test/Transforms/LICM/call_sink_const_function.ll


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16

; RUN: llvm-upgrade < %s | llvm-as | opt -basicaa -licm | llvm-dis | %prcontext sin 1 | grep Out: 
declare double %sin(double)
declare void %foo()

double %test(double %X) {
	br label %Loop

Loop:
	call void %foo()    ;; Unknown effects!

	%A = call double %sin(double %X)   ;; Can still hoist/sink call
	br bool true, label %Loop, label %Out

Out:
	ret double %A
}