When using `check-function-bodies`, the subroutine `parse_function_bodies` uses the `fluff` regexp to remove uninteresting assembly lines.
Arm targets generate assembly with some lines prefixed by `@`, these lines are left by this process. As an example of some lines prefixed by `@': the assembly output from the `stacktest1` function in "bfloat16_simd_3_1.c" is: .align 2 .global stacktest1 .arch armv8.2-a .syntax unified .arm .fpu neon-fp-armv8 .type stacktest1, %function stacktest1: @ args = 0, pretend = 0, frame = 8 @ frame_needed = 0, uses_anonymous_args = 0 @ link register save eliminated. sub sp, sp, #8 add r3, sp, #6 vst1.16 {d0[0]}, [r3] vld1.16 {d0[0]}, [r3] add sp, sp, #8 @ sp needed bx lr .size stacktest1, .-stacktest1 It seems that previous uses of `check-function-bodies` in the arm backend have avoided problems with such lines since they use the `...` regexp in each place such fluff occurs. I'm currently writing a patch that I'd like to match the entire function body, so I'd like to remove such `@` lines automatically. gcc/testsuite/ChangeLog: 2020-03-10 Matthew Malcomson <matthew.malcom...@arm.com> * lib/scanasm.exp (parse_function_bodies): Lines starting with '@' also counted as fluff. ############### Attachment also inlined for ease of reply ############### diff --git a/gcc/testsuite/lib/scanasm.exp b/gcc/testsuite/lib/scanasm.exp index 5ca58d4042027683da12bc2a1d161195cd6439e7..f7d27735112f8edd8a39a326020c3d08dd36e765 100644 --- a/gcc/testsuite/lib/scanasm.exp +++ b/gcc/testsuite/lib/scanasm.exp @@ -569,7 +569,7 @@ proc parse_function_bodies { filename result } { set terminator {^\s*\.size} # Regexp for lines that aren't interesting. - set fluff {^\s*(?:\.|//)} + set fluff {^\s*(?:\.|//|@)} set fd [open $filename r] set in_function 0
diff --git a/gcc/testsuite/lib/scanasm.exp b/gcc/testsuite/lib/scanasm.exp index 5ca58d4042027683da12bc2a1d161195cd6439e7..f7d27735112f8edd8a39a326020c3d08dd36e765 100644 --- a/gcc/testsuite/lib/scanasm.exp +++ b/gcc/testsuite/lib/scanasm.exp @@ -569,7 +569,7 @@ proc parse_function_bodies { filename result } { set terminator {^\s*\.size} # Regexp for lines that aren't interesting. - set fluff {^\s*(?:\.|//)} + set fluff {^\s*(?:\.|//|@)} set fd [open $filename r] set in_function 0