1 ; RUN: llc < %s -march=x86 | not grep movsd 2 ; RUN: llc < %s -march=x86 | grep movw 3 ; RUN: llc < %s -march=x86 | grep addw 4 ; These transforms are turned off for volatile loads and stores. 5 ; Check that they weren't turned off for all loads and stores! 6 7 @atomic = global double 0.000000e+00 ; <double*> [#uses=1] 8 @atomic2 = global double 0.000000e+00 ; <double*> [#uses=1] 9 @ioport = global i32 0 ; <i32*> [#uses=1] 10 @ioport2 = global i32 0 ; <i32*> [#uses=1] 11 12 define i16 @f(i64 %x) { 13 %b = bitcast i64 %x to double ; <double> [#uses=1] 14 store double %b, double* @atomic 15 store double 0.000000e+00, double* @atomic2 16 %l = load i32* @ioport ; <i32> [#uses=1] 17 %t = trunc i32 %l to i16 ; <i16> [#uses=1] 18 %l2 = load i32* @ioport2 ; <i32> [#uses=1] 19 %tmp = lshr i32 %l2, 16 ; <i32> [#uses=1] 20 %t2 = trunc i32 %tmp to i16 ; <i16> [#uses=1] 21 %f = add i16 %t, %t2 ; <i16> [#uses=1] 22 ret i16 %f 23 } 24
