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4d5e834c5b
- Factor out a shouldCastToInt() method. - Also pass through pointer type values to not be casted to integer. CC @uweigand
164 lines
6.1 KiB
C
164 lines
6.1 KiB
C
// RUN: %clang_cc1 %s -emit-llvm -o - -triple=i686-apple-darwin9 | FileCheck %s --check-prefixes=CHECK,X86
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// RUN: %clang_cc1 %s -emit-llvm -o - -triple=s390x-linux-gnu | FileCheck %s --check-prefixes=CHECK,SYSTEMZ
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// CHECK: @[[NONSTATIC_GLOB_POINTER_FROM_INT:.+]] = global ptr null
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// CHECK: @[[GLOB_POINTER:.+]] = internal global ptr null
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// CHECK: @[[GLOB_POINTER_FROM_INT:.+]] = internal global ptr null
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// CHECK: @[[GLOB_INT:.+]] = internal global i32 0
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// CHECK: @[[GLOB_FLT:.+]] = internal global float {{[0e\+-\.]+}}, align
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// CHECK: @[[GLOB_DBL:.+]] = internal global double {{[0e\+-\.]+}}, align
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// X86: @[[GLOB_LONGDBL:.+]] = internal global x86_fp80 {{[0xK]+}}, align
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// SYSTEMZ: @[[GLOB_LONGDBL:.+]] = internal global fp128 {{[0xL]+}}, align
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int atomic(void) {
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// non-sensical test for sync functions
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int old;
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int val = 1;
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char valc = 1;
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_Bool valb = 0;
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unsigned int uval = 1;
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int cmp = 0;
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int* ptrval;
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old = __sync_fetch_and_add(&val, 1);
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// CHECK: atomicrmw add ptr %val, i32 1 seq_cst, align 4
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old = __sync_fetch_and_sub(&valc, 2);
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// CHECK: atomicrmw sub ptr %valc, i8 2 seq_cst, align 1
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old = __sync_fetch_and_min(&val, 3);
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// CHECK: atomicrmw min ptr %val, i32 3 seq_cst, align 4
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old = __sync_fetch_and_max(&val, 4);
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// CHECK: atomicrmw max ptr %val, i32 4 seq_cst, align 4
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old = __sync_fetch_and_umin(&uval, 5u);
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// CHECK: atomicrmw umin ptr %uval, i32 5 seq_cst, align 4
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old = __sync_fetch_and_umax(&uval, 6u);
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// CHECK: atomicrmw umax ptr %uval, i32 6 seq_cst, align 4
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old = __sync_lock_test_and_set(&val, 7);
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// CHECK: atomicrmw xchg ptr %val, i32 7 seq_cst, align 4
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old = __sync_swap(&val, 8);
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// CHECK: atomicrmw xchg ptr %val, i32 8 seq_cst, align 4
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old = __sync_val_compare_and_swap(&val, 4, 1976);
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// CHECK: [[PAIR:%[a-z0-9_.]+]] = cmpxchg ptr %val, i32 4, i32 1976 seq_cst seq_cst, align 4
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// CHECK: extractvalue { i32, i1 } [[PAIR]], 0
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old = __sync_bool_compare_and_swap(&val, 4, 1976);
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// CHECK: [[PAIR:%[a-z0-9_.]+]] = cmpxchg ptr %val, i32 4, i32 1976 seq_cst seq_cst, align 4
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// CHECK: extractvalue { i32, i1 } [[PAIR]], 1
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old = __sync_fetch_and_and(&val, 0x9);
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// CHECK: atomicrmw and ptr %val, i32 9 seq_cst, align 4
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old = __sync_fetch_and_or(&val, 0xa);
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// CHECK: atomicrmw or ptr %val, i32 10 seq_cst, align 4
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old = __sync_fetch_and_xor(&val, 0xb);
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// CHECK: atomicrmw xor ptr %val, i32 11 seq_cst, align 4
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old = __sync_fetch_and_nand(&val, 0xc);
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// CHECK: atomicrmw nand ptr %val, i32 12 seq_cst, align 4
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old = __sync_add_and_fetch(&val, 1);
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// CHECK: atomicrmw add ptr %val, i32 1 seq_cst, align 4
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old = __sync_sub_and_fetch(&val, 2);
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// CHECK: atomicrmw sub ptr %val, i32 2 seq_cst, align 4
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old = __sync_and_and_fetch(&valc, 3);
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// CHECK: atomicrmw and ptr %valc, i8 3 seq_cst, align 1
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old = __sync_or_and_fetch(&valc, 4);
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// CHECK: atomicrmw or ptr %valc, i8 4 seq_cst, align 1
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old = __sync_xor_and_fetch(&valc, 5);
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// CHECK: atomicrmw xor ptr %valc, i8 5 seq_cst, align 1
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old = __sync_nand_and_fetch(&valc, 6);
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// CHECK: atomicrmw nand ptr %valc, i8 6 seq_cst, align 1
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__sync_val_compare_and_swap((void **)0, (void *)0, (void *)0);
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// X86: [[PAIR:%[a-z0-9_.]+]] = cmpxchg ptr null, i32 0, i32 0 seq_cst seq_cst, align 4
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// X86-NEXT: extractvalue { i32, i1 } [[PAIR]], 0
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// SYSTEMZ: [[PAIR:%[a-z0-9_.]+]] = cmpxchg ptr null, i64 0, i64 0 seq_cst seq_cst, align 8
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// SYSTEMZ-NEXT: extractvalue { i64, i1 } [[PAIR]], 0
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if ( __sync_val_compare_and_swap(&valb, 0, 1)) {
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// CHECK: [[PAIR:%[a-z0-9_.]+]] = cmpxchg ptr %valb, i8 0, i8 1 seq_cst seq_cst, align 1
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// CHECK: [[VAL:%[a-z0-9_.]+]] = extractvalue { i8, i1 } [[PAIR]], 0
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// CHECK: trunc i8 [[VAL]] to i1
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old = 42;
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}
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__sync_bool_compare_and_swap((void **)0, (void *)0, (void *)0);
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// X86: cmpxchg ptr null, i32 0, i32 0 seq_cst seq_cst, align 4
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// SYSTEMZ: cmpxchg ptr null, i64 0, i64 0 seq_cst seq_cst, align 8
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__sync_lock_release(&val);
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// CHECK: store atomic i32 0, {{.*}} release, align 4
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__sync_lock_release(&ptrval);
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// X86: store atomic i32 0, {{.*}} release, align 4
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// SYSTEMZ: store atomic i64 0, {{.*}} release, align 8
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__sync_synchronize ();
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// CHECK: fence seq_cst
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return old;
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}
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// CHECK: @release_return
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void release_return(int *lock) {
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// Ensure this is actually returning void all the way through.
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return __sync_lock_release(lock);
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// CHECK: store atomic {{.*}} release, align 4
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}
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// Atomics with address spaces.
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// CHECK: @addrspace
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void addrspace(int __attribute__((address_space(256))) * P) {
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__sync_bool_compare_and_swap(P, 0, 1);
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// CHECK: cmpxchg ptr addrspace(256){{.*}}, i32 0, i32 1 seq_cst seq_cst, align 4
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__sync_val_compare_and_swap(P, 0, 1);
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// CHECK: cmpxchg ptr addrspace(256){{.*}}, i32 0, i32 1 seq_cst seq_cst, align 4
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__sync_xor_and_fetch(P, 123);
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// CHECK: atomicrmw xor ptr addrspace(256){{.*}}, i32 123 seq_cst, align 4
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}
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// Ensure that global initialization of atomics is correct.
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static _Atomic(int *) glob_pointer = (void *)0;
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static _Atomic(int *) glob_pointer_from_int = 0;
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_Atomic(int *) nonstatic_glob_pointer_from_int = 0LL;
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static _Atomic int glob_int = 0;
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static _Atomic float glob_flt = 0.0f;
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static _Atomic double glob_dbl = 0.0f;
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static _Atomic long double glob_longdbl = 0.0f;
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void force_global_uses(void) {
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// X86: %atomic-temp = alloca x86_fp80, align 16
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(void)glob_pointer;
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// CHECK: load atomic ptr, ptr @[[GLOB_POINTER]] seq_cst
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(void)glob_pointer_from_int;
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// CHECK-NEXT: load atomic ptr, ptr @[[GLOB_POINTER_FROM_INT]] seq_cst
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(void)nonstatic_glob_pointer_from_int;
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// CHECK-NEXT: load atomic ptr, ptr @[[NONSTATIC_GLOB_POINTER_FROM_INT]] seq_cst
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(void)glob_int;
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// CHECK-NEXT: load atomic i32, ptr @[[GLOB_INT]] seq_cst
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(void)glob_flt;
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// CHECK-NEXT: load atomic float, ptr @[[GLOB_FLT]] seq_cst
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(void)glob_dbl;
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// CHECK-NEXT: load atomic double, ptr @[[GLOB_DBL]] seq_cst
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(void)glob_longdbl;
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// X86: call void @__atomic_load(i32 noundef 16, ptr noundef @glob_longdbl, ptr noundef %atomic-temp
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// X86-NEXT: %0 = load x86_fp80, ptr %atomic-temp, align 16
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// SYSTEMZ: load atomic fp128, ptr @[[GLOB_LONGDBL]] seq_cst
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}
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