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authorChristian Krinitsin <mail@krinitsin.com>2025-07-03 07:27:52 +0000
committerChristian Krinitsin <mail@krinitsin.com>2025-07-03 07:27:52 +0000
commitd0c85e36e4de67af628d54e9ab577cc3fad7796a (patch)
treef8f784b0f04343b90516a338d6df81df3a85dfa2 /results/classifier/gemma3:12b/mistranslation/653
parent7f4364274750eb8cb39a3e7493132fca1c01232e (diff)
downloademulator-bug-study-d0c85e36e4de67af628d54e9ab577cc3fad7796a.tar.gz
emulator-bug-study-d0c85e36e4de67af628d54e9ab577cc3fad7796a.zip
add deepseek and gemma results
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-rw-r--r--results/classifier/gemma3:12b/mistranslation/65360
1 files changed, 60 insertions, 0 deletions
diff --git a/results/classifier/gemma3:12b/mistranslation/653 b/results/classifier/gemma3:12b/mistranslation/653
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+
+Tricore: wrong implementation of OPC2_32_RCRW_IMASK and OPC2_32_RCRW_INSERT in target/tricore/translate.c
+Description of problem:
+The translation of the instructions is not done properly.
+please check
+https://www.infineon.com/dgdl/Infineon-TC2xx_Architecture_vol2-UM-v01_00-EN.pdf?fileId=5546d46269bda8df0169ca1bf33124a8
+
+1) Implemented in target/tricore/translate.c as
+ switch (op2) {
+ case OPC2_32_RCRW_IMASK:
+ tcg_gen_andi_tl(temp, cpu_gpr_d[r4], 0x1f);
+ tcg_gen_movi_tl(temp2, (1 << width) - 1);
+ tcg_gen_shl_tl(cpu_gpr_d[r3 + 1], temp2, temp);
+ tcg_gen_movi_tl(temp2, const4);
+ tcg_gen_shl_tl(cpu_gpr_d[r3], temp2, temp);
+ break;
+ case OPC2_32_RCRW_INSERT:
+ temp3 = tcg_temp_new();
+
+ tcg_gen_movi_tl(temp, width);
+ tcg_gen_movi_tl(temp2, const4);
+ tcg_gen_andi_tl(temp3, cpu_gpr_d[r4], 0x1f);
+ gen_insert(cpu_gpr_d[r3], cpu_gpr_d[r1], temp2, temp, temp3);
+
+ tcg_temp_free(temp3);
+ break;
+
+2) Should be
+ case OPC2_32_RCRW_IMASK:
+ tcg_gen_andi_tl(temp, cpu_gpr_d[r3], 0x1f);
+ tcg_gen_movi_tl(temp2, (1 << width) - 1);
+ tcg_gen_shl_tl(cpu_gpr_d[r4 + 1], temp2, temp);
+ tcg_gen_movi_tl(temp2, const4);
+ tcg_gen_shl_tl(cpu_gpr_d[r4], temp2, temp);
+ break;
+ case OPC2_32_RCRW_INSERT:
+ temp3 = tcg_temp_new();
+
+ tcg_gen_movi_tl(temp, width);
+ tcg_gen_movi_tl(temp2, const4);
+ tcg_gen_andi_tl(temp3, cpu_gpr_d[r3], 0x1f);
+ gen_insert(cpu_gpr_d[r4], cpu_gpr_d[r1], temp2, temp, temp3);
+
+ tcg_temp_free(temp3);
+ break;
+From encoding point of view d4 is target and not source.
+Assumption is here misleading swap of d3 and d4.
+
+
+Detected:
+testsuite libstdc++ 9.1.0 delta analysis of Infineon Instruction Set Simulator vs. qemu-system-tricore
+fix from 2) is successfull
+
+Confidence Level for bugfix high.
+Is according to spec. and in line with reference Instruction Set Simulator from Infineon.
+
+Motivation
+Reexecution of gcc/g++/libstdc++ testsuites with qemu
+
+I honor the implementation work which was done by bkoppelmann, vo_lumit@gmx.de