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llvm-6502/test/Integer/indirectcall_bt.ll

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; RUN: llvm-as %s -o - | llvm-dis > %t1.ll
; RUN: llvm-as %t1.ll -o - | llvm-dis > %t2.ll
; RUN: diff %t1.ll %t2.ll
declare i32 @"atoi"(i8 *)
define i63 @"fib"(i63 %n)
begin
icmp ult i63 %n, 2 ; {i1}:1
br i1 %1, label %BaseCase, label %RecurseCase
BaseCase:
ret i63 1
RecurseCase:
%n2 = sub i63 %n, 2
%n1 = sub i63 %n, 1
%f2 = call i63(i63) * @fib(i63 %n2)
%f1 = call i63(i63) * @fib(i63 %n1)
%result = add i63 %f2, %f1
ret i63 %result
end
define i63 @"realmain"(i32 %argc, i8 ** %argv)
begin
icmp eq i32 %argc, 2 ; {i1}:1
br i1 %1, label %HasArg, label %Continue
HasArg:
; %n1 = atoi(argv[1])
%n1 = add i32 1, 1
br label %Continue
Continue:
%n = phi i32 [%n1, %HasArg], [1, %0]
%N = sext i32 %n to i63
%F = call i63(i63) *@fib(i63 %N)
ret i63 %F
end
define i63 @"trampoline"(i63 %n, i63(i63)* %fibfunc)
begin
%F = call i63(i63) *%fibfunc(i63 %n)
ret i63 %F
end
define i32 @"main"()
begin
%Result = call i63 @trampoline(i63 10, i63(i63) *@fib)
%Result2 = trunc i63 %Result to i32
ret i32 %Result2
end