Due to the Linux kernel exposing the lrcpc3 architectural feature as
"lrcpc3", this patch corrects the relevant FEATURE_STRING entry in the
"rcpc3" AARCH64_OPT_FMV_EXTENSION macro, such that the feature can be
correctly detected when doing native compilation on rcpc3-enabled
targets.
Regtested on aarch64-linux-gnu.
gcc/ChangeLog:
* config/aarch64/aarch64-option-extensions.def: Fix 'lrcpc3'
entry.
gcc/testsuite/ChangeLog:
* testsuite/gcc.target/aarch64/cpunative/info_24: New.
* testsuite/gcc.target/aarch64/cpunative/native_cpu_24.c:
Likewise.
---
gcc/config/aarch64/aarch64-option-extensions.def | 2 +-
gcc/testsuite/gcc.target/aarch64/cpunative/info_24 | 8 ++++++++
.../gcc.target/aarch64/cpunative/native_cpu_24.c | 11 +++++++++++
3 files changed, 20 insertions(+), 1 deletion(-)
create mode 100644 gcc/testsuite/gcc.target/aarch64/cpunative/info_24
create mode 100644 gcc/testsuite/gcc.target/aarch64/cpunative/native_cpu_24.c
diff --git a/gcc/config/aarch64/aarch64-option-extensions.def
b/gcc/config/aarch64/aarch64-option-extensions.def
index 1a3b91c68cf..975e7b84cec 100644
--- a/gcc/config/aarch64/aarch64-option-extensions.def
+++ b/gcc/config/aarch64/aarch64-option-extensions.def
@@ -174,7 +174,7 @@ AARCH64_OPT_FMV_EXTENSION("rcpc", RCPC, (), (), (), "lrcpc")
AARCH64_FMV_FEATURE("rcpc2", RCPC2, (RCPC))
-AARCH64_OPT_FMV_EXTENSION("rcpc3", RCPC3, (), (), (), "rcpc3")
+AARCH64_OPT_FMV_EXTENSION("rcpc3", RCPC3, (), (), (), "lrcpc3")
AARCH64_FMV_FEATURE("frintts", FRINTTS, ())
diff --git a/gcc/testsuite/gcc.target/aarch64/cpunative/info_24
b/gcc/testsuite/gcc.target/aarch64/cpunative/info_24
new file mode 100644
index 00000000000..8d3c16a1091
--- /dev/null
+++ b/gcc/testsuite/gcc.target/aarch64/cpunative/info_24
@@ -0,0 +1,8 @@
+processor : 0
+BogoMIPS : 100.00
+Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 asimddp lrcpc3
+CPU implementer : 0xfe
+CPU architecture: 8
+CPU variant : 0x0
+CPU part : 0xd08
+CPU revision : 2
\ No newline at end of file
diff --git a/gcc/testsuite/gcc.target/aarch64/cpunative/native_cpu_24.c
b/gcc/testsuite/gcc.target/aarch64/cpunative/native_cpu_24.c
new file mode 100644
index 00000000000..05dc870885f
--- /dev/null
+++ b/gcc/testsuite/gcc.target/aarch64/cpunative/native_cpu_24.c
@@ -0,0 +1,11 @@
+/* { dg-do compile { target { { aarch64*-*-linux*} && native } } } */
+/* { dg-set-compiler-env-var GCC_CPUINFO
"$srcdir/gcc.target/aarch64/cpunative/info_23" } */
+/* { dg-additional-options "-mcpu=native --save-temps " } */
+
+int main()
+{
+ return 0;
+}
+
+/* { dg-final { scan-assembler {\.arch armv8-a\+dotprod\+crc\+crypto\+rcpc3} }
} */
+/* Test one where rcpc3 is available and so should be emitted. */
--
2.34.1
