llvm-for-llvmta/test/Transforms/CodeExtractor/BlockAddressReference.ll

37 lines
1016 B
LLVM

; RUN: opt < %s -loop-simplify -loop-extract -S | FileCheck %s
@label = common local_unnamed_addr global i8* null
; CHECK: define
; no outlined function
; CHECK-NOT: define
define i32 @sterix(i32 %n) {
entry:
%tobool = icmp ne i32 %n, 0
; this blockaddress references a basic block that goes in the extracted loop
%cond = select i1 %tobool, i8* blockaddress(@sterix, %for.cond), i8* blockaddress(@sterix, %exit)
store i8* %cond, i8** @label
%cmp5 = icmp sgt i32 %n, 0
br i1 %cmp5, label %for.body, label %exit
for.cond:
%mul = shl nsw i32 %s.06, 1
%exitcond = icmp eq i32 %inc, %n
br i1 %exitcond, label %exit.loopexit, label %for.body
for.body:
%i.07 = phi i32 [ %inc, %for.cond ], [ 0, %entry ]
%s.06 = phi i32 [ %mul, %for.cond ], [ 1, %entry ]
%inc = add nuw nsw i32 %i.07, 1
br label %for.cond
exit.loopexit:
%phitmp = icmp ne i32 %s.06, 2
%phitmp8 = zext i1 %phitmp to i32
br label %exit
exit:
%s.1 = phi i32 [ 1, %entry ], [ %phitmp8, %exit.loopexit ]
ret i32 %s.1
}