testsuite: Adjust g++.dg/opt/devirt2.C on SPARC

Since 20231124, g++.dg/opt/devirt2.C began to FAIL on 32 and 64-bit
Solaris/SPARC:

FAIL: g++.dg/opt/devirt2.C  -std=gnu++14  scan-assembler-times (jmp|call)[^\\n]*xyzzy 4
FAIL: g++.dg/opt/devirt2.C  -std=gnu++17  scan-assembler-times (jmp|call)[^\\n]*xyzzy 4
FAIL: g++.dg/opt/devirt2.C  -std=gnu++20  scan-assembler-times (jmp|call)[^\\n]*xyzzy 4
FAIL: g++.dg/opt/devirt2.C  -std=gnu++98  scan-assembler-times (jmp|call)[^\\n]*xyzzy 4

This is no doubt due to

commit ba0869323e1d45b1328b4cb723cb139a2e2146c3
Author: Maciej W. Rozycki <macro@embecosm.com>
Date:   Thu Nov 23 16:13:59 2023 +0000

    testsuite: Fix subexpressions with `scan-assembler-times'

which fixes exactly the double-counting the test relied on/worked around
on sparc.  Fixed by adjusting the count.

Tested on sparc-sun-solaris2.11.

2023-11-28  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

	gcc/testsuite:
	* g++.dg/opt/devirt2.C: Adjust scan-assembler-count on sparc for
	removal of -inline from regexp.  Update comment.

diff --git a/gcc/testsuite/g++.dg/opt/devirt2.C b/gcc/testsuite/g++.dg/opt/devirt2.C
index cf4842bd4df346d241ca8d9d0e7bf39403f5e23d..d71bdaa41f6c34c0b7c44df9186fd3943d054bc1 100644 (file)
--- a/gcc/testsuite/g++.dg/opt/devirt2.C
+++ b/gcc/testsuite/g++.dg/opt/devirt2.C
@@ -17,9 +17,7 @@
 // { dg-final { scan-assembler-times "jsr\[^\n\]*xyzzy" 2 { target alpha*-*-* } } }
 // Unless the assembler supports -relax, the 32-bit SPARC compiler generates
 // sethi/jmp instead of just call, so the scans need to be more specific.
-// With subexpressions, Tcl regexp -inline -all returns both the complete
-// match and the subexpressions, so double the count.
-// { dg-final { scan-assembler-times "\(jmp|call\)\[^\n\]*xyzzy" 4 { target sparc*-*-* } } }
+// { dg-final { scan-assembler-times "\(jmp|call\)\[^\n\]*xyzzy" 2 { target sparc*-*-* } } }
 
 struct S { S(); virtual void xyzzy(); };
 struct R { int a; S s; R(); };