6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2024-08-19 04:29:21 +00:00
Code Issues Projects Releases Wiki Activity

Now with LL code!

Browse Source 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42547 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Bill Wendling 2007-10-02 20:54:32 +00:00
parent 6aab4910cd
commit 8d1c8ce3d8
1 changed files with 17 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
lib/Target/X86/README.txt
View File

@ -1241,6 +1241,22 @@ _test:
The following code: The following code:
bb114.preheader: ; preds = %cond_next94
%tmp231232 = sext i16 %tmp62 to i32 ; <i32> [#uses=1]
%tmp233 = sub i32 32, %tmp231232 ; <i32> [#uses=1]
%tmp245246 = sext i16 %tmp65 to i32 ; <i32> [#uses=1]
%tmp252253 = sext i16 %tmp68 to i32 ; <i32> [#uses=1]
%tmp254 = sub i32 32, %tmp252253 ; <i32> [#uses=1]
%tmp553554 = bitcast i16* %tmp37 to i8* ; <i8*> [#uses=2]
%tmp583584 = sext i16 %tmp98 to i32 ; <i32> [#uses=1]
%tmp585 = sub i32 32, %tmp583584 ; <i32> [#uses=1]
%tmp614615 = sext i16 %tmp101 to i32 ; <i32> [#uses=1]
%tmp621622 = sext i16 %tmp104 to i32 ; <i32> [#uses=1]
%tmp623 = sub i32 32, %tmp621622 ; <i32> [#uses=1]
br label %bb114
produces:
LBB3_5: # bb114.preheader LBB3_5: # bb114.preheader
movswl -68(%ebp), %eax movswl -68(%ebp), %eax
movl $32, %ecx movl $32, %ecx
@ -1261,7 +1277,7 @@ LBB3_5: # bb114.preheader
movl %eax, -96(%ebp) movl %eax, -96(%ebp)
movw $0, -98(%ebp) movw $0, -98(%ebp)
has redundant subtractions of %eax from a stack slot. However, %ecx doesn't This has redundant subtractions of %eax from a stack slot. However, %ecx doesn't
change, so we could simply subtract %eax from %ecx first and then use %ecx (or change, so we could simply subtract %eax from %ecx first and then use %ecx (or
vice-versa). vice-versa).