Home | History | Annotate | Download | only in Blackfin
      1 ; RUN: llc < %s -march=bfin -verify-machineinstrs
      2 
      3 ; These functions have just the right size to annoy the register scavenger: They
      4 ; use all the scratch registers, but not all the callee-saved registers.
      5 
      6 define void @test_add(i64 %AL, i64 %AH, i64 %BL, i64 %BH, i64* %RL, i64* %RH) {
      7 entry:
      8 	%tmp1 = zext i64 %AL to i128		; <i128> [#uses=1]
      9 	%tmp23 = zext i64 %AH to i128		; <i128> [#uses=1]
     10 	%tmp4 = shl i128 %tmp23, 64		; <i128> [#uses=1]
     11 	%tmp5 = or i128 %tmp4, %tmp1		; <i128> [#uses=1]
     12 	%tmp67 = zext i64 %BL to i128		; <i128> [#uses=1]
     13 	%tmp89 = zext i64 %BH to i128		; <i128> [#uses=1]
     14 	%tmp11 = shl i128 %tmp89, 64		; <i128> [#uses=1]
     15 	%tmp12 = or i128 %tmp11, %tmp67		; <i128> [#uses=1]
     16 	%tmp15 = add i128 %tmp12, %tmp5		; <i128> [#uses=2]
     17 	%tmp1617 = trunc i128 %tmp15 to i64		; <i64> [#uses=1]
     18 	store i64 %tmp1617, i64* %RL
     19 	%tmp21 = lshr i128 %tmp15, 64		; <i128> [#uses=1]
     20 	%tmp2122 = trunc i128 %tmp21 to i64		; <i64> [#uses=1]
     21 	store i64 %tmp2122, i64* %RH
     22 	ret void
     23 }
     24 
     25 define void @test_sub(i64 %AL, i64 %AH, i64 %BL, i64 %BH, i64* %RL, i64* %RH) {
     26 entry:
     27 	%tmp1 = zext i64 %AL to i128		; <i128> [#uses=1]
     28 	%tmp23 = zext i64 %AH to i128		; <i128> [#uses=1]
     29 	%tmp4 = shl i128 %tmp23, 64		; <i128> [#uses=1]
     30 	%tmp5 = or i128 %tmp4, %tmp1		; <i128> [#uses=1]
     31 	%tmp67 = zext i64 %BL to i128		; <i128> [#uses=1]
     32 	%tmp89 = zext i64 %BH to i128		; <i128> [#uses=1]
     33 	%tmp11 = shl i128 %tmp89, 64		; <i128> [#uses=1]
     34 	%tmp12 = or i128 %tmp11, %tmp67		; <i128> [#uses=1]
     35 	%tmp15 = sub i128 %tmp5, %tmp12		; <i128> [#uses=2]
     36 	%tmp1617 = trunc i128 %tmp15 to i64		; <i64> [#uses=1]
     37 	store i64 %tmp1617, i64* %RL
     38 	%tmp21 = lshr i128 %tmp15, 64		; <i128> [#uses=1]
     39 	%tmp2122 = trunc i128 %tmp21 to i64		; <i64> [#uses=1]
     40 	store i64 %tmp2122, i64* %RH
     41 	ret void
     42 }
     43