Hexagon (tests/tcg/hexagon) test instructions that might set bits in USR

Hexagon has ~200 instructions that set the saturate bit in USR, these
were broken into groups of similar instructions and one instruction
from each group is tested with at least one input that does not
saturate and at least one input that does saturate.

Signed-off-by: Taylor Simpson <tsimpson@quicinc.com>
Message-Id: <20220210021556.9217-7-tsimpson@quicinc.com>
Acked-by: Richard Henderson <richard.henderson@linaro.org>

tests/tcg/hexagon/Makefile.target

@@ -1,5 +1,5 @@
 ##
-##  Copyright(c) 2019-2021 Qualcomm Innovation Center, Inc. All Rights Reserved.
+##  Copyright(c) 2019-2022 Qualcomm Innovation Center, Inc. All Rights Reserved.
 ##
 ##  This program is free software; you can redistribute it and/or modify
 ##  it under the terms of the GNU General Public License as published by
@@ -30,6 +30,7 @@ first: $(HEX_SRC)/first.S
 HEX_TESTS = first
 HEX_TESTS += hex_sigsegv
 HEX_TESTS += misc
+HEX_TESTS += usr
 HEX_TESTS += preg_alias
 HEX_TESTS += dual_stores
 HEX_TESTS += multi_result
@@ -43,3 +44,8 @@ HEX_TESTS += fpstuff
 HEX_TESTS += overflow
 
 TESTS += $(HEX_TESTS)
+
+# This test has to be compiled for the -mv67t target
+usr: usr.c
+	$(CC) $(CFLAGS) -mv67t -O2 -Wno-inline-asm -Wno-expansion-to-defined $< -o $@ $(LDFLAGS)
+