mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-21 00:32:23 +00:00
86 lines
3.1 KiB
LLVM
86 lines
3.1 KiB
LLVM
|
; RUN: llvm-as < %s | llc -mtriple=i386-apple-darwin9 -stats |& grep regcoalescing | grep commuting
|
||
|
|
|
||
|
|
@lookupTable5B = external global [64 x i32], align 32 ; <[64 x i32]*> [#uses=1]
|
||
|
|
@lookupTable3B = external global [16 x i32], align 32 ; <[16 x i32]*> [#uses=1]
|
||
|
|
@disparity0 = external global i32 ; <i32*> [#uses=5]
|
||
|
|
@disparity1 = external global i32 ; <i32*> [#uses=3]
|
||
|
|
|
||
|
|
define i32 @calc(i32 %theWord, i32 %k) nounwind {
|
||
|
|
entry:
|
||
|
|
%0 = lshr i32 %theWord, 3 ; <i32> [#uses=1]
|
||
|
|
%1 = and i32 %0, 31 ; <i32> [#uses=1]
|
||
|
|
%2 = shl i32 %k, 5 ; <i32> [#uses=1]
|
||
|
|
%3 = or i32 %1, %2 ; <i32> [#uses=1]
|
||
|
|
%4 = and i32 %theWord, 7 ; <i32> [#uses=1]
|
||
|
|
%5 = shl i32 %k, 3 ; <i32> [#uses=1]
|
||
|
|
%6 = or i32 %5, %4 ; <i32> [#uses=1]
|
||
|
|
%7 = getelementptr [64 x i32]* @lookupTable5B, i32 0, i32 %3 ; <i32*> [#uses=1]
|
||
|
|
%8 = load i32* %7, align 4 ; <i32> [#uses=5]
|
||
|
|
%9 = getelementptr [16 x i32]* @lookupTable3B, i32 0, i32 %6 ; <i32*> [#uses=1]
|
||
|
|
%10 = load i32* %9, align 4 ; <i32> [#uses=5]
|
||
|
|
%11 = and i32 %8, 65536 ; <i32> [#uses=1]
|
||
|
|
%12 = icmp eq i32 %11, 0 ; <i1> [#uses=1]
|
||
|
|
br i1 %12, label %bb1, label %bb
|
||
|
|
|
||
|
|
bb: ; preds = %entry
|
||
|
|
%13 = and i32 %8, 994 ; <i32> [#uses=1]
|
||
|
|
%14 = load i32* @disparity0, align 4 ; <i32> [#uses=2]
|
||
|
|
store i32 %14, i32* @disparity1, align 4
|
||
|
|
br label %bb8
|
||
|
|
|
||
|
|
bb1: ; preds = %entry
|
||
|
|
%15 = lshr i32 %8, 18 ; <i32> [#uses=1]
|
||
|
|
%16 = and i32 %15, 1 ; <i32> [#uses=1]
|
||
|
|
%17 = load i32* @disparity0, align 4 ; <i32> [#uses=4]
|
||
|
|
%18 = icmp eq i32 %16, %17 ; <i1> [#uses=1]
|
||
|
|
%not = select i1 %18, i32 0, i32 994 ; <i32> [#uses=1]
|
||
|
|
%.masked = and i32 %8, 994 ; <i32> [#uses=1]
|
||
|
|
%result.1 = xor i32 %not, %.masked ; <i32> [#uses=2]
|
||
|
|
%19 = and i32 %8, 524288 ; <i32> [#uses=1]
|
||
|
|
%20 = icmp eq i32 %19, 0 ; <i1> [#uses=1]
|
||
|
|
br i1 %20, label %bb7, label %bb6
|
||
|
|
|
||
|
|
bb6: ; preds = %bb1
|
||
|
|
%21 = xor i32 %17, 1 ; <i32> [#uses=2]
|
||
|
|
store i32 %21, i32* @disparity1, align 4
|
||
|
|
br label %bb8
|
||
|
|
|
||
|
|
bb7: ; preds = %bb1
|
||
|
|
store i32 %17, i32* @disparity1, align 4
|
||
|
|
br label %bb8
|
||
|
|
|
||
|
|
bb8: ; preds = %bb7, %bb6, %bb
|
||
|
|
%22 = phi i32 [ %17, %bb7 ], [ %21, %bb6 ], [ %14, %bb ] ; <i32> [#uses=4]
|
||
|
|
%result.0 = phi i32 [ %result.1, %bb7 ], [ %result.1, %bb6 ], [ %13, %bb ] ; <i32> [#uses=2]
|
||
|
|
%23 = and i32 %10, 65536 ; <i32> [#uses=1]
|
||
|
|
%24 = icmp eq i32 %23, 0 ; <i1> [#uses=1]
|
||
|
|
br i1 %24, label %bb10, label %bb9
|
||
|
|
|
||
|
|
bb9: ; preds = %bb8
|
||
|
|
%25 = and i32 %10, 29 ; <i32> [#uses=1]
|
||
|
|
%26 = or i32 %result.0, %25 ; <i32> [#uses=1]
|
||
|
|
store i32 %22, i32* @disparity0, align 4
|
||
|
|
ret i32 %26
|
||
|
|
|
||
|
|
bb10: ; preds = %bb8
|
||
|
|
%27 = lshr i32 %10, 18 ; <i32> [#uses=1]
|
||
|
|
%28 = and i32 %27, 1 ; <i32> [#uses=1]
|
||
|
|
%29 = icmp eq i32 %28, %22 ; <i1> [#uses=1]
|
||
|
|
%not13 = select i1 %29, i32 0, i32 29 ; <i32> [#uses=1]
|
||
|
|
%.masked20 = and i32 %10, 29 ; <i32> [#uses=1]
|
||
|
|
%.pn = xor i32 %not13, %.masked20 ; <i32> [#uses=1]
|
||
|
|
%result.3 = or i32 %.pn, %result.0 ; <i32> [#uses=2]
|
||
|
|
%30 = and i32 %10, 524288 ; <i32> [#uses=1]
|
||
|
|
%31 = icmp eq i32 %30, 0 ; <i1> [#uses=1]
|
||
|
|
br i1 %31, label %bb17, label %bb16
|
||
|
|
|
||
|
|
bb16: ; preds = %bb10
|
||
|
|
%32 = xor i32 %22, 1 ; <i32> [#uses=1]
|
||
|
|
store i32 %32, i32* @disparity0, align 4
|
||
|
|
ret i32 %result.3
|
||
|
|
|
||
|
|
bb17: ; preds = %bb10
|
||
|
|
store i32 %22, i32* @disparity0, align 4
|
||
|
|
ret i32 %result.3
|
||
|
|
}
|