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authorPeter Maydell <peter.maydell@linaro.org>2023-09-15 15:37:00 +0100
committerPeter Maydell <peter.maydell@linaro.org>2023-09-21 16:07:13 +0100
commit3039b090f2058949edf6a7f1c8e793bc309fa6de (patch)
treef14ee1a36a3267e5d8c66c0f2b6178a2db861506 /linux-user/elfload.c
parent5f7b71fb99dc98831d9ad077fe1a58a4b119e952 (diff)
target/arm: Implement FEAT_HBC
FEAT_HBC (Hinted conditional branches) provides a new instruction BC.cond, which behaves exactly like the existing B.cond except that it provides a hint to the branch predictor about the likely behaviour of the branch. Since QEMU does not implement branch prediction, we can treat this identically to B.cond. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Diffstat (limited to 'linux-user/elfload.c')
-rw-r--r--linux-user/elfload.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/linux-user/elfload.c b/linux-user/elfload.c
index bbb4f08109..203a2b790d 100644
--- a/linux-user/elfload.c
+++ b/linux-user/elfload.c
@@ -815,6 +815,7 @@ uint32_t get_elf_hwcap2(void)
GET_FEATURE_ID(aa64_sme_f64f64, ARM_HWCAP2_A64_SME_F64F64);
GET_FEATURE_ID(aa64_sme_i16i64, ARM_HWCAP2_A64_SME_I16I64);
GET_FEATURE_ID(aa64_sme_fa64, ARM_HWCAP2_A64_SME_FA64);
+ GET_FEATURE_ID(aa64_hbc, ARM_HWCAP2_A64_HBC);
return hwcaps;
}