79 lines · c
1// RUN: %clang_cc1 -triple aarch64-linux-gnu -target-feature +sve -fopenmp -x c -emit-llvm %s -o - -femit-all-decls | FileCheck %s2// RUN: %clang_cc1 -triple aarch64-linux-gnu -target-feature +sve -fopenmp-simd -x c -emit-llvm %s -o - -femit-all-decls | FileCheck %s3 4// REQUIRES: aarch64-registered-target5// Note: -fopemp and -fopenmp-simd behavior are expected to be the same.6 7// This test checks the values of Widest Data Size (WDS), as defined8// in https://github.com/ARM-software/abi-aa/tree/main/vfabia649//10// WDS is used to check the accepted values <N> of `simdlen(<N>)` when11// targeting fixed-length SVE vector function names. The values of12// `<N>` that are accepted are such that for X = WDS * <N> * 8,13// 128-bit <= X <= 2048-bit and X is a multiple of 128-bit.14 15#pragma omp declare simd simdlen(8)16#pragma omp declare simd simdlen(16)17#pragma omp declare simd simdlen(256)18#pragma omp declare simd simdlen(272)19char WDS_is_sizeof_char(char in);20// WDS = 1, simdlen(8) and simdlen(272) are not generated.21// CHECK-DAG: _ZGVsM16v_WDS_is_sizeof_char22// CHECK-DAG: _ZGVsM256v_WDS_is_sizeof_char23// CHECK-NOT: _ZGV{{.*}}_WDS_is_sizeof_char24 25#pragma omp declare simd simdlen(4)26#pragma omp declare simd simdlen(8)27#pragma omp declare simd simdlen(128)28#pragma omp declare simd simdlen(136)29char WDS_is_sizeof_short(short in);30// WDS = 2, simdlen(4) and simdlen(136) are not generated.31// CHECK-DAG: _ZGVsM8v_WDS_is_sizeof_short32// CHECK-DAG: _ZGVsM128v_WDS_is_sizeof_short33// CHECK-NOT: _ZGV{{.*}}_WDS_is_sizeof_short34 35#pragma omp declare simd linear(sin) notinbranch simdlen(2)36#pragma omp declare simd linear(sin) notinbranch simdlen(4)37#pragma omp declare simd linear(sin) notinbranch simdlen(64)38#pragma omp declare simd linear(sin) notinbranch simdlen(68)39void WDS_is_sizeof_float_pointee(float in, float *sin);40// WDS = 4, simdlen(2) and simdlen(68) are not generated.41// CHECK-DAG: _ZGVsM4vl4_WDS_is_sizeof_float_pointee42// CHECK-DAG: _ZGVsM64vl4_WDS_is_sizeof_float_pointee43// CHECK-NOT: _ZGV{{.*}}_WDS_is_sizeof_float_pointee44 45#pragma omp declare simd linear(sin) notinbranch simdlen(2)46#pragma omp declare simd linear(sin) notinbranch simdlen(4)47#pragma omp declare simd linear(sin) notinbranch simdlen(32)48#pragma omp declare simd linear(sin) notinbranch simdlen(34)49void WDS_is_sizeof_double_pointee(float in, double *sin);50// WDS = 8 because of the linear clause, simdlen(34) is not generated.51// CHECK-DAG: _ZGVsM2vl8_WDS_is_sizeof_double_pointee52// CHECK-DAG: _ZGVsM4vl8_WDS_is_sizeof_double_pointee53// CHECK-DAG: _ZGVsM32vl8_WDS_is_sizeof_double_pointee54// CHECK-NOT: _ZGV{{.*}}_WDS_is_sizeof_double_pointee55 56#pragma omp declare simd simdlen(2)57#pragma omp declare simd simdlen(4)58#pragma omp declare simd simdlen(32)59#pragma omp declare simd simdlen(34)60double WDS_is_sizeof_double(double in);61// WDS = 8, simdlen(34) is not generated.62// CHECK-DAG: _ZGVsM2v_WDS_is_sizeof_double63// CHECK-DAG: _ZGVsM4v_WDS_is_sizeof_double64// CHECK-DAG: _ZGVsM32v_WDS_is_sizeof_double65// CHECK-NOT: _ZGV{{.*}}_WDS_is_sizeof_double66 67static char C;68static short S;69static float F;70static double D;71 72void do_something() {73 C = WDS_is_sizeof_char(C);74 C = WDS_is_sizeof_short(S);75 WDS_is_sizeof_float_pointee(F, &F);76 WDS_is_sizeof_double_pointee(F, &D);77 D = WDS_is_sizeof_double(D);78}79