4-5] */
+ "stp d14, d15, [x0, #0xb0]\n\t" /* jmp_buf->D[6-7] */
"mov x0, #0\n\t"
"ret");
extern void DECLSPEC_NORETURN CDECL longjmp_set_regs(struct MSVCRT___JUMP_BUFFER *jmp, int retval);
__ASM_GLOBAL_FUNC(longjmp_set_regs,
- "ldr x19, [x0, #0x10]\n\t" /* jmp_buf->X19 */
- "ldr x20, [x0, #0x18]\n\t" /* jmp_buf->X20 */
- "ldr x21, [x0, #0x20]\n\t" /* jmp_buf->X21 */
- "ldr x22, [x0, #0x28]\n\t" /* jmp_buf->X22 */
- "ldr x23, [x0, #0x30]\n\t" /* jmp_buf->X23 */
- "ldr x24, [x0, #0x38]\n\t" /* jmp_buf->X24 */
- "ldr x25, [x0, #0x40]\n\t" /* jmp_buf->X25 */
- "ldr x26, [x0, #0x48]\n\t" /* jmp_buf->X26 */
- "ldr x27, [x0, #0x50]\n\t" /* jmp_buf->X27 */
- "ldr x28, [x0, #0x58]\n\t" /* jmp_buf->X28 */
- "ldr x29, [x0, #0x60]\n\t" /* jmp_buf->Fp */
- "ldr x30, [x0, #0x68]\n\t" /* jmp_buf->Lr */
- "ldr x2, [x0, #0x70]\n\t" /* jmp_buf->Sp */
+ "ldp x19, x20, [x0, #0x10]\n\t" /* jmp_buf->X19, X20 */
+ "ldp x21, x22, [x0, #0x20]\n\t" /* jmp_buf->X21, X22 */
+ "ldp x23, x24, [x0, #0x30]\n\t" /* jmp_buf->X23, X24 */
+ "ldp x25, x26, [x0, #0x40]\n\t" /* jmp_buf->X25, X26 */
+ "ldp x27, x28, [x0, #0x50]\n\t" /* jmp_buf->X27, X28 */
+ "ldp x29, x30, [x0, #0x60]\n\t" /* jmp_buf->Fp, Lr */
+ "ldr x2, [x0, #0x70]\n\t" /* jmp_buf->Sp */
"mov sp, x2\n\t"
- "ldr w2, [x0, #0x78]\n\t" /* jmp_buf->Fpcr */
+ "ldr w2, [x0, #0x78]\n\t" /* jmp_buf->Fpcr */
"msr fpcr, x2\n\t"
- "ldr w2, [x0, #0x7c]\n\t" /* jmp_buf->Fpsr */
+ "ldr w2, [x0, #0x7c]\n\t" /* jmp_buf->Fpsr */
"msr fpsr, x2\n\t"
- "ldr d8, [x0, #0x80]\n\t" /* jmp_buf->D[0] */
- "ldr d9, [x0, #0x88]\n\t" /* jmp_buf->D[1] */
- "ldr d10, [x0, #0x90]\n\t" /* jmp_buf->D[2] */
- "ldr d11, [x0, #0x98]\n\t" /* jmp_buf->D[3] */
- "ldr d12, [x0, #0xa0]\n\t" /* jmp_buf->D[4] */
- "ldr d13, [x0, #0xa8]\n\t" /* jmp_buf->D[5] */
- "ldr d14, [x0, #0xb0]\n\t" /* jmp_buf->D[6] */
- "ldr d15, [x0, #0xb8]\n\t" /* jmp_buf->D[7] */
+ "ldp d8, d9, [x0, #0x80]\n\t" /* jmp_buf->D[0-1] */
+ "ldp d10, d11, [x0, #0x90]\n\t" /* jmp_buf->D[2-3] */
+ "ldp d12, d13, [x0, #0xa0]\n\t" /* jmp_buf->D[4-5] */
+ "ldp d14, d15, [x0, #0xb0]\n\t" /* jmp_buf->D[6-7] */
"mov x0, x1\n\t" /* retval */
"ret");
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