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[asm] Enable x86_64 asm for windows builds

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This commit is contained in:
Pavel P
2025-01-18 05:33:08 +02:00
parent c8243b4724
commit 46e17b805b
2 changed files with 13 additions and 8 deletions
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lib/decompress/huf_decompress_amd64.S
+10 -3
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@@ -42,13 +42,11 @@
/* Calling convention:
*
* %rdi contains the first argument: HUF_DecompressAsmArgs*.
* %rdi (or %rcx on Windows) contains the first argument: HUF_DecompressAsmArgs*.
* %rbp isn't maintained (no frame pointer).
* %rsp contains the stack pointer that grows down.
* No red-zone is assumed, only addresses >= %rsp are used.
* All register contents are preserved.
*
* TODO: Support Windows calling convention.
*/
ZSTD_HIDE_ASM_FUNCTION(HUF_decompress4X1_usingDTable_internal_fast_asm_loop)
@@ -137,7 +135,11 @@ HUF_decompress4X1_usingDTable_internal_fast_asm_loop:
push %r15
/* Read HUF_DecompressAsmArgs* args from %rax */
#if defined(_WIN32)
movq %rcx, %rax
#else
movq %rdi, %rax
#endif
movq 0(%rax), %ip0
movq 8(%rax), %ip1
movq 16(%rax), %ip2
@@ -391,7 +393,12 @@ HUF_decompress4X2_usingDTable_internal_fast_asm_loop:
push %r14
push %r15
/* Read HUF_DecompressAsmArgs* args from %rax */
#if defined(_WIN32)
movq %rcx, %rax
#else
movq %rdi, %rax
#endif
movq 0(%rax), %ip0
movq 8(%rax), %ip1
movq 16(%rax), %ip2