[PATCH] correct handling of non-constant width and precision (pr 78521)

[David Edelsohn]

Martin,

I am seeing a number of new failures with the testcases on AIX.

FAIL: gcc.dg/tree-ssa/builtin-sprintf-warn-1.c (test for excess errors)

Excess errors:
/nasfarm/edelsohn/src/src/gcc/testsuite/gcc.dg/tree-ssa/builtin-sprintf-warn-1.c:1485:3:
warning: specified destination size 2147483647 is too large
[-Wformat-length=]


Also, a number of errors like

FAIL: gcc.dg/tree-ssa/builtin-sprintf-warn-3.c  target lp64  (test for
warnings, line 256)
PASS: gcc.dg/tree-ssa/builtin-sprintf-warn-3.c  (test for warnings, line 256)

Thanks, David