diff options
| author | Drahflow <drahflow@gmx.de> | 2013-09-15 21:03:17 +0200 |
|---|---|---|
| committer | Drahflow <drahflow@gmx.de> | 2013-09-15 21:03:17 +0200 |
| commit | cb5d3e47e54a188ecbb5385f80b0bdadf9297b33 (patch) | |
| tree | cb8acb5765eac291aa3df3b9047cc4a66d0f1130 | |
| parent | 9b1a4420c62c5698c077f2659060a9ad1bfc7a30 (diff) | |
Obvious optimization is obvious
| -rw-r--r-- | compiler/elymasAsmLib.ey | 23 |
1 files changed, 8 insertions, 15 deletions
diff --git a/compiler/elymasAsmLib.ey b/compiler/elymasAsmLib.ey index c8c71f9..f2f597f 100644 --- a/compiler/elymasAsmLib.ey +++ b/compiler/elymasAsmLib.ey @@ -259,9 +259,6 @@ /noFreeBlockAvailable :jmpLbl32 @freeBlockFound - /r9 :popqReg - /r8 :popqReg - # rdi == size of block to allocate # rbx == last cell of free block of sufficient size @@ -280,11 +277,9 @@ /rbx /rax :movqRegReg 3 /rax :shrqImm8Reg - /rdx :movqImmOOBReg BLOCKBASE - 1 /rdx /rax /sil :orbMemIndexScaleReg # sil now { mask block bor } + 1 /r8 /rax /sil :orbMemIndexScaleReg # sil now { mask block bor } /rsi :notqReg # sil now { mask block bor bnot } - /rdx :movqImmOOBReg MARKBASE - /sil 1 /rdx /rax :orbRegMemIndexScale # set mark bit if block bit was zero + /sil 1 /r9 /rax :orbRegMemIndexScale # set mark bit if block bit was zero @dontSplit # mark block as used (-> white) @@ -301,11 +296,9 @@ /rbx /rax :movqRegReg 3 /rax :shrqImm8Reg - /rdx :movqImmOOBReg BLOCKBASE - /sil 1 /rdx /rax :orbRegMemIndexScale # set block bit + /sil 1 /r8 /rax :orbRegMemIndexScale # set block bit /rsi :notqReg # sil now { mask bnot } - /rdx :movqImmOOBReg MARKBASE - /sil 1 /rdx /rax :andbRegMemIndexScale # reset mark bit + /sil 1 /r9 /rax :andbRegMemIndexScale # reset mark bit # ensure the new block is marked as block extend throughout in the bitmaps # TODO reconnect free blocks while scanning instead @@ -329,10 +322,8 @@ /rbx /rax :movqRegReg 3 /rax :shrqImm8Reg - /rdx :movqImmOOBReg BLOCKBASE - /sil 1 /rdx /rax :andbRegMemIndexScale # reset block bit - /rdx :movqImmOOBReg MARKBASE - /sil 1 /rdx /rax :andbRegMemIndexScale # reset mark bit + /sil 1 /r8 /rax :andbRegMemIndexScale # reset block bit + /sil 1 /r9 /rax :andbRegMemIndexScale # reset mark bit /markBlockFree :jmpLbl8 @markedBlockFree @@ -357,6 +348,8 @@ :reprcx :stosq /rax :popqReg + /r9 :popqReg + /r8 :popqReg :retn @noFreeBlockAvailable |