llvm-for-llvmta/test/CodeGen/AArch64/shrink-constant-multiple-us...

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2022-04-25 10:02:23 +02:00
; RUN: llc -mtriple arm64-ios- %s -o - | FileCheck %s
; Check the -8 constant is shrunk if there are multiple users of the AND instruction.
; CHECK-LABEL: _test:
; CHECK: and x0, x0, #0xfffffff8
; CHECK-NEXT: add x19, x0, #10
; CHECK-NEXT: bl _user
define i64 @test(i32 %a) {
%ext = zext i32 %a to i64
%v1 = and i64 %ext, -8
%v2 = add i64 %v1, 10
call void @user(i64 %v1)
ret i64 %v2
}
declare void @user(i64)