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llvm-mirror/test/CodeGen/ARM/inlineasm-imm-thumb2.ll
Eric Christopher e21afdb3b5 Add some testing for thumb1 and thumb2 inline asm immediate constraints
and fix a couple of bugs on inspection.

Also fixes PR26061.

llvm-svn: 257122
2016-01-08 00:34:44 +00:00

32 lines
995 B
LLVM

; RUN: llc -mtriple=thumbv7-linux-gnu -no-integrated-as %s -o /dev/null
; Test thumb2-mode "I" constraint, for any Data Processing immediate.
define i32 @testI(i32 %x) {
%y = call i32 asm "add $0, $1, $2", "=r,r,I"( i32 %x, i32 65280 ) nounwind
ret i32 %y
}
; Test thumb2-mode "J" constraint, for compatibility with unknown use in GCC.
define void @testJ() {
tail call void asm sideeffect ".word $0", "J"( i32 4080 ) nounwind
ret void
}
; Test thumb2-mode "K" constraint, for bitwise inverted Data Processing immediates.
define void @testK() {
tail call void asm sideeffect ".word $0", "K"( i32 16777215 ) nounwind
ret void
}
; Test thumb2-mode "L" constraint, for negated Data Processing immediates.
define void @testL() {
tail call void asm sideeffect ".word $0", "L"( i32 -65280 ) nounwind
ret void
}
; Test thumb2-mode "M" constraint, for value between 0 and 32.
define i32 @testM(i32 %x) {
%y = call i32 asm "lsl $0, $1, $2", "=r,r,M"( i32 %x, i32 31 ) nounwind
ret i32 %y
}