From 772e87739c848a10a014d3118ff14bd0ca48b2d0 Mon Sep 17 00:00:00 2001
From: Eugen Wissner <belka@caraus.de>
Date: Tue, 2 Oct 2018 08:55:29 +0200
Subject: Replace memory.op.cmp with optimized equal version

Deprecate cmp.
Fix #68.
---
 arch/x64/linux/memory/cmp.S | 67 ---------------------------------------------
 1 file changed, 67 deletions(-)
 delete mode 100644 arch/x64/linux/memory/cmp.S

(limited to 'arch/x64/linux/memory/cmp.S')

diff --git a/arch/x64/linux/memory/cmp.S b/arch/x64/linux/memory/cmp.S
deleted file mode 100644
index bd9f02e..0000000
--- a/arch/x64/linux/memory/cmp.S
+++ /dev/null
@@ -1,67 +0,0 @@
-	.text
-
-/*
- * cmpMemory.
- *
- * rdi - r1 length
- * rsi - r1 data.
- * rdx - r2 length.
- * rcx - r2 data.
- */
-	.globl _D5tanya6memory2op9cmpMemoryFNaNbNixAvxQdZi
-	.type _D5tanya6memory2op9cmpMemoryFNaNbNixAvxQdZi, @function
-_D5tanya6memory2op9cmpMemoryFNaNbNixAvxQdZi:
-		// Compare the lengths
-		cmp %rdx, %rdi
-		jl  less
-		jg  greater
-
-		mov %rcx, %rdi
-
-		// Check if we're aligned
-		cmp $0x08, %rdx
-		jc aligned_1
-		test $0x07, %edi
-		jz aligned_8
-
-	naligned:
-		cmpsb
-		jl less
-		jg greater
-
-		dec %rdx
-		test $0x07, %edi
-		jnz naligned
-
-	aligned_8:
-		mov %rdx,  %rcx
-		shr $0x03, %rcx
-
-		repe cmpsq
-		jl less
-		jg greater
-
-		and $0x07, %edx
-		jz equal
-
-	aligned_1: // Compare the remaining bytes
-		mov %rdx, %rcx
-		cmp $0x0, %rcx
-
-		repe cmpsb
-		jl less
-		jg greater
-
-	equal:
-		xor %rax, %rax // Return 0
-		jmp end
-
-	greater:
-		mov $0x01, %rax
-		jmp end
-
-	less:
-		mov $-0x01, %rax
-
-	end:
-		ret
-- 
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