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From: Alexandre Oliva <aoliva@gcc.gnu.org> To: gcc-cvs@gcc.gnu.org Subject: [gcc(refs/users/aoliva/heads/testme)] [rs6000] Correct match pattern in pr56605.c Date: Thu, 30 Mar 2023 14:08:12 +0000 (GMT) [thread overview] Message-ID: <20230330140812.3DE923858004@sourceware.org> (raw) https://gcc.gnu.org/g:52214f08d1f6f9b0e14bcff43ab697daa98a1cd1 commit 52214f08d1f6f9b0e14bcff43ab697daa98a1cd1 Author: Haochen Gui <guihaoc@linux.ibm.com> Date: Thu Mar 30 05:07:25 2023 -0300 [rs6000] Correct match pattern in pr56605.c This patch corrects the match pattern in pr56605.c. The former pattern is wrong and test case fails with GCC11. It should match following insn on each subtarget after mode promotion is disabled. The patch need to be backported to GCC11. //gimple _17 = (unsigned int) _20; prolog_loop_niters.4_23 = _17 & 3; //rtl (insn 19 18 20 2 (parallel [ (set (reg:CC 208) (compare:CC (and:SI (subreg:SI (reg:DI 207) 0) (const_int 3 [0x3])) (const_int 0 [0]))) (set (reg:SI 129 [ prolog_loop_niters.5 ]) (and:SI (subreg:SI (reg:DI 207) 0) (const_int 3 [0x3]))) ]) 197 {*andsi3_imm_mask_dot2} for gcc/testsuite/ChangeLog PR target/102146 * gcc.target/powerpc/pr56605.c: Correct match pattern in combine pass. Diff: --- gcc/testsuite/gcc.target/powerpc/pr56605.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/gcc/testsuite/gcc.target/powerpc/pr56605.c b/gcc/testsuite/gcc.target/powerpc/pr56605.c index 7695f87db6f..651a88e3cc7 100644 --- a/gcc/testsuite/gcc.target/powerpc/pr56605.c +++ b/gcc/testsuite/gcc.target/powerpc/pr56605.c @@ -11,5 +11,4 @@ void foo (short* __restrict sb, int* __restrict ia) ia[i] = (int) sb[i]; } -/* { dg-final { scan-rtl-dump-times {\(compare:CC \((?:and|zero_extend):(?:[SD]I) \((?:sub)?reg:[SD]I} 1 "combine" } } */ - +/* { dg-final { scan-rtl-dump-times {\(compare:CC \(and:SI \(subreg:SI \(reg:DI} 1 "combine" } } */
next reply other threads:[~2023-03-30 14:08 UTC|newest] Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top 2023-03-30 14:08 Alexandre Oliva [this message] -- strict thread matches above, loose matches on Subject: below -- 2023-03-25 14:53 Alexandre Oliva 2023-03-24 6:25 Alexandre Oliva
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