llvm dev - Nov 2010 - [LLVMdev] Sparc regression in V119382 "pseudo instruction expansion"

The following code compiles for Sparc prior to version 119382 but causes 
a llc to hang in version 119382 and later.  I glanced at it but haven't 
figure it out yet.  I figure I'd ping the list to see if it's an obvious
fix to someone else.

define void @test(i16 %di, i32 %L_num, i32 %tmp1, i16* %P) {
         %X = shl i16 %di, 1          ; <i16> [#uses=1]
         %tmp28 = shl i32 %L_num, 1            ; <i32> [#uses=1]
         %tmp31 = icmp slt i32 %tmp28, %tmp1   ; <i1> [#uses=1]
         %tmp31.upgrd = zext i1 %tmp31 to i16          ; <i16> [#uses=1]
         %tmp371 = or i16 %tmp31.upgrd, %X            ; <i16> [#uses=1]
         %div.0.be.i.i.i.i = xor i16 %tmp371, 1         ; <i16> [#uses=1]
         store i16 %div.0.be.i.i.i.i, i16* %P
         ret void
}

To follow up I think it may be a bug in Sparc's 
EmitInstrWithCustomInserter but I'm getting distracted by some other stuff.

On 11/29/10 1:29 PM, llvmjp wrote:
> The following code compiles for Sparc prior to version 119382 but causes
> a llc to hang in version 119382 and later. I glanced at it but haven't
> figure it out yet. I figure I'd ping the list to see if it's an
obvious
> fix to someone else.
>
> define void @test(i16 %di, i32 %L_num, i32 %tmp1, i16* %P) {
> %X = shl i16 %di, 1 ; <i16> [#uses=1]
> %tmp28 = shl i32 %L_num, 1 ; <i32> [#uses=1]
> %tmp31 = icmp slt i32 %tmp28, %tmp1 ; <i1> [#uses=1]
> %tmp31.upgrd = zext i1 %tmp31 to i16 ; <i16> [#uses=1]
> %tmp371 = or i16 %tmp31.upgrd, %X ; <i16> [#uses=1]
> %div.0.be.i.i.i.i = xor i16 %tmp371, 1 ; <i16> [#uses=1]
> store i16 %div.0.be.i.i.i.i, i16* %P
> ret void
> }