45 lines
999 B
LLVM
45 lines
999 B
LLVM
; RUN: llc -march=aarch64 -mtriple=aarch64-none-linux-gnu < %s | FileCheck %s
|
|
|
|
; and can be eliminated
|
|
; CHECK-LABEL: {{^}}test_call_known_max_range:
|
|
; CHECK: bl foo
|
|
; CHECK-NOT: and
|
|
; CHECK: ret
|
|
define i32 @test_call_known_max_range() #0 {
|
|
entry:
|
|
%id = tail call i32 @foo(), !range !0
|
|
%and = and i32 %id, 1023
|
|
ret i32 %and
|
|
}
|
|
|
|
; CHECK-LABEL: {{^}}test_call_known_trunc_1_bit_range:
|
|
; CHECK: bl foo
|
|
; CHECK: and w{{[0-9]+}}, w0, #0x1ff
|
|
; CHECK: ret
|
|
define i32 @test_call_known_trunc_1_bit_range() #0 {
|
|
entry:
|
|
%id = tail call i32 @foo(), !range !0
|
|
%and = and i32 %id, 511
|
|
ret i32 %and
|
|
}
|
|
|
|
; CHECK-LABEL: {{^}}test_call_known_max_range_m1:
|
|
; CHECK: bl foo
|
|
; CHECK: and w{{[0-9]+}}, w0, #0xff
|
|
; CHECK: ret
|
|
define i32 @test_call_known_max_range_m1() #0 {
|
|
entry:
|
|
%id = tail call i32 @foo(), !range !1
|
|
%and = and i32 %id, 255
|
|
ret i32 %and
|
|
}
|
|
|
|
|
|
declare i32 @foo()
|
|
|
|
attributes #0 = { norecurse nounwind }
|
|
attributes #1 = { nounwind readnone }
|
|
|
|
!0 = !{i32 0, i32 1024}
|
|
!1 = !{i32 0, i32 1023}
|