1; RUN: llc < %s -mtriple=i686-linux -mattr=+sse2 | grep movsd | count 5
2; RUN: llc < %s -mtriple=i686-linux -mattr=+sse2 | grep movl | count 2
3
4@atomic = global double 0.000000e+00		; <double*> [#uses=1]
5@atomic2 = global double 0.000000e+00		; <double*> [#uses=1]
6@anything = global i64 0		; <i64*> [#uses=1]
7@ioport = global i32 0		; <i32*> [#uses=2]
8
9define i16 @f(i64 %x, double %y) {
10	%b = bitcast i64 %x to double		; <double> [#uses=1]
11	store volatile double %b, double* @atomic ; one processor operation only
12	store volatile double 0.000000e+00, double* @atomic2 ; one processor operation only
13	%b2 = bitcast double %y to i64		; <i64> [#uses=1]
14	store volatile i64 %b2, i64* @anything ; may transform to store of double
15	%l = load volatile i32* @ioport		; must not narrow
16	%t = trunc i32 %l to i16		; <i16> [#uses=1]
17	%l2 = load volatile i32* @ioport		; must not narrow
18	%tmp = lshr i32 %l2, 16		; <i32> [#uses=1]
19	%t2 = trunc i32 %tmp to i16		; <i16> [#uses=1]
20	%f = add i16 %t, %t2		; <i16> [#uses=1]
21	ret i16 %f
22}
23