Hardware support for integer division not enabled by default for Cortex R4F
Bug #1880303 reported by
Manuel Mohr
This bug affects 1 person
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
GNU Arm Embedded Toolchain |
New
|
Undecided
|
Unassigned |
Bug Description
GCC's standard CPU configuration for the Cortex R4F does not enable hardware support for integer division although ARM's Cortex R Programmer's Guide clearly states that the R4F does indeed have hardware support for integer division.
For the Cortex R5, integer division is enabled by default.
Quoting from gcc/arm/
begin cpu cortex-r4f
architecture armv7-r+fp
end cpu cortex-r4f
begin cpu cortex-r5
architecture armv7-r+idiv+fp
end cpu cortex-r5
Is there a special reason for this behavior?
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