- // If it's re-defined by an early clobber somewhere in the live range, then
- // it's not safe to eliminate the copy. FIXME: This is a temporary workaround.
- // See PR3149:
- // 172 %ECX<def> = MOV32rr %reg1039<kill>
- // 180 INLINEASM <es:subl $5,$1
- // sbbl $3,$0>, 10, %EAX<def>, 14, %ECX<earlyclobber,def>, 9,
- // %EAX<kill>,
- // 36, <fi#0>, 1, %reg0, 0, 9, %ECX<kill>, 36, <fi#1>, 1, %reg0, 0
- // 188 %EAX<def> = MOV32rr %EAX<kill>
- // 196 %ECX<def> = MOV32rr %ECX<kill>
- // 204 %ECX<def> = MOV32rr %ECX<kill>
- // 212 %EAX<def> = MOV32rr %EAX<kill>
- // 220 %EAX<def> = MOV32rr %EAX
- // 228 %reg1039<def> = MOV32rr %ECX<kill>
- // The early clobber operand ties ECX input to the ECX def.
- //
- // The live interval of ECX is represented as this:
- // %reg20,inf = [46,47:1)[174,230:0) 0@174-(230) 1@46-(47)
- // The coalescer has no idea there was a def in the middle of [174,230].
- if (AValNo->hasRedefByEC())
- return false;