2009-09-08 16:50:01 +00:00
|
|
|
; RUN: opt %s -globalsmodref-aa -gvn | llvm-dis | not grep load
|
2005-03-23 23:48:56 +00:00
|
|
|
|
2007-11-23 19:30:27 +00:00
|
|
|
; This test requires the use of previous analyses to determine that
|
2005-03-23 23:48:56 +00:00
|
|
|
; doesnotmodX does not modify X (because 'sin' doesn't).
|
|
|
|
|
2007-11-23 19:30:27 +00:00
|
|
|
@X = internal global i32 4 ; <i32*> [#uses=2]
|
2005-03-23 23:48:56 +00:00
|
|
|
|
2007-11-23 19:30:27 +00:00
|
|
|
declare double @sin(double) readnone
|
2005-03-23 23:48:56 +00:00
|
|
|
|
2007-11-23 19:30:27 +00:00
|
|
|
define i32 @test(i32* %P) {
|
|
|
|
store i32 12, i32* @X
|
|
|
|
call double @doesnotmodX( double 1.000000e+00 ) ; <double>:1 [#uses=0]
|
|
|
|
%V = load i32* @X ; <i32> [#uses=1]
|
|
|
|
ret i32 %V
|
2005-03-23 23:48:56 +00:00
|
|
|
}
|
|
|
|
|
2007-11-23 19:30:27 +00:00
|
|
|
define double @doesnotmodX(double %V) {
|
|
|
|
%V2 = call double @sin( double %V ) readnone ; <double> [#uses=1]
|
|
|
|
ret double %V2
|
2005-03-23 23:48:56 +00:00
|
|
|
}
|