1 files changed, 333 insertions, 0 deletions
diff --git a/test/OpenMP/atomic_read_codegen.c b/test/OpenMP/atomic_read_codegen.c
new file mode 100644
index 000000000000..efeec0302d34
--- /dev/null
+++ b/test/OpenMP/atomic_read_codegen.c
@@ -0,0 +1,333 @@
+// RUN: %clang_cc1 -verify -triple x86_64-apple-darwin10 -fopenmp -x c -emit-llvm %s -o - | FileCheck %s
+// RUN: %clang_cc1 -fopenmp -x c -triple x86_64-apple-darwin10 -emit-pch -o %t %s
+// RUN: %clang_cc1 -fopenmp -x c -triple x86_64-apple-darwin10 -include-pch %t -verify %s -emit-llvm -o - | FileCheck %s
+// expected-no-diagnostics
+
+#ifndef HEADER
+#define HEADER
+
+_Bool bv, bx;
+char cv, cx;
+unsigned char ucv, ucx;
+short sv, sx;
+unsigned short usv, usx;
+int iv, ix;
+unsigned int uiv, uix;
+long lv, lx;
+unsigned long ulv, ulx;
+long long llv, llx;
+unsigned long long ullv, ullx;
+float fv, fx;
+double dv, dx;
+long double ldv, ldx;
+_Complex int civ, cix;
+_Complex float cfv, cfx;
+_Complex double cdv, cdx;
+
+typedef int int4 __attribute__((__vector_size__(16)));
+int4 int4x;
+
+struct BitFields {
+  int : 32;
+  int a : 31;
+} bfx;
+
+struct BitFields_packed {
+  int : 32;
+  int a : 31;
+} __attribute__ ((__packed__)) bfx_packed;
+
+struct BitFields2 {
+  int : 31;
+  int a : 1;
+} bfx2;
+
+struct BitFields2_packed {
+  int : 31;
+  int a : 1;
+} __attribute__ ((__packed__)) bfx2_packed;
+
+struct BitFields3 {
+  int : 11;
+  int a : 14;
+} bfx3;
+
+struct BitFields3_packed {
+  int : 11;
+  int a : 14;
+} __attribute__ ((__packed__)) bfx3_packed;
+
+struct BitFields4 {
+  short : 16;
+  int a: 1;
+  long b : 7;
+} bfx4;
+
+struct BitFields4_packed {
+  short : 16;
+  int a: 1;
+  long b : 7;
+} __attribute__ ((__packed__)) bfx4_packed;
+
+typedef float float2 __attribute__((ext_vector_type(2)));
+float2 float2x;
+
+register int rix __asm__("0");
+
+int main() {
+// CHECK: load atomic i8, i8*
+// CHECK: store i8
+#pragma omp atomic read
+  bv = bx;
+// CHECK: load atomic i8, i8*
+// CHECK: store i8
+#pragma omp atomic read
+  cv = cx;
+// CHECK: load atomic i8, i8*
+// CHECK: store i8
+#pragma omp atomic read
+  ucv = ucx;
+// CHECK: load atomic i16, i16*
+// CHECK: store i16
+#pragma omp atomic read
+  sv = sx;
+// CHECK: load atomic i16, i16*
+// CHECK: store i16
+#pragma omp atomic read
+  usv = usx;
+// CHECK: load atomic i32, i32*
+// CHECK: store i32
+#pragma omp atomic read
+  iv = ix;
+// CHECK: load atomic i32, i32*
+// CHECK: store i32
+#pragma omp atomic read
+  uiv = uix;
+// CHECK: load atomic i64, i64*
+// CHECK: store i64
+#pragma omp atomic read
+  lv = lx;
+// CHECK: load atomic i64, i64*
+// CHECK: store i64
+#pragma omp atomic read
+  ulv = ulx;
+// CHECK: load atomic i64, i64*
+// CHECK: store i64
+#pragma omp atomic read
+  llv = llx;
+// CHECK: load atomic i64, i64*
+// CHECK: store i64
+#pragma omp atomic read
+  ullv = ullx;
+// CHECK: load atomic i32, i32* bitcast (float*
+// CHECK: bitcast i32 {{.*}} to float
+// CHECK: store float
+#pragma omp atomic read
+  fv = fx;
+// CHECK: load atomic i64, i64* bitcast (double*
+// CHECK: bitcast i64 {{.*}} to double
+// CHECK: store double
+#pragma omp atomic read
+  dv = dx;
+// CHECK: [[LD:%.+]] = load atomic i128, i128* bitcast (x86_fp80*
+// CHECK: [[BITCAST:%.+]] = bitcast x86_fp80* [[LDTEMP:%.*]] to i128*
+// CHECK: store i128 [[LD]], i128* [[BITCAST]]
+// CHECK: [[LD:%.+]] = load x86_fp80, x86_fp80* [[LDTEMP]]
+// CHECK: store x86_fp80 [[LD]]
+#pragma omp atomic read
+  ldv = ldx;
+// CHECK: call{{.*}} void @__atomic_load(i64 8,
+// CHECK: store i32
+// CHECK: store i32
+#pragma omp atomic read
+  civ = cix;
+// CHECK: call{{.*}} void @__atomic_load(i64 8,
+// CHECK: store float
+// CHECK: store float
+#pragma omp atomic read
+  cfv = cfx;
+// CHECK: call{{.*}} void @__atomic_load(i64 16,
+// CHECK: call{{.*}} @__kmpc_flush(
+// CHECK: store double
+// CHECK: store double
+#pragma omp atomic seq_cst read
+  cdv = cdx;
+// CHECK: load atomic i64, i64*
+// CHECK: store i8
+#pragma omp atomic read
+  bv = ulx;
+// CHECK: load atomic i8, i8*
+// CHECK: store i8
+#pragma omp atomic read
+  cv = bx;
+// CHECK: load atomic i8, i8*
+// CHECK: call{{.*}} @__kmpc_flush(
+// CHECK: store i8
+#pragma omp atomic read, seq_cst
+  ucv = cx;
+// CHECK: load atomic i64, i64*
+// CHECK: store i16
+#pragma omp atomic read
+  sv = ulx;
+// CHECK: load atomic i64, i64*
+// CHECK: store i16
+#pragma omp atomic read
+  usv = lx;
+// CHECK: load atomic i32, i32*
+// CHECK: call{{.*}} @__kmpc_flush(
+// CHECK: store i32
+#pragma omp atomic seq_cst, read
+  iv = uix;
+// CHECK: load atomic i32, i32*
+// CHECK: store i32
+#pragma omp atomic read
+  uiv = ix;
+// CHECK: call{{.*}} void @__atomic_load(i64 8,
+// CHECK: store i64
+#pragma omp atomic read
+  lv = cix;
+// CHECK: load atomic i32, i32*
+// CHECK: store i64
+#pragma omp atomic read
+  ulv = fx;
+// CHECK: load atomic i64, i64*
+// CHECK: store i64
+#pragma omp atomic read
+  llv = dx;
+// CHECK: load atomic i128, i128*
+// CHECK: store i64
+#pragma omp atomic read
+  ullv = ldx;
+// CHECK: call{{.*}} void @__atomic_load(i64 8,
+// CHECK: store float
+#pragma omp atomic read
+  fv = cix;
+// CHECK: load atomic i16, i16*
+// CHECK: store double
+#pragma omp atomic read
+  dv = sx;
+// CHECK: load atomic i8, i8*
+// CHECK: store x86_fp80
+#pragma omp atomic read
+  ldv = bx;
+// CHECK: load atomic i8, i8*
+// CHECK: store i32
+// CHECK: store i32
+#pragma omp atomic read
+  civ = bx;
+// CHECK: load atomic i16, i16*
+// CHECK: store float
+// CHECK: store float
+#pragma omp atomic read
+  cfv = usx;
+// CHECK: load atomic i64, i64*
+// CHECK: store double
+// CHECK: store double
+#pragma omp atomic read
+  cdv = llx;
+// CHECK: [[I128VAL:%.+]] = load atomic i128, i128* bitcast (<4 x i32>* @{{.+}} to i128*) monotonic
+// CHECK: [[I128PTR:%.+]] = bitcast <4 x i32>* [[LDTEMP:%.+]] to i128*
+// CHECK: store i128 [[I128VAL]], i128* [[I128PTR]]
+// CHECK: [[LD:%.+]] = load <4 x i32>, <4 x i32>* [[LDTEMP]]
+// CHECK: extractelement <4 x i32> [[LD]]
+// CHECK: store i8
+#pragma omp atomic read
+  bv = int4x[0];
+// CHECK: [[LD:%.+]] = load atomic i32, i32* bitcast (i8* getelementptr (i8, i8* bitcast (%{{.+}}* @{{.+}} to i8*), i64 4) to i32*) monotonic
+// CHECK: store i32 [[LD]], i32* [[LDTEMP:%.+]]
+// CHECK: [[LD:%.+]] = load i32, i32* [[LDTEMP]]
+// CHECK: [[SHL:%.+]] = shl i32 [[LD]], 1
+// CHECK: ashr i32 [[SHL]], 1
+// CHECK: store x86_fp80
+#pragma omp atomic read
+  ldv = bfx.a;
+// CHECK: [[LDTEMP_VOID_PTR:%.+]] = bitcast i32* [[LDTEMP:%.+]] to i8*
+// CHECK: call void @__atomic_load(i64 4, i8* getelementptr (i8, i8* bitcast (%struct.BitFields_packed* @bfx_packed to i8*), i64 4), i8* [[LDTEMP_VOID_PTR]], i32 0)
+// CHECK: [[LD:%.+]] = load i32, i32* [[LDTEMP]]
+// CHECK: [[SHL:%.+]] = shl i32 [[LD]], 1
+// CHECK: ashr i32 [[SHL]], 1
+// CHECK: store x86_fp80
+#pragma omp atomic read
+  ldv = bfx_packed.a;
+// CHECK: [[LD:%.+]] = load atomic i32, i32* getelementptr inbounds (%struct.BitFields2, %struct.BitFields2* @bfx2, i32 0, i32 0) monotonic
+// CHECK: store i32 [[LD]], i32* [[LDTEMP:%.+]]
+// CHECK: [[LD:%.+]] = load i32, i32* [[LDTEMP]]
+// CHECK: ashr i32 [[LD]], 31
+// CHECK: store x86_fp80
+#pragma omp atomic read
+  ldv = bfx2.a;
+// CHECK: [[LD:%.+]] = load atomic i8, i8* getelementptr (i8, i8* bitcast (%struct.BitFields2_packed* @bfx2_packed to i8*), i64 3) monotonic
+// CHECK: store i8 [[LD]], i8* [[LDTEMP:%.+]]
+// CHECK: [[LD:%.+]] = load i8, i8* [[LDTEMP]]
+// CHECK: ashr i8 [[LD]], 7
+// CHECK: store x86_fp80
+#pragma omp atomic read
+  ldv = bfx2_packed.a;
+// CHECK: [[LD:%.+]] = load atomic i32, i32* getelementptr inbounds (%struct.BitFields3, %struct.BitFields3* @bfx3, i32 0, i32 0) monotonic
+// CHECK: store i32 [[LD]], i32* [[LDTEMP:%.+]]
+// CHECK: [[LD:%.+]] = load i32, i32* [[LDTEMP]]
+// CHECK: [[SHL:%.+]] = shl i32 [[LD]], 7
+// CHECK: ashr i32 [[SHL]], 18
+// CHECK: store x86_fp80
+#pragma omp atomic read
+  ldv = bfx3.a;
+// CHECK: [[LDTEMP_VOID_PTR:%.+]] = bitcast i24* [[LDTEMP:%.+]] to i8*
+// CHECK: call void @__atomic_load(i64 3, i8* getelementptr (i8, i8* bitcast (%struct.BitFields3_packed* @bfx3_packed to i8*), i64 1), i8* [[LDTEMP_VOID_PTR]], i32 0)
+// CHECK: [[LD:%.+]] = load i24, i24* [[LDTEMP]]
+// CHECK: [[SHL:%.+]] = shl i24 [[LD]], 7
+// CHECK: [[ASHR:%.+]] = ashr i24 [[SHL]], 10
+// CHECK: sext i24 [[ASHR]] to i32
+// CHECK: store x86_fp80
+#pragma omp atomic read
+  ldv = bfx3_packed.a;
+// CHECK: [[LD:%.+]] = load atomic i64, i64* bitcast (%struct.BitFields4* @bfx4 to i64*) monotonic
+// CHECK: store i64 [[LD]], i64* [[LDTEMP:%.+]]
+// CHECK: [[LD:%.+]] = load i64, i64* [[LDTEMP]]
+// CHECK: [[SHL:%.+]] = shl i64 [[LD]], 47
+// CHECK: [[ASHR:%.+]] = ashr i64 [[SHL]], 63
+// CHECK: trunc i64 [[ASHR]] to i32
+// CHECK: store x86_fp80
+#pragma omp atomic read
+  ldv = bfx4.a;
+// CHECK: [[LD:%.+]] = load atomic i8, i8* getelementptr inbounds (%struct.BitFields4_packed, %struct.BitFields4_packed* @bfx4_packed, i32 0, i32 0, i64 2) monotonic
+// CHECK: store i8 [[LD]], i8* [[LDTEMP:%.+]]
+// CHECK: [[LD:%.+]] = load i8, i8* [[LDTEMP]]
+// CHECK: [[SHL:%.+]] = shl i8 [[LD]], 7
+// CHECK: [[ASHR:%.+]] = ashr i8 [[SHL]], 7
+// CHECK: sext i8 [[ASHR]] to i32
+// CHECK: store x86_fp80
+#pragma omp atomic read
+  ldv = bfx4_packed.a;
+// CHECK: [[LD:%.+]] = load atomic i64, i64* bitcast (%struct.BitFields4* @bfx4 to i64*) monotonic
+// CHECK: store i64 [[LD]], i64* [[LDTEMP:%.+]]
+// CHECK: [[LD:%.+]] = load i64, i64* [[LDTEMP]]
+// CHECK: [[SHL:%.+]] = shl i64 [[LD]], 40
+// CHECK: [[ASHR:%.+]] = ashr i64 [[SHL]], 57
+// CHECK: store x86_fp80
+#pragma omp atomic read
+  ldv = bfx4.b;
+// CHECK: [[LD:%.+]] = load atomic i8, i8* getelementptr inbounds (%struct.BitFields4_packed, %struct.BitFields4_packed* @bfx4_packed, i32 0, i32 0, i64 2) monotonic
+// CHECK: store i8 [[LD]], i8* [[LDTEMP:%.+]]
+// CHECK: [[LD:%.+]] = load i8, i8* [[LDTEMP]]
+// CHECK: [[ASHR:%.+]] = ashr i8 [[LD]], 1
+// CHECK: sext i8 [[ASHR]] to i64
+// CHECK: store x86_fp80
+#pragma omp atomic read
+  ldv = bfx4_packed.b;
+// CHECK: [[LD:%.+]] = load atomic i64, i64* bitcast (<2 x float>* @{{.+}} to i64*) monotonic
+// CHECK: [[BITCAST:%.+]] = bitcast <2 x float>* [[LDTEMP:%.+]] to i64*
+// CHECK: store i64 [[LD]], i64* [[BITCAST]]
+// CHECK: [[LD:%.+]] = load <2 x float>, <2 x float>* [[LDTEMP]]
+// CHECK: extractelement <2 x float> [[LD]]
+// CHECK: store i64
+#pragma omp atomic read
+  ulv = float2x.x;
+// CHECK: call{{.*}} i{{[0-9]+}} @llvm.read_register
+// CHECK: call{{.*}} @__kmpc_flush(
+// CHECK: store double
+#pragma omp atomic read seq_cst
+  dv = rix;
+  return 0;
+}
+
+#endif