On Fri, 20 Jul 2012 17:24:36 +0100 Richard Earnshaw <rearn...@arm.com> wrote:
> On 20/07/12 11:35, Julian Brown wrote: > > Hi, > > > > On several architectures, the test > > gcc.c-torture/execute/20101011-1.c tests the raising of a signal > > when a division by zero occurs, but at present the test is simply > > skipped on ARM. We can make the test slightly more useful by using > > the EABI-provided ability to define a division-by-zero handling > > function which raises SIGFPE -- thus mimicking the behaviour of > > other targets, and allowing us to run the test as intended. > > > > If the target has hardware integer division instructions, the test > > is still skipped. > > > > The new test passes for a bare-metal config. OK to apply? > > > > Which permutations (CPU, ARM, Thumb) did you test? > > R. On mainline, merely the defaults for an arm-none-eabi toolchain, i.e. armv4t, -marm and -mthumb. On our internal branches (where a version of the patch has been present for some time), a much wider set of CPUs, including Cortex-M's and so forth with hardware multiplication instructions. (The list is approximately: ARMv4 ARM & Thumb, ARMv5te ARM mode with & without VFP, various ARMv7-A configs including ARM & Thumb-2 mode, Cortex-M3 & VFP-enabled Cortex-M4.) Julian
