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tests/tcg/hexagon: Add cs{0,1} coverage

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Cover cs0,1 register corruption in the signal_context test case.

lc0, sa0 registers previously omitted from the clobbers list
are now captured.

Reviewed-by: Anton Johansson <anjo@rev.ng>
Reviewed-by: Taylor Simpson <ltaylorsimpson@gmail.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Brian Cain <brian.cain@oss.qualcomm.com>
This commit is contained in:
Brian Cain
2025-10-17 13:45:46 -07:00
parent 81c9311296
commit 6f6edad6c8
1 changed files with 20 additions and 3 deletions
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tests/tcg/hexagon/signal_context.c
+20 -3
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@@ -26,7 +26,11 @@ void sig_user(int sig, siginfo_t *info, void *puc)
"p1 = r7\n\t"
"p2 = r7\n\t"
"p3 = r7\n\t"
: : : "r7", "p0", "p1", "p2", "p3");
"r6 = #0x12345678\n\t"
"cs0 = r6\n\t"
"r6 = #0x87654321\n\t"
"cs1 = r6\n\t"
: : : "r6", "r7", "p0", "p1", "p2", "p3", "cs0", "cs1");
}
int main()
@@ -53,7 +57,11 @@ int main()
timer_settime(tid, 0, &it, NULL);
asm("loop0(1f, %1)\n\t"
"1: r8 = #0xff\n\t"
"1: r9 = #0xdeadbeef\n\t"
" cs0 = r9\n\t"
" r9 = #0xbadc0fee\n\t"
" cs1 = r9\n\t"
" r8 = #0xff\n\t"
" p0 = r8\n\t"
" p1 = r8\n\t"
" p2 = r8\n\t"
@@ -74,10 +82,19 @@ int main()
" r8 = p3\n\t"
" p0 = cmp.eq(r8, #0xff)\n\t"
" if (!p0) jump 2b\n\t"
" r8 = cs0\n\t"
" r9 = #0xdeadbeef\n\t"
" p0 = cmp.eq(r8, r9)\n\t"
" if (!p0) jump 2b\n\t"
" r8 = cs1\n\t"
" r9 = #0xbadc0fee\n\t"
" p0 = cmp.eq(r8, r9)\n\t"
" if (!p0) jump 2b\n\t"
"4: {}: endloop0\n\t"
:
: "r"(&err), "r"(i)
: "memory", "r8", "p0", "p1", "p2", "p3");
: "memory", "r8", "r9", "p0", "p1", "p2", "p3", "cs0", "cs1", "lc0",
"sa0");
puts(err ? "FAIL" : "PASS");
return err;