On Wed, Oct 2, 2024 at 3:48 PM Richard Sandiford
<richard.sandif...@arm.com> wrote:
>
> This patch tries to make check-function-bodies automatically
> choose between reading the regular assembly file and reading the
> LTO assembly file. There should only ever be one right answer,
> since check-function-bodies doesn't make sense on slim LTO output.
>
> Maybe this will turn out to be impossible to get right, but I'd like
> to try at least.
>
> Tested on aarch64-linux-gnu. OK to install?
OK.
> Richard
>
>
> gcc/testsuite/
> * lib/scanasm.exp (check-function-bodies): Look in ltrans0.ltrans.s
> if the test appears to be using LTO.
> ---
> gcc/testsuite/lib/scanasm.exp | 24 ++++++++++++++++--------
> 1 file changed, 16 insertions(+), 8 deletions(-)
>
> diff --git a/gcc/testsuite/lib/scanasm.exp b/gcc/testsuite/lib/scanasm.exp
> index 737eefc655e..26504deb0e6 100644
> --- a/gcc/testsuite/lib/scanasm.exp
> +++ b/gcc/testsuite/lib/scanasm.exp
> @@ -997,16 +997,17 @@ proc check-function-bodies { args } {
> error "too many arguments to check-function-bodies"
> }
>
> + upvar 2 dg-extra-tool-flags extra_tool_flags
> + set flags $extra_tool_flags
> +
> + global torture_current_flags
> + if { [info exists torture_current_flags] } {
> + append flags " " $torture_current_flags
> + }
> +
> if { [llength $args] >= 3 } {
> set required_flags [lindex $args 2]
>
> - upvar 2 dg-extra-tool-flags extra_tool_flags
> - set flags $extra_tool_flags
> -
> - global torture_current_flags
> - if { [info exists torture_current_flags] } {
> - append flags " " $torture_current_flags
> - }
> foreach required_flag $required_flags {
> switch -- $required_flag {
> target -
> @@ -1043,7 +1044,14 @@ proc check-function-bodies { args } {
>
> global srcdir
> set input_filename "$srcdir/$filename"
> - set output_filename "[file rootname [file tail $filename]].s"
> + set output_filename "[file rootname [file tail $filename]]"
> + if { [string match "* -flto *" " ${flags} "]
> + && ![string match "* -fno-use-linker-plugin *" " ${flags} "]
> + && ![string match "* -ffat-lto-objects *" " ${flags} "] } {
> + append output_filename ".ltrans0.ltrans.s"
> + } else {
> + append output_filename ".s"
> + }
>
> set prefix [lindex $args 0]
> set prefix_len [string length $prefix]
> --
> 2.25.1
>
