[clang] 904b090 - [RISCV] Add FeatureFastUnalignedAccess to sifive-p450. (#79075)

[via cfe-commits]

Author: Craig Topper
Date: 2024-01-22T20:17:36-08:00
New Revision: 904b0901ef2d33e6232b7a51fa2525c30fd117e8

URL: https://github.com/llvm/llvm-project/commit/904b0901ef2d33e6232b7a51fa2525c30fd117e8
DIFF: https://github.com/llvm/llvm-project/commit/904b0901ef2d33e6232b7a51fa2525c30fd117e8.diff

LOG: [RISCV] Add FeatureFastUnalignedAccess to sifive-p450. (#79075)

Added: 
    

Modified: 
    clang/test/Preprocessor/riscv-target-features.c
    llvm/lib/Target/RISCV/RISCVProcessors.td

Removed: 
    


################################################################################
diff  --git a/clang/test/Preprocessor/riscv-target-features.c b/clang/test/Preprocessor/riscv-target-features.c
index 5fde5ccdbeacfb..39d2c66f14b23f 100644
--- a/clang/test/Preprocessor/riscv-target-features.c
+++ b/clang/test/Preprocessor/riscv-target-features.c
@@ -1400,4 +1400,6 @@
 // RUN:   -munaligned-access -o - | FileCheck %s --check-prefix=CHECK-MISALIGNED-FAST
 // RUN: %clang --target=riscv64-unknown-linux-gnu -march=rv64i -E -dM %s \
 // RUN:   -munaligned-access -o - | FileCheck %s --check-prefix=CHECK-MISALIGNED-FAST
+// RUN: %clang --target=riscv64-unknown-linux-gnu -mcpu=sifive-p450 -E -dM %s \
+// RUN:  -o - | FileCheck %s --check-prefix=CHECK-MISALIGNED-FAST
 // CHECK-MISALIGNED-FAST: __riscv_misaligned_fast 1

diff  --git a/llvm/lib/Target/RISCV/RISCVProcessors.td b/llvm/lib/Target/RISCV/RISCVProcessors.td
index db60a5a1dab002..af621de9f802aa 100644
--- a/llvm/lib/Target/RISCV/RISCVProcessors.td
+++ b/llvm/lib/Target/RISCV/RISCVProcessors.td
@@ -238,7 +238,8 @@ def SIFIVE_P450 : RISCVProcessorModel<"sifive-p450", SiFiveP400Model,
                                        FeatureStdExtZba,
                                        FeatureStdExtZbb,
                                        FeatureStdExtZbs,
-                                       FeatureStdExtZfhmin],
+                                       FeatureStdExtZfhmin,
+                                       FeatureFastUnalignedAccess],
                                       [TuneNoDefaultUnroll,
                                        TuneConditionalCompressedMoveFusion,
                                        TuneLUIADDIFusion,