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| author | Richard Earnshaw <rearnsha@arm.com> | 2022-04-12 13:35:27 +0100 |
|---|---|---|
| committer | Richard Earnshaw <rearnsha@arm.com> | 2022-04-12 13:38:44 +0100 |
| commit | 62082d278d1fc9773539244194061ab32556db4d (patch) | |
| tree | d48feb501e518937555a57466cedb7f945832dbd | |
| parent | 31cccadcf2d3cc8acb7a5f36ed57ca847f7ea0ea (diff) | |
| download | gcc-62082d278d1fc9773539244194061ab32556db4d.zip gcc-62082d278d1fc9773539244194061ab32556db4d.tar.gz gcc-62082d278d1fc9773539244194061ab32556db4d.tar.bz2 | |
arm: fix testsuite failure of reg_equal_test.c [PR101755]
The test failure in PR101755 is due to the gimple optimizers getting
smarter. But really we are just testing that RTL expansion is doing
the right thing and annotating a constant accordingly. So rework the
test to use GIMPLE input and simplify the code entirely. Also, this
test only ever worked on architecture versions with the MOVW/MOVT
instructions, so check for this before running.
gcc/testsuite/ChangeLog:
PR target/101755
* gcc.target/arm/reg_equal_test.c: Convert to gimple test. Restrict
to architectures with MOVW/MOVT.
| -rw-r--r-- | gcc/testsuite/gcc.target/arm/reg_equal_test.c | 25 |
1 files changed, 8 insertions, 17 deletions
diff --git a/gcc/testsuite/gcc.target/arm/reg_equal_test.c b/gcc/testsuite/gcc.target/arm/reg_equal_test.c index 58fa9dd..d87c75c 100644 --- a/gcc/testsuite/gcc.target/arm/reg_equal_test.c +++ b/gcc/testsuite/gcc.target/arm/reg_equal_test.c @@ -1,24 +1,15 @@ /* { dg-do compile } */ -/* { dg-options "-O1 -fdump-rtl-expand" } */ +/* { dg-options "-fgimple -O1 -fdump-rtl-expand" } */ +/* { dg-skip-if "" { ! { arm_thumb2_ok || arm_thumb1_movt_ok } } } */ -extern void abort (void); -unsigned int a = 1; - -int -main (void) +void __GIMPLE (ssa,startwith ("expand")) +x () { - unsigned int b, c, d; - - if (sizeof (int) != 4 || (int) 0xc7d24b5e > 0) - return 0; - - c = 0xc7d24b5e; - d = a | -2; - b = (d == 0) ? c : (c % d); - if (b != c) - abort (); + unsigned int d; - return 0; + __BB(2,guessed_local(1073741824)): + d_1 = 3352447838u; + return; } /* { dg-final { scan-rtl-dump "expr_list:REG_EQUAL \\(const_int -942519458" "expand" } } */ |