llvm/test/CodeGen/X86/call-range-attr.ll

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 4
; RUN: llc -mtriple=x86_64-unknown-linux-gnu < %s | FileCheck %s

declare i64 @returns_i64()

define i64 @call_range_nonzero_lo() nounwind {
; CHECK-LABEL: call_range_nonzero_lo:
; CHECK:       # %bb.0:
; CHECK-NEXT:    pushq %rax
; CHECK-NEXT:    callq returns_i64@PLT
; CHECK-NEXT:    andq $-8, %rax
; CHECK-NEXT:    popq %rcx
; CHECK-NEXT:    retq
  %v = call range(i64 1, 2305843009213693952) i64 @returns_i64()
  %r = and i64 %v, 2305843009213693944
  ret i64 %r
}

define i64 @call_range_zero_lo() nounwind {
; CHECK-LABEL: call_range_zero_lo:
; CHECK:       # %bb.0:
; CHECK-NEXT:    pushq %rax
; CHECK-NEXT:    callq returns_i64@PLT
; CHECK-NEXT:    andl $-8, %eax
; CHECK-NEXT:    popq %rcx
; CHECK-NEXT:    retq
  %v = call range(i64 0, 256) i64 @returns_i64()
  %r = and i64 %v, 248
  ret i64 %r
}

define i64 @call_range_narrow() nounwind {
; CHECK-LABEL: call_range_narrow:
; CHECK:       # %bb.0:
; CHECK-NEXT:    pushq %rax
; CHECK-NEXT:    callq returns_i64@PLT
; CHECK-NEXT:    andl $-8, %eax
; CHECK-NEXT:    popq %rcx
; CHECK-NEXT:    retq
  %v = call range(i64 100, 256) i64 @returns_i64()
  %r = and i64 %v, 248
  ret i64 %r
}

; Negative tests

define i64 @call_no_range() nounwind {
; CHECK-LABEL: call_no_range:
; CHECK:       # %bb.0:
; CHECK-NEXT:    pushq %rax
; CHECK-NEXT:    callq returns_i64@PLT
; CHECK-NEXT:    movabsq $2305843009213693944, %rcx # imm = 0x1FFFFFFFFFFFFFF8
; CHECK-NEXT:    andq %rcx, %rax
; CHECK-NEXT:    popq %rcx
; CHECK-NEXT:    retq
  %v = call i64 @returns_i64()
  %r = and i64 %v, 2305843009213693944
  ret i64 %r
}

define i64 @call_wrapped_range() nounwind {
; CHECK-LABEL: call_wrapped_range:
; CHECK:       # %bb.0:
; CHECK-NEXT:    pushq %rax
; CHECK-NEXT:    callq returns_i64@PLT
; CHECK-NEXT:    movabsq $2305843009213693944, %rcx # imm = 0x1FFFFFFFFFFFFFF8
; CHECK-NEXT:    andq %rcx, %rax
; CHECK-NEXT:    popq %rcx
; CHECK-NEXT:    retq
  %v = call range(i64 -100, 100) i64 @returns_i64()
  %r = and i64 %v, 2305843009213693944
  ret i64 %r
}