From ccbc8bd4d4df71c9a55722761bf9c7d3c924d8b9 Mon Sep 17 00:00:00 2001
From: Richard Earnshaw <rearnsha@arm.com>
Date: Fri, 3 Nov 2023 10:34:40 +0000
Subject: [PATCH] arm: testsuite: correctly detect hard_float
Add an arm-specific test to check_effective_target_hard_float for
Arm to handle cases where we only have single-precision FP in hardware.
gcc/testsuite:
* lib/target-supports.exp (check_effective_target_hard_float): Add
arm-specific test.
---
gcc/testsuite/lib/target-supports.exp | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/gcc/testsuite/lib/target-supports.exp b/gcc/testsuite/lib/target-supports.exp
index d414cddf4dcd..ee173b9fb6bd 100644
--- a/gcc/testsuite/lib/target-supports.exp
+++ b/gcc/testsuite/lib/target-supports.exp
@@ -1420,6 +1420,17 @@ proc check_effective_target_mpaired_single { args } {
# Return true if the target has access to FPU instructions.
proc check_effective_target_hard_float { } {
+ # This should work on cores that only have single-precision,
+ # and should also correctly handle legacy cores that had thumb1 and
+ # lacked FP support for that, but had it in Arm state.
+ if { [istarget arm*-*-*] } {
+ return [check_no_compiler_messages hard_float assembly {
+ #if __ARM_FP == 0
+ #error __arm_soft_float
+ #endif
+ }]
+ }
+
if { [istarget loongarch*-*-*] } {
return [check_no_compiler_messages hard_float assembly {
#if (defined __loongarch_soft_float)
--
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