1 ; RUN: opt < %s -aa-pipeline=basic-aa,globals-aa -passes='require<globals-aa>,gvn' -S | FileCheck %s
3 ; This test requires the use of previous analyses to determine that
4 ; doesnotmodX does not modify X (because 'sin' doesn't).
6 @X = internal global i32 4 ; <ptr> [#uses=2]
8 declare double @sin(double) readnone
10 define i32 @test(ptr %P) {
12 ; CHECK-NEXT: store i32 12, ptr @X
13 ; CHECK-NEXT: call double @doesnotmodX(double 1.000000e+00)
14 ; CHECK-NEXT: ret i32 12
16 call double @doesnotmodX( double 1.000000e+00 ) ; <double>:1 [#uses=0]
17 %V = load i32, ptr @X ; <i32> [#uses=1]
21 define double @doesnotmodX(double %V) {
22 %V2 = call double @sin( double %V ) readnone ; <double> [#uses=1]