mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-23 03:02:36 +01:00
25 lines
723 B
LLVM
25 lines
723 B
LLVM
; RUN: opt < %s -basic-aa -globals-aa -gvn -S | FileCheck %s
|
|
|
|
; 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) {
|
|
; CHECK: @test
|
|
; CHECK-NEXT: store i32 12, i32* @X
|
|
; CHECK-NEXT: call double @doesnotmodX(double 1.000000e+00)
|
|
; CHECK-NEXT: ret i32 12
|
|
store i32 12, i32* @X
|
|
call double @doesnotmodX( double 1.000000e+00 ) ; <double>:1 [#uses=0]
|
|
%V = load i32, 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
|
|
}
|