TMS320F28388D: Optimization Behavior with -O4 in TI C2000 Compiler

/opt/ti/ti-cgt-c2000_22.6.1.LTS/bin/cl2000 \
--issue_remarks --gen_opt_info=2 -v28 -ml -O4 -op=3 \
--c_src_interlist --auto_inline --verbose_diagnostics \
--advice:performance=all --opt_for_speed=5 \
--preproc_with_compile --keep_asm \
-I/opt/ti/ti-cgt-c2000_22.6.1.LTS/include \
main.cpp

/*
    MOVZ      AR6,AL                ; [CPU_ALU] |4|
    MOVL      XAR4,#_table$1        ; [CPU_ARAU] |6|
    SETC      SXM                   ; [CPU_ALU]
    MOVL      ACC,XAR4              ; [CPU_ALU] |6|
    ADD       ACC,AR6               ; [CPU_ALU] |6|
    MOVL      XAR4,ACC              ; [CPU_ALU] |6|
    MOV       AL,*+XAR4[0]          ; [CPU_ALU] |6|
    LRETR     ; [CPU_ALU]
*/
int foo(char a) {
    static const int table[] = { 1,2,3,4,5 };
    return table[a];
}

/*
ADDB      SP,#4                 ; [CPU_ARAU]
MOV       PL,#65012             ; [CPU_ALU] |2|
MOVZ      AR4,SP                ; [CPU_ALU] |8|
MOV       PH,#16180             ; [CPU_ALU] |2|
MOVL      ACC,XAR6              ; [CPU_ALU] |7|
MOVL      *-SP[4],P             ; [CPU_ALU] |2|
SUBB      XAR4,#4               ; [CPU_ARAU] |8|
MOV       PL,#65012             ; [CPU_ALU] |2|
MOV       PH,#16180             ; [CPU_ALU] |2|
MOVZ      AR5,AR4               ; [CPU_ALU] |8|
MOVL      *-SP[2],P             ; [CPU_ALU] |2|
B         $C$L1,EQ              ; [CPU_ALU] |8|
MOVL      XAR4,ACC              ; [CPU_ALU] |8|
MOVB      ACC,#4                ; [CPU_ALU] |8|
LCR       #_memcpy              ; [CPU_ALU] |8| << Whoooh!
SUBB      SP,#4                 ; [CPU_ARAU]
LRETR     ; [CPU_ALU]
*/
struct float2 {
    float2(float x, float y) : x(x), y(y) {}
    float x, y;
};

// Should be auto inlined (called once)
float2 read() { return float2(0.707f, 0.707f); }

float test() {
    float2 v = read();
    return v.x + v.y;
}