mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-07-30 19:29:20 +00:00
49589f0d0e
versions of Bash. In addition, I can back out the change to the lit built-in shell test runner to support this. This should fix the majority of fallout on Darwin, but I suspect there will be a few straggling issues. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159544 91177308-0d34-0410-b5e6-96231b3b80d8
24 lines
756 B
LLVM
24 lines
756 B
LLVM
; Duplicate the return into if.end to enable TCE.
|
|
; RUN: opt %s -tailcallelim -stats -disable-output 2>&1 | grep "Number of return duplicated"
|
|
|
|
define i32 @fib(i32 %n) nounwind ssp {
|
|
entry:
|
|
%cmp = icmp slt i32 %n, 2
|
|
br i1 %cmp, label %if.then, label %if.end
|
|
|
|
if.then: ; preds = %entry
|
|
br label %return
|
|
|
|
if.end: ; preds = %entry
|
|
%sub = add nsw i32 %n, -2
|
|
%call = call i32 @fib(i32 %sub)
|
|
%sub3 = add nsw i32 %n, -1
|
|
%call4 = call i32 @fib(i32 %sub3)
|
|
%add = add nsw i32 %call, %call4
|
|
br label %return
|
|
|
|
return: ; preds = %if.end, %if.then
|
|
%retval.0 = phi i32 [ 1, %if.then ], [ %add, %if.end ]
|
|
ret i32 %retval.0
|
|
}
|