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2011 Aug 19
2
[LLVMdev] LLVM ERROR: Cannot select error in simple i128 math?
In both LLVM 2.9 and the current svn head, I get the following error when running llc
% llc < fxp2.ll
LLVM ERROR: Cannot select: 0xa5302b0: glue = carry_false [ID=7]
on this code:
target triple = "i386-pc-linux-gnu"
define i32 @fxpadd(i32 %cl) {
entry:
%0 = zext i32 %cl to i128
%1 = zext i32 %cl to i128
%2 = add i128 %1, %0
br label %L1001510
L1001510: ; preds = %L13400
%vr1484.5 = trunc i128 %2 to i32
ret i32 %vr1484.5
}
This code was whittled down from a fixed point math t...
2011 Aug 19
0
[LLVMdev] LLVM ERROR: Cannot select error in simple i128 math?
...; wrote:
> In both LLVM 2.9 and the current svn head, I get the following error when running llc
>
> % llc < fxp2.ll
> LLVM ERROR: Cannot select: 0xa5302b0: glue = carry_false [ID=7]
>
> on this code:
>
> target triple = "i386-pc-linux-gnu"
>
> define i32 @fxpadd(i32 %cl) {
> entry:
> %0 = zext i32 %cl to i128
> %1 = zext i32 %cl to i128
> %2 = add i128 %1, %0
> br label %L1001510
>
> L1001510: ; preds = %L13400
> %vr1484.5 = trunc i128 %2 to i32
> ret i32 %vr1484.5
>
> }
>
&g...