6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2024-08-21 18:29:46 +00:00
Code Issues Projects Releases Wiki Activity

APIntify a test which is potentially unsafe otherwise, and fix the

Browse Source 
nearby FIXME.

I'm not sure what the right way to fix the Cell test was; if the 
approach I used isn't okay, please let me know.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60277 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Eli Friedman 2008-11-30 04:59:26 +00:00
parent 13441c57ec
commit 86f874d9bb
3 changed files with 33 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
lib/CodeGen/SelectionDAG/TargetLowering.cpp
View File

@ -1583,12 +1583,19 @@ TargetLowering::SimplifySetCC(MVT VT, SDValue N0, SDValue N1,
// by changing cc.
// SETUGT X, SINTMAX -> SETLT X, 0
if (Cond == ISD::SETUGT && OperandBitSize != 1 &&
C1 == (~0ULL >> (65-OperandBitSize)))
if (Cond == ISD::SETUGT &&
C1 == APInt::getSignedMaxValue(OperandBitSize))
return DAG.getSetCC(VT, N0, DAG.getConstant(0, N1.getValueType()),
ISD::SETLT);
// FIXME: Implement the rest of these.
// SETULT X, SINTMIN -> SETGT X, -1
if (Cond == ISD::SETULT &&
C1 == APInt::getSignedMinValue(OperandBitSize)) {
SDValue ConstMinusOne =
DAG.getConstant(APInt::getAllOnesValue(OperandBitSize),
N1.getValueType());
return DAG.getSetCC(VT, N0, ConstMinusOne, ISD::SETGT);
}
// Fold bit comparisons when we can.
if ((Cond == ISD::SETEQ || Cond == ISD::SETNE) &&

2
test/CodeGen/CellSPU/icmp16.ll
View File

@ -204,7 +204,7 @@ entry:
define i16 @icmp_ult_immed04_i16(i16 %arg1, i16 %val1, i16 %val2) nounwind {
entry:
%A = icmp ult i16 %arg1, 32768
%A = icmp ult i16 %arg1, 32769
%B = select i1 %A, i16 %val1, i16 %val2
ret i16 %B
}

22
test/CodeGen/X86/2008-11-29-ULT-Sign.ll Normal file
View File

@ -0,0 +1,22 @@
; RUN: llvm-as < %s | llc -mtriple=i686-pc-linux-gnu | grep "jns" | count 1
target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:32:32"
target triple = "i686-pc-linux-gnu"
define i32 @a(i32 %x) nounwind {
entry:
%cmp = icmp ult i32 %x, -2147483648 ; <i1> [#uses=1]
br i1 %cmp, label %if.end, label %if.then
if.then: ; preds = %entry
%call = call i32 (...)* @b() ; <i32> [#uses=0]
br label %if.end
if.end: ; preds = %if.then, %entry
br label %return
return: ; preds = %if.end
ret i32 undef
}
declare i32 @b(...)