// genericLambda.cpp — Phase 2.7 cxxSmoke check 2.
//
// Exercises a C++14 generic lambda (auto parameter) that captures a local
// i32 accumulator by reference.  The i32 path is the path most recently
// touched by codegen work (most likely place to regress).
//
// The lambda is invoked twice: once with an i16 argument, once with an
// i32 argument.  After both calls the accumulator holds the sum, which we
// split into two u16 markers.
//
//   $025000 = lo16 of acc  (0x100 + 0x12345 = 0x12445; lo = 0x2445)
//   $025002 = hi16 of acc  (hi = 0x0001)
//   $025004 = 0x0099       success marker
#include <stdint.h>


int main(void) {
    volatile int32_t acc = 0;
    auto add = [&](auto x) {
        acc += (int32_t)x;
    };
    add((int16_t)0x100);
    add((int32_t)0x12345);
    uint32_t v = (uint32_t)acc;
    *(volatile uint16_t *)0x025000UL = (uint16_t)(v & 0xFFFFu);
    *(volatile uint16_t *)0x025002UL = (uint16_t)((v >> 16) & 0xFFFFu);
    *(volatile uint16_t *)0x025004UL = 0x0099;
    return 0;
}