53 lines · c
1// REQUIRES: hexagon-registered-target2// RUN: %clang_cc1 -emit-llvm -O2 -o - -triple hexagon-unknown-elf -target-cpu hexagonv60 %s | FileCheck %s3 4// The return value should return the value in A[1].5// Check that the HexagonBuiltinExpr doesn't evaluate &(*ptr++) twice. If so,6// the return value will be the value in A[2]7// CHECK: @brev_ptr_inc8// CHECK-DAG: llvm.hexagon.L2.loadri.pbr9// CHECK-DAG: getelementptr inbounds nuw i8, {{.*}}i32 410// CHECK-NOT: getelementptr inbounds nuw i8, {{.*}}i32 811// CHECK-NOT: getelementptr inbounds nuw i8, {{.*}}i32 412int brev_ptr_inc(int A[], int B[]) {13 int *p0 = &B[0];14 int *p1 = &A[0];15 __builtin_brev_ldw(p0, &*p1++, 8);16 return (*p1);17}18 19// The return value should return the value in A[0].20// CHECK: @brev_ptr_dec21// CHECK: llvm.hexagon.L2.loadri.pbr22// CHECK: [[RET:%[0-9]+]] = load{{.*}}%A23// CHECK: ret{{.*}}[[RET]]24int brev_ptr_dec(int A[], int B[]) {25 int *p0 = &B[0];26 int *p1 = &A[1];27 __builtin_brev_ldw(p0, &*p1--, 8);28 return (*p1);29}30 31// The store in bitcode needs to be of width correspondng to 16-bit.32// CHECK: @brev_ptr_half33// CHECK: llvm.hexagon.L2.loadrh.pbr34// CHECK: store{{.*}}i16{{.*}}ptr35short int brev_ptr_half(short int A[], short int B[]) {36 short int *p0 = &B[0];37 short int *p1 = &A[0];38 __builtin_brev_ldh(p0, &*p1++, 8);39 return (*p1);40}41 42// The store in bitcode needs to be of width correspondng to 8-bit.43// CHECK: @brev_ptr_byte44// CHECK: llvm.hexagon.L2.loadrub.pbr45// CHECK: store{{.*}}i8{{.*}}ptr46unsigned char brev_ptr_byte(unsigned char A[], unsigned char B[]) {47 unsigned char *p0 = &B[0];48 unsigned char *p1 = &A[0];49 __builtin_brev_ldub(p0, &*p1++, 8);50 return (*p1);51}52 53