llvm/test/Transforms/LICM/hoist-readonly-memory-def.ll

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 5
; RUN: opt -S -passes="function(print<memoryssa>),cgscc(function-attrs),function(loop-mssa(licm))" < %s 2>/dev/null | FileCheck %s

@g = external global i16

define i16 @fn() {
; CHECK-LABEL: define i16 @fn(
; CHECK-SAME: ) #[[ATTR0:[0-9]+]] {
; CHECK-NEXT:    [[V:%.*]] = load i16, ptr @g, align 2
; CHECK-NEXT:    ret i16 [[V]]
;
  %v = load i16, ptr @g
  ret i16 %v
}

declare void @fn2(i16)

define void @test() {
; CHECK-LABEL: define void @test() {
; CHECK-NEXT:  [[ENTRY:.*:]]
; CHECK-NEXT:    br label %[[LOOP:.*]]
; CHECK:       [[LOOP]]:
; CHECK-NEXT:    [[CALL:%.*]] = call i16 @fn(i32 0)
; CHECK-NEXT:    call void @fn2(i16 [[CALL]])
; CHECK-NEXT:    br i1 false, label %[[LOOP]], label %[[EXIT:.*]]
; CHECK:       [[EXIT]]:
; CHECK-NEXT:    ret void
;
entry:
  br label %loop

loop:
  %call = call i16 @fn(i32 0) ; intentional signature mismatch
  call void @fn2(i16 %call)
  br i1 false, label %loop, label %exit

exit:
  ret void
}