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llvm-mirror/test/Transforms/InstCombine/2003-07-21-ExternalConstant.ll
Dan Gohman 205b641954 Change tests from "opt %s" to "opt < %s" so that opt doesn't see the
input filename so that opt doesn't print the input filename in the
output so that grep lines in the tests don't unintentionally match
strings in the input filename.

llvm-svn: 81537
2009-09-11 18:01:28 +00:00

45 lines
1.2 KiB
LLVM

;
; Test: ExternalConstant
;
; Description:
; This regression test helps check whether the instruction combining
; optimization pass correctly handles global variables which are marked
; as external and constant.
;
; If a problem occurs, we should die on an assert(). Otherwise, we
; should pass through the optimizer without failure.
;
; Extra code:
; RUN: opt < %s -instcombine
; END.
target datalayout = "e-p:32:32"
@silly = external constant i32 ; <i32*> [#uses=1]
declare void @bzero(i8*, i32)
declare void @bcopy(i8*, i8*, i32)
declare i32 @bcmp(i8*, i8*, i32)
declare i32 @fputs(i8*, i8*)
declare i32 @fputs_unlocked(i8*, i8*)
define i32 @function(i32 %a.1) {
entry:
%a.0 = alloca i32 ; <i32*> [#uses=2]
%result = alloca i32 ; <i32*> [#uses=2]
store i32 %a.1, i32* %a.0
%tmp.0 = load i32* %a.0 ; <i32> [#uses=1]
%tmp.1 = load i32* @silly ; <i32> [#uses=1]
%tmp.2 = add i32 %tmp.0, %tmp.1 ; <i32> [#uses=1]
store i32 %tmp.2, i32* %result
br label %return
return: ; preds = %entry
%tmp.3 = load i32* %result ; <i32> [#uses=1]
ret i32 %tmp.3
}