Regressions under Intel SDE on native/master at commit r14-4836 vs commit r14-4830 on Linux/x86_64

Regressions under Intel SDE on native/master at commit r14-4836 vs commit r14-4830 on Linux/x86_64

[H. J. Lu]

New failures:
FAIL: gcc.target/i386/eh_return-1.c scan-assembler-times vmovdqu[ \\t]+[^\n]*%ymm 4
FAIL: gcc.target/i386/eh_return-1.c scan-assembler-times vmovdqu[ \\t]+[^\n]*%ymm 4
FAIL: gcc.target/i386/pieces-memcmp-2.c scan-assembler-times vptest[ \\t]*%xmm 2
FAIL: gcc.target/i386/pieces-memcpy-10.c scan-assembler-times vmovdqu[ \\t]+[^\n]*%xmm 4
FAIL: gcc.target/i386/pieces-memcpy-11.c scan-assembler-times movdqu[ \\t]+[^\n]*%xmm 4
FAIL: gcc.target/i386/pieces-memcpy-11.c scan-assembler-times movups[ \\t]+[^\n]*%xmm 4
FAIL: gcc.target/i386/pieces-memcpy-12.c scan-assembler-times vmovdqu[ \\t]+[^\n]*%ymm 4
FAIL: gcc.target/i386/pieces-memcpy-12.c scan-assembler-times vmovdqu[ \\t]+[^\n]*%ymm 4
FAIL: gcc.target/i386/pieces-memcpy-13.c scan-assembler-times vmovdqu64[ \\t]+[^\n]*%zmm 2
FAIL: gcc.target/i386/pieces-memcpy-13.c scan-assembler-times vmovdqu64[ \\t]+[^\n]*%zmm 2
FAIL: gcc.target/i386/pieces-memcpy-14.c scan-assembler-times movdqu[ \\t]+[^\n]*%xmm 2
FAIL: gcc.target/i386/pieces-memcpy-14.c scan-assembler-times movups[ \\t]+[^\n]*%xmm 2
FAIL: gcc.target/i386/pieces-memcpy-15.c scan-assembler-times vmovdqu[ \\t]+[^\n]*%ymm 2
FAIL: gcc.target/i386/pieces-memcpy-15.c scan-assembler-times vmovdqu[ \\t]+[^\n]*%ymm 2
FAIL: gcc.target/i386/pieces-memcpy-16.c scan-assembler-times vmovdqu[ \\t]+[^\n]*%ymm 2
FAIL: gcc.target/i386/pieces-memcpy-16.c scan-assembler-times vmovdqu[ \\t]+[^\n]*%ymm 2
FAIL: gcc.target/i386/pieces-memcpy-17.c scan-assembler-times vmovdqu64[ \\t]+[^\n]*%zmm 2
FAIL: gcc.target/i386/pieces-memcpy-17.c scan-assembler-times vmovdqu64[ \\t]+[^\n]*%zmm 2
FAIL: gcc.target/i386/pieces-memcpy-18.c scan-assembler-times vmovdqu64[ \\t]+[^\n]*%zmm 2
FAIL: gcc.target/i386/pieces-memcpy-18.c scan-assembler-times vmovdqu64[ \\t]+[^\n]*%zmm 2
FAIL: gcc.target/i386/pieces-memcpy-19.c scan-assembler-times vmovdqu[ \\t]+[^\n]*%xmm 8
FAIL: gcc.target/i386/pieces-memcpy-20.c scan-assembler-times vmovdqu(?:64|)[ \\t]+[^\n]*%ymm 4
FAIL: gcc.target/i386/pieces-memcpy-20.c scan-assembler-times vmovdqu(?:64|)[ \\t]+[^\n]*%ymm 4
FAIL: gcc.target/i386/pieces-memcpy-21.c scan-assembler-times vmovdqu(?:64|)[ \\t]+[^\n]*%ymm 4
FAIL: gcc.target/i386/pieces-memcpy-21.c scan-assembler-times vmovdqu(?:64|)[ \\t]+[^\n]*%ymm 4
FAIL: gcc.target/i386/pieces-memcpy-7.c scan-assembler-times movdqu[ \\t]+[^\n]*%xmm 1
FAIL: gcc.target/i386/pieces-memcpy-7.c scan-assembler-times movups[ \\t]+[^\n]*%xmm 1
FAIL: gcc.target/i386/pieces-memcpy-8.c scan-assembler-times vmovdqu[ \\t]+[^\n]*%xmm 2
FAIL: gcc.target/i386/pieces-memcpy-9.c scan-assembler-times vmovdqu[ \\t]+[^\n]*%xmm 2
FAIL: gcc.target/i386/pr104610.c scan-assembler-not (?n)je.*L[0-9]
FAIL: gcc.target/i386/pr104610.c scan-assembler-not (?n)je.*L[0-9]
FAIL: gcc.target/i386/pr104610.c scan-assembler-not (?n)jne.*L[0-9]
FAIL: gcc.target/i386/pr104610.c scan-assembler-not (?n)jne.*L[0-9]
FAIL: gcc.target/i386/pr104610.c scan-assembler-times (?n)vptest.*ymm 1
FAIL: gcc.target/i386/pr104610.c scan-assembler-times (?n)vptest.*ymm 1
FAIL: gcc.target/i386/pr104610.c scan-assembler-times sete 1
FAIL: gcc.target/i386/pr90773-24.c scan-assembler-times movups[\\t ]%xmm[0-9]+, \\(%[^,]+\\) 1
FAIL: gcc.target/i386/pr90773-24.c scan-assembler-times movups[\\t ]%xmm[0-9]+, 16\\(%[^,]+\\) 1
FAIL: gcc.target/i386/pr90773-24.c scan-assembler-times movups[\\t ]%xmm[0-9]+, 32\\(%[^,]+\\) 1
FAIL: gcc.target/i386/pr90773-24.c scan-assembler-times movups[\\t ]%xmm[0-9]+, 48\\(%[^,]+\\) 1
FAIL: gcc.target/i386/pr90773-26.c scan-assembler-times vmovdqu[\\t ]%ymm[0-9]+, \\(%[^,]+\\) 1
FAIL: gcc.target/i386/pr90773-26.c scan-assembler-times vmovdqu[\\t ]%ymm[0-9]+, \\(%[^,]+\\) 1
FAIL: gcc.target/i386/pr90773-26.c scan-assembler-times vmovdqu[\\t ]%ymm[0-9]+, 32\\(%[^,]+\\) 1
FAIL: gcc.target/i386/pr90773-26.c scan-assembler-times vmovdqu[\\t ]%ymm[0-9]+, 32\\(%[^,]+\\) 1
FAIL: g++.target/i386/pr80566-2.C  -std=gnu++14  scan-assembler-times vmovdqu[ \\t]+[^\n]*%ymm 4
FAIL: g++.target/i386/pr80566-2.C  -std=gnu++14  scan-assembler-times vmovdqu[ \\t]+[^\n]*%ymm 4
FAIL: g++.target/i386/pr80566-2.C  -std=gnu++17  scan-assembler-times vmovdqu[ \\t]+[^\n]*%ymm 4
FAIL: g++.target/i386/pr80566-2.C  -std=gnu++17  scan-assembler-times vmovdqu[ \\t]+[^\n]*%ymm 4
FAIL: g++.target/i386/pr80566-2.C  -std=gnu++20  scan-assembler-times vmovdqu[ \\t]+[^\n]*%ymm 4
FAIL: g++.target/i386/pr80566-2.C  -std=gnu++20  scan-assembler-times vmovdqu[ \\t]+[^\n]*%ymm 4
FAIL: g++.target/i386/pr80566-2.C  -std=gnu++98  scan-assembler-times vmovdqu[ \\t]+[^\n]*%ymm 4
FAIL: g++.target/i386/pr80566-2.C  -std=gnu++98  scan-assembler-times vmovdqu[ \\t]+[^\n]*%ymm 4

New passes:

To reproduce the test failures:

$ cd gcc
$ make check RUNTESTFLAGS="--target_board='unix{-m32,}' i386.exp=failed-test"

If a run-time test failure fails to reproduce, please run the executable
under Intel SDE which can be downloaded from

https://www.intel.com/content/www/us/en/developer/articles/tool/software-development-emulator.html

$ ..../sde -future -- ./executable

To debug executable under SDE:

1. Turn on SDE debug:

$ ..../sde -future -debug -- ./executable

and you should get:

Application stopped until continued from debugger.
Start GDB, then issue this command at the (gdb) prompt:
  target remote :xxxxx

where xxxxx is a random number.

2. Run gdb

$ gdb ./executable
...
(gdb) target remote :xxxxx

and you should get:
...
Reading symbols from /lib64/ld-linux-x86-64.so.2...(no debugging symbols found)...done.
Loaded symbols for /lib64/ld-linux-x86-64.so.2
0x00007fae0fc07100 in _start ()
   from /lib64/ld-linux-x86-64.so.2
(gdb)