| ID |
Summary |
State |
Reported In Release |
Target Release |
Workaround |
Release Notes |
| CODEGEN-1703 |
Designated initializer plus struct hack hangs compiler |
Planned |
C2000_15.12.0.LTS, C2000_15.9.0.STS |
C2000_15.12.4.LTS |
|
|
| CODEGEN-1671 |
Arrays of Byte Peripherals or types aligned larger than their size should generate error |
Planned |
C2000_15.12.0.LTS |
C2000_15.12.4.LTS |
Do not attempt to create an array of byte peripheral objects. |
The C language guarantees that the size of an array is equal to the size of each element times the number of elements. Because we double the alignment of byte peripheral data types but do not change the size, this does not hold true. There would be padding in the array, which is not allowed by the standard.
Underneath the hood, we use the aligned GCC attribute to change the alignment for byte peripherals. On GCC, if you try to make an array of elements whose alignment is larger than its size (see example code below), you get the following error:
"9:1: error: alignment of array elements is greater than element size"
However, our parser doesn’t generate an error. Instead, it just reduces the alignment of the element size silently and makes an array.
We need to generate an error and document that this is not allowed, both for byte peripherals and the aligned GCC attribute. |
| CODEGEN-1667 |
Assignment to 32-bit byte peripheral from 64-bit cast to 32-bit value causes internal error |
Fixed |
C2000_15.12.0.LTS |
C2000_15.12.4.LTS |
Saving the cast value to a 32-bit temp and then assigning to the 32-bit byte peripheral will work at optimization settings of 0 and off. |
If a 64-bit value is cast to a 32-bit value and then assigned to a 32-bit byte peripheral type, an internal error occurs. |
| CODEGEN-1662 |
Optimizer incorrectly detects __fmin and __fmax idioms |
Fixed |
C2000_15.12.0.LTS |
C2000_15.12.4.LTS |
If you want floating-point absolute value, use fabs. However, there are other ways this bug could be triggered that have no practical workaround other than to use -Ooff |
|
| CODEGEN-1640 |
MISRA 19.1 misreported: #include statements should only be preceded by other preprocessor directives |
Planned |
C2000_15.12.0.LTS, C2000_15.9.0.STS |
C2000_15.12.4.LTS |
No practical workaround |
|
| CODEGEN-1634 |
MISRA 7.1 misreported: octal tokens in token paste |
Planned |
C2000_15.12.0.LTS, C2000_15.9.0.STS |
C2000_15.12.4.LTS |
No practical workaround |
|
| CODEGEN-1632 |
MISRA 15.2 misreported: switch clause unconditional break |
Planned |
C2000_15.12.0.LTS, C2000_15.9.0.STS |
C2000_15.12.4.LTS |
Put an explicit break at the end of the compound statement |
|
| CODEGEN-1534 |
Assembler mishandles SUBF32||MOV32 UNCF |
Fixed |
C2000_15.12.0.LTS, C2000_15.9.0.STS |
C2000_15.12.4.LTS |
As a workaround, take off the UNCF operand and the assembler handles the instruction correctly. |
|
| CODEGEN-1510 |
Assembler incorrectly issues warning on large constant used with MOVI32 instruction |
Fixed |
C2000_15.12.1.LTS |
C2000_15.12.4.LTS |
|
|
| SDSCM00052895 |
C28x --disable_dp_load_opt does not disable blocking for .ebss |
Fixed |
C2000_15.12.2.LTS |
C2000_15.12.4.LTS |
Put data in user-defined section and use --disable_dp_load_opt to prevent blocking. |
The C28x compiler blocks .ebss by default. --disable_dp_load_opt disables
blocking for user-defined sections. However, for .ebss the flag only disables
DP-load optimization but did not disable blocking. |
| CODEGEN-1420 |
Compiler mistakenly overwrites upper 32-bits to 0 by using MOVZ instruction to compute var32 |= 0x20 |
Fixed |
C2000_15.12.0.LTS |
C2000_15.12.4.LTS |
|
Fixed an issue where the compiler would issue a MOVZ instruction that zeroes the upper bits of an XAR register when those upper bits are needed for a future instruction. |
| CODEGEN-1418 |
64-bit bitwise op on enum gives INTERNAL ERROR: no match for ASG |
Fixed |
C2000_15.12.2.LTS, C2000_15.12.3.LTS, C2000_15.12.0.LTS, C2000_15.12.1.LTS, C2000_15.9.0.STS |
C2000_15.12.4.LTS |
Add compiler option -mf3 or higher (--opt_for_speed=3) |
|
| CODEGEN-1333 |
Structure assignment causes compiler to fail with INTERNAL ERROR: Decomposition error |
Fixed |
C2000_15.12.3.LTS |
C2000_15.12.4.LTS |
Replace struct assignments involving packed structures with a memcpy() call to copy the contents of the RHS of the struct assign to the LHS. |
|
| SDSCM00052894 |
CLA does not correctly handle certain pragmas like UNROLL which take an integer argument |
Fixed |
C2000_15.12.1.LTS |
C2000_15.12.3.LTS |
None |
|
| SDSCM00052881 |
unsigned array index not trucated as it should be |
Fixed |
C2000_15.12.0.LTS |
C2000_15.12.3.LTS |
Disable the optimizer with -Ooff |
|
| SDSCM00052873 |
Mishandled condition codes set by CLA intrinsics __mmaxf32 and __mminf32 |
Fixed |
C2000_15.12.0.LTS |
C2000_15.12.3.LTS |
|
|
| SDSCM00052833 |
Linker INTERNAL ERROR with object files with DWARF information compiled by IAR compiler |
Fixed |
C2000_15.12.0.LTS |
C2000_15.12.3.LTS |
Add option --compress_dwarf=off |
|
| SDSCM00052805 |
Decomposition error on while(*ptr++) where ptr points to volatile |
Fixed |
C2000_15.12.0.LTS |
C2000_15.12.2.LTS |
No workaround. |
|
| SDSCM00052774 |
Using __IQsat with destination same as one input leads to bad code |
Fixed |
C2000_15.12.0.LTS |
C2000_15.12.2.LTS |
No practical workaround |
|
| SDSCM00052737 |
Compiler reorders MOVDL or MOVD32 instruction with an instruction which reads the delayed memory |
Fixed |
C2000_15.12.0.LTS |
C2000_15.12.2.LTS |
None. |
|
| SDSCM00052723 |
Compiler seg faults with use of --opt_level=4 |
Fixed |
C2000_15.12.0.LTS |
C2000_15.12.1.LTS |
Use optimization level 3 or below. |
|
| SDSCM00052699 |
Compiler discards write to a volatile local struct member |
Fixed |
C2000_15.12.0.LTS |
C2000_15.12.2.LTS |
No workaround. |
|
| SDSCM00051406 |
Bool Support on CLA Compiler as part of STDBOOL.h |
Fixed |
|
C2000_15.9.0.STS |
|
|
| SDSCM00051315 |
The type _Bool is illegal by default only for CLA code |
Fixed |
|
C2000_15.9.0.STS |
Add the option --c99 |
|
| SDSCM00050005 |
Compiler mistakenly issues MISRA diagnostic 12.9 for a float point type |
Fixed |
C2000_15.12.0.LTS |
C2000_15.12.3.LTS |
|
|
| SDSCM00039432 |
Must interrupt-protect RB restore in low-prority interrupt handler |
Fixed |
C2000_15.12.0.LTS |
C2000_15.12.2.LTS |
At the end of every low-priority interrupt handler function which may have enabled interrupts (possibly during a callee), add the intrinsic __disable_interrupts. |
|
| SDSCM00038327 |
ARM RTS libraries expose enumerations across ABI boundaries, but are marked as having no visible enumerations |
Fixed |
|
C2000_15.12.0.LTS |
When using C++ RTS functions, use --enum_type=packed, or rebuild the RTS
library with the --enum_type=int option. |
|
