| // RUN: clang-cc -emit-llvm < %s -o %t && |
| // RUN: grep volatile %t | count 25 && |
| // RUN: grep memcpy %t | count 7 |
| |
| // The number 25 comes from the current codegen for volatile loads; |
| // if this number changes, it's not necessarily something wrong, but |
| // something has changed to affect volatile load/store codegen |
| |
| int S; |
| volatile int vS; |
| |
| int* pS; |
| volatile int* pvS; |
| |
| int A[10]; |
| volatile int vA[10]; |
| |
| struct { int x; } F; |
| struct { volatile int x; } vF; |
| |
| struct { int x; } F2; |
| volatile struct { int x; } vF2; |
| volatile struct { int x; } *vpF2; |
| |
| struct { struct { int y; } x; } F3; |
| volatile struct { struct { int y; } x; } vF3; |
| |
| struct { int x:3; } BF; |
| struct { volatile int x:3; } vBF; |
| |
| typedef int v4si __attribute__ ((vector_size (16))); |
| v4si V; |
| volatile v4si vV; |
| |
| typedef __attribute__(( ext_vector_type(4) )) int extv4; |
| extv4 VE; |
| volatile extv4 vVE; |
| |
| volatile struct {int x;} aggFct(void); |
| |
| void main() { |
| int i; |
| |
| // load |
| i=S; |
| i=vS; |
| i=*pS; |
| i=*pvS; |
| i=A[2]; |
| i=vA[2]; |
| i=F.x; |
| i=vF.x; |
| i=F2.x; |
| i=vF2.x; |
| i=vpF2->x; |
| i=F3.x.y; |
| i=vF3.x.y; |
| i=BF.x; |
| i=vBF.x; |
| i=V[3]; |
| i=vV[3]; |
| i=VE.yx[1]; |
| i=vVE.zy[1]; |
| i = aggFct().x; |
| |
| |
| // store |
| S=i; |
| vS=i; |
| *pS=i; |
| *pvS=i; |
| A[2]=i; |
| vA[2]=i; |
| F.x=i; |
| vF.x=i; |
| F2.x=i; |
| vF2.x=i; |
| vpF2->x=i; |
| vF3.x.y=i; |
| BF.x=i; |
| vBF.x=i; |
| V[3]=i; |
| vV[3]=i; |
| |
| // other ops: |
| ++S; |
| ++vS; |
| i+=S; |
| i+=vS; |
| (void)vF2; |
| vF2 = vF2; |
| vF2 = vF2 = vF2; |
| vF2 = (vF2, vF2); |
| } |