llvm-for-llvmta/tools/clang/test/Frontend/optimization-remark-analysis.c

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2022-04-25 13:02:35 +02:00
// RUN: %clang -O1 -fvectorize -target x86_64-unknown-unknown -emit-llvm -Rpass-analysis -S %s -o - 2>&1 | FileCheck %s --check-prefix=RPASS
// RUN: %clang -O1 -fvectorize -target x86_64-unknown-unknown -emit-llvm -S %s -o - 2>&1 | FileCheck %s
// RPASS: {{.*}}:7:8: remark: loop not vectorized: loop contains a switch statement
// CHECK-NOT: {{.*}}:7:8: remark: loop not vectorized: loop contains a switch statement
double foo(int N, int *Array) {
double v = 0.0;
#pragma clang loop vectorize(enable)
for (int i = 0; i < N; i++) {
switch(Array[i]) {
case 0: v += 1.0f; break;
case 1: v -= 0.5f; break;
case 2: v *= 2.0f; break;
default: v = 0.0f;
}
}
return v;
}