llvm-project/llvm/test/CodeGen/SystemZ/asm-13.ll

; Test the "K" constraint (16-bit signed constants).
;
; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s

; Test 1 below the first valid value.
define i32 @f1() {
; CHECK: f1:
; CHECK: iilf [[REG:%r[0-5]]], 4294934527
; CHECK: blah %r2 [[REG]]
; CHECK: br %r14
  %val = call i32 asm "blah $0 $1", "=&r,rK" (i32 -32769)
  ret i32 %val
}

; Test the first valid value.
define i32 @f2() {
; CHECK: f2:
; CHECK: blah %r2 -32768
; CHECK: br %r14
  %val = call i32 asm "blah $0 $1", "=&r,rK" (i32 -32768)
  ret i32 %val
}

; Test the last valid value.
define i32 @f3() {
; CHECK: f3:
; CHECK: blah %r2 32767
; CHECK: br %r14
  %val = call i32 asm "blah $0 $1", "=&r,rK" (i32 32767)
  ret i32 %val
}

; Test 1 above the last valid value.
define i32 @f4() {
; CHECK: f4:
; CHECK: llill [[REG:%r[0-5]]], 32768
; CHECK: blah %r2 [[REG]]
; CHECK: br %r14
  %val = call i32 asm "blah $0 $1", "=&r,rK" (i32 32768)
  ret i32 %val
}