target/arm: Convert load/store tags insns to decodetree

Convert the instructions in the load/store memory tags instruction group to decodetree. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20230602155223.2040685-21-peter.maydell@linaro.org
qemu · Jun 19, 2023 · 946ccfd · 946ccfd
1 parent 3d50721
commit 946ccfd
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Showing 2 changed files with 190 additions and 177 deletions.
diff --git a/target/arm/tcg/a64.decode b/target/arm/tcg/a64.decode
@@ -528,3 +528,28 @@ LD_single          0 . 001101 . 1 . ..... 10 . 001 ..... .....  @ldst_single_d
 
 # Replicating load case
 LD_single_repl  0 q:1 001101 p:1 1 . rm:5 11 . 0 scale:2 rn:5 rt:5 selem=%ldst_single_selem
+
+%tag_offset     12:s9 !function=scale_by_log2_tag_granule
+&ldst_tag       rn rt imm p w
+@ldst_tag       ........ .. . ......... .. rn:5 rt:5 &ldst_tag imm=%tag_offset
+@ldst_tag_mult  ........ .. . 000000000 .. rn:5 rt:5 &ldst_tag imm=0
+
+STZGM           11011001 00 1 ......... 00 ..... ..... @ldst_tag_mult p=0 w=0
+STG             11011001 00 1 ......... 01 ..... ..... @ldst_tag p=1 w=1
+STG             11011001 00 1 ......... 10 ..... ..... @ldst_tag p=0 w=0
+STG             11011001 00 1 ......... 11 ..... ..... @ldst_tag p=0 w=1
+
+LDG             11011001 01 1 ......... 00 ..... ..... @ldst_tag p=0 w=0
+STZG            11011001 01 1 ......... 01 ..... ..... @ldst_tag p=1 w=1
+STZG            11011001 01 1 ......... 10 ..... ..... @ldst_tag p=0 w=0
+STZG            11011001 01 1 ......... 11 ..... ..... @ldst_tag p=0 w=1
+
+STGM            11011001 10 1 ......... 00 ..... ..... @ldst_tag_mult p=0 w=0
+ST2G            11011001 10 1 ......... 01 ..... ..... @ldst_tag p=1 w=1
+ST2G            11011001 10 1 ......... 10 ..... ..... @ldst_tag p=0 w=0
+ST2G            11011001 10 1 ......... 11 ..... ..... @ldst_tag p=0 w=1
+
+LDGM            11011001 11 1 ......... 00 ..... ..... @ldst_tag_mult p=0 w=0
+STZ2G           11011001 11 1 ......... 01 ..... ..... @ldst_tag p=1 w=1
+STZ2G           11011001 11 1 ......... 10 ..... ..... @ldst_tag p=0 w=0
+STZ2G           11011001 11 1 ......... 11 ..... ..... @ldst_tag p=0 w=1