forked from OSchip/llvm-project
89 lines
1.3 KiB
C
89 lines
1.3 KiB
C
// RUN: clang -emit-llvm < %s | grep volatile | count 26
|
|
|
|
// The number 26 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; // FIXME: This generates an extra volatile load
|
|
V[3]=i;
|
|
vV[3]=i;
|
|
|
|
// other ops:
|
|
++S;
|
|
++vS;
|
|
i+=S;
|
|
i+=vS;
|
|
}
|