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[AArch64] Tighten direct call pattern for sibcall to repair -fno-plt

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2015-08-06  Jiong Wang  <jiong.wang@arm.com>

gcc/
  * config/aarch64/constraints.md (Usf): Add the test of
  aarch64_is_noplt_call_p.

gcc/testsuite/
  * gcc.target/aarch64/noplt_3.c: New testcase.

From-SVN: r226682
This commit is contained in:
Jiong Wang 2015-08-06 16:02:16 +00:00 • committed by Jiong Wang
parent b60d63cbae
commit 201fa0b3a0
4 changed files with 32 additions and 2 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2015-08-06 Jiong Wang <jiong.wang@arm.com>
* config/aarch64/constraints.md (Usf): Add the test of
aarch64_is_noplt_call_p.
2015-08-06 Jiong Wang <jiong.wang@arm.com>
* config/aarch64/aarch64-protos.h (aarch64_is_noplt_call_p): New declaration.

5
gcc/config/aarch64/constraints.md
View file

@ -101,8 +101,9 @@
(match_test "(unsigned HOST_WIDE_INT) ival < 64")))
(define_constraint "Usf"
"@internal Usf is a symbol reference."
(match_code "symbol_ref"))
"@internal Usf is a symbol reference under the context where plt stub allowed."
(and (match_code "symbol_ref")
(match_test "!aarch64_is_noplt_call_p (op)")))
(define_constraint "UsM"
"@internal

4
gcc/testsuite/ChangeLog
View file

@ -1,3 +1,7 @@
2015-08-06 Jiong Wang <jiong.wang@arm.com>
* gcc.target/aarch64/noplt_3.c: New testcase.
2015-08-06 Jiong Wang <jiong.wang@arm.com>
* gcc.target/aarch64/noplt_1.c: New testcase.

20
gcc/testsuite/gcc.target/aarch64/noplt_3.c Normal file
View file

@ -0,0 +1,20 @@
/* { dg-do compile } */
/* { dg-options "-O2 -fpic -fno-plt" } */
/* { dg-skip-if "-mcmodel=large, no support for -fpic" { aarch64-*-* } { "-mcmodel=large" } { "" } } */
int dec (int);
int
cal (int a)
{
return dec (a);
}
void
cal_novalue (int a)
{
dec (a);
}
/* { dg-final { scan-assembler-times "#:got:" 2 { target { aarch64_tiny || aarch64_small } } } } */
/* { dg-final { scan-assembler-times "#:got_lo12:" 2 { target aarch64_small } } } */