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[Committed] RISC-V: Add deprecation warning to LP64E abi

Message ID 20240805223556.2727588-1-patrick@rivosinc.com
State Committed
Headers
Series [Committed] RISC-V: Add deprecation warning to LP64E abi |

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rivoscibot/toolchain-ci-rivos-apply-patch success Patch applied
rivoscibot/toolchain-ci-rivos-build--newlib-rv64gc-lp64d-non-multilib success Build passed
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linaro-tcwg-bot/tcwg_gcc_build--master-arm warning Patch is already merged
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Commit Message

Patrick O'Neill Aug. 5, 2024, 10:35 p.m. UTC 
  gcc/ChangeLog:

	PR target/116152
	* config/riscv/riscv.cc (riscv_option_override): Add deprecation
	warning.

gcc/testsuite/ChangeLog:

	* gcc.target/riscv/predef-9.c: Add check for warning.

Signed-off-by: Patrick O'Neill <patrick@rivosinc.com>
---
 gcc/config/riscv/riscv.cc                 | 7 +++++++
 gcc/testsuite/gcc.target/riscv/predef-9.c | 2 ++
 2 files changed, 9 insertions(+)

--
2.43.2
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Patch

diff --git a/gcc/config/riscv/riscv.cc b/gcc/config/riscv/riscv.cc
index b19d56149e7..b005af62e61 100644
--- a/gcc/config/riscv/riscv.cc
+++ b/gcc/config/riscv/riscv.cc
@@ -9823,6 +9823,13 @@  riscv_option_override (void)
     error ("ILP32E ABI does not support the %qc extension",
 	   UNITS_PER_FP_REG > 8 ? 'Q' : 'D');

+  if (riscv_abi == ABI_LP64E)
+    {
+      if (warning (OPT_Wdeprecated, "LP64E ABI is marked for deprecation in GCC"))
+	inform (UNKNOWN_LOCATION, "If you need LP64E please notify the GCC "
+		"project via https://gcc.gnu.org/PR116152");
+    }
+
   /* Zfinx require abi ilp32, ilp32e, lp64 or lp64e.  */
   if (TARGET_ZFINX
       && riscv_abi != ABI_ILP32 && riscv_abi != ABI_LP64
diff --git a/gcc/testsuite/gcc.target/riscv/predef-9.c b/gcc/testsuite/gcc.target/riscv/predef-9.c
index cc3abc9a741..0d9488529ea 100644
--- a/gcc/testsuite/gcc.target/riscv/predef-9.c
+++ b/gcc/testsuite/gcc.target/riscv/predef-9.c
@@ -1,5 +1,7 @@ 
 /* { dg-do compile } */
 /* { dg-options "-march=rv64em -mabi=lp64e -mno-div -mcmodel=medlow" } */
+/* { dg-warning "LP64E ABI is marked for deprecation in GCC" "" { target *-*-* } 0 } */
+/* { dg-note "If you need LP64E please notify the GCC project via https://gcc.gnu.org/PR116152" "" { target *-*-* } 0 } */

 int main () {
 #if !defined(__riscv)