| ; RUN: opt < %s -basicaa -globalsmodref-aa -gvn -S | not grep load |
| |
| ; This test requires the use of previous analyses to determine that |
| ; doesnotmodX does not modify X (because 'sin' doesn't). |
| |
| @X = internal global i32 4 ; <i32*> [#uses=2] |
| |
| declare double @sin(double) readnone |
| |
| 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 |
| } |
| |
| define double @doesnotmodX(double %V) { |
| %V2 = call double @sin( double %V ) readnone ; <double> [#uses=1] |
| ret double %V2 |
| } |
