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; RUN: llc < %s -march=x86 | not grep movsd
; RUN: llc < %s -march=x86 | grep movw
; RUN: llc < %s -march=x86 | grep addw
; These transforms are turned off for volatile loads and stores.
; Check that they weren't turned off for all loads and stores!
@atomic = global double 0.000000e+00 ; <double*> [#uses=1]
@atomic2 = global double 0.000000e+00 ; <double*> [#uses=1]
@ioport = global i32 0 ; <i32*> [#uses=1]
@ioport2 = global i32 0 ; <i32*> [#uses=1]
define i16 @f(i64 %x) {
%b = bitcast i64 %x to double ; <double> [#uses=1]
store double %b, double* @atomic
store double 0.000000e+00, double* @atomic2
%l = load i32* @ioport ; <i32> [#uses=1]
%t = trunc i32 %l to i16 ; <i16> [#uses=1]
%l2 = load i32* @ioport2 ; <i32> [#uses=1]
%tmp = lshr i32 %l2, 16 ; <i32> [#uses=1]
%t2 = trunc i32 %tmp to i16 ; <i16> [#uses=1]
%f = add i16 %t, %t2 ; <i16> [#uses=1]
ret i16 %f
}
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