llvm/test/LLC/fwdtwice.ll
Vikram S. Adve a7a1c7e971 Some of these are feature tests, not regression tests.
This directory needs to be reorganized and some of the tests
need changes to make them executable.  Also comments would help...


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2865 91177308-0d34-0410-b5e6-96231b3b80d8
2002-07-10 21:54:05 +00:00

34 lines
1.0 KiB
LLVM

;;
;; Test the sequence:
;; cast -> setle 0, %cast -> br %cond
;; This sequence should cause the cast value to be forwarded twice,
;; i.e., cast is forwarded to the setle and teh setle is forwarded
;; to the branch.
;; register argument of the "branch-on-register" instruction, i.e.,
;;
;; This produces the bogus output instruction:
;; brlez <NULL VALUE>, .L_SumArray_bb3.
;; This came from %bb1 of sumarrray.ll generated from sumarray.c.
;;;; ******************************************************
implementation
;;;; ******************************************************
int "SumArray"(int %Num)
begin
bb0: ;[#uses=3]
br label %Top
Top:
%Num = alloca int ; <int *> [#uses=2]
store int %Num, int * %Num
%reg108 = load int * %Num ; <int> [#uses=2]
%cast1006 = cast int %reg108 to uint ; <uint> [#uses=1]
%cond1001 = setle uint %cast1006, 0 ; <bool> [#uses=1]
br bool %cond1001, label %bb6, label %Top
bb6:
ret int 42
end