Home | History | Annotate | Download | only in Thumb
      1 ; RUN: llc < %s -march=thumb
      2 
      3 ; Test Thumb-mode "I" constraint, for ADD immediate.
      4 define i32 @testI(i32 %x) {
      5 	%y = call i32 asm "add $0, $1, $2", "=r,r,I"( i32 %x, i32 255 ) nounwind
      6 	ret i32 %y
      7 }
      8 
      9 ; Test Thumb-mode "J" constraint, for negated ADD immediates.
     10 define void @testJ() {
     11 	tail call void asm sideeffect ".word $0", "J"( i32 -255 ) nounwind
     12 	ret void
     13 }
     14 
     15 ; Test Thumb-mode "K" constraint, for compatibility with GCC's internal use.
     16 define void @testK() {
     17 	tail call void asm sideeffect ".word $0", "K"( i32 65280 ) nounwind
     18 	ret void
     19 }
     20 
     21 ; Test Thumb-mode "L" constraint, for 3-operand ADD immediates.
     22 define i32 @testL(i32 %x) {
     23 	%y = call i32 asm "add $0, $1, $2", "=r,r,L"( i32 %x, i32 -7 ) nounwind
     24 	ret i32 %y
     25 }
     26 
     27 ; Test Thumb-mode "M" constraint, for "ADD r = sp + imm".
     28 define i32 @testM() {
     29 	%y = call i32 asm "add $0, sp, $1", "=r,M"( i32 1020 ) nounwind
     30 	ret i32 %y
     31 }
     32 
     33 ; Test Thumb-mode "N" constraint, for values between 0 and 31.
     34 define i32 @testN(i32 %x) {
     35 	%y = call i32 asm "lsl $0, $1, $2", "=r,r,N"( i32 %x, i32 31 ) nounwind
     36 	ret i32 %y
     37 }
     38 
     39 ; Test Thumb-mode "O" constraint, for "ADD sp = sp + imm".
     40 define void @testO() {
     41 	tail call void asm sideeffect "add sp, sp, $0; add sp, sp, $1", "O,O"( i32 -508, i32 508 ) nounwind
     42         ret void
     43 }
     44