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Power4 should treat mftb as extended mfspr mnemonic

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On further reading of ISA manual it appears gas should have been
treating mftb and mftbu as extended mnemonics for mfspr, for ISA 2.03
and later.

opcodes/
	* ppc-opc.c (powerpc_opcodes): Make mftb* generate mfspr for
	power4 and later.
gas/testsuite/
	* gas/ppc/a2.d: Update for mftb change.
	* gas/ppc/476.d: Likewise.
This commit is contained in:
Alan Modra 2014-11-29 19:13:17 +10:30
parent 7b20f09964
commit db76a70026
5 changed files with 19 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
gas/testsuite/ChangeLog
View File

@ -1,3 +1,8 @@
2014-11-30 Alan Modra <amodra@gmail.com>
* gas/ppc/a2.d: Update for mftb change.
* gas/ppc/476.d: Likewise.
2014-11-28 Sandra Loosemore <sandra@codesourcery.com>
* gas/nios2/nios2.exp: Make "movi" a list test.

2
gas/testsuite/gas/ppc/476.d
View File

@ -308,7 +308,7 @@ Disassembly of section \.text:
4a8: (7e 60 00 a6|a6 00 60 7e) mfmsr r19
4ac: (7c 78 00 26|26 00 78 7c) mfocrf r3,128
4b0: (7c 60 22 a6|a6 22 60 7c) mfspr r3,128
4b4: (7c 6c 42 e6|e6 42 6c 7c) mftbl r3
4b4: (7c 6c 42 a6|a6 42 6c 7c) mftb r3
4b8: (7c 00 04 ac|ac 04 00 7c) msync
4bc: (7c 78 01 20|20 01 78 7c) mtocrf 128,r3
4c0: (7c 6f f1 20|20 f1 6f 7c) mtcr r3

4
gas/testsuite/gas/ppc/a2.d
View File

@ -360,8 +360,8 @@ Disassembly of section \.text:
530: (7c 70 10 26|26 10 70 7c) mfocrf r3,1
534: (7c 78 00 26|26 00 78 7c) mfocrf r3,128
538: (7d 4a 3a a6|a6 3a 4a 7d) mfspr r10,234
53c: (7d 4c 42 e6|e6 42 4c 7d) mftbl r10
540: (7d 4d 42 e6|e6 42 4d 7d) mftbu r10
53c: (7d 4c 42 a6|a6 42 4c 7d) mftb r10
540: (7d 4d 42 a6|a6 42 4d 7d) mftbu r10
544: (7c 00 51 dc|dc 51 00 7c) msgclr r10
548: (7c 00 51 9c|9c 51 00 7c) msgsnd r10
54c: (7c 60 01 20|20 01 60 7c) mtcrf 0,r3

5
opcodes/ChangeLog
View File

@ -1,3 +1,8 @@
2014-11-30 Alan Modra <amodra@gmail.com>
* ppc-opc.c (powerpc_opcodes): Make mftb* generate mfspr for
power4 and later.
2014-11-28 Sandra Loosemore <sandra@codesourcery.com>
* nios2-opc.c (nios2_r1_opcodes): Remove deleted attributes

12
opcodes/ppc-opc.c
View File

@ -4880,9 +4880,9 @@ const struct powerpc_opcode powerpc_opcodes[] = {
{"mfsprg5", XSPR(31,339,261), XSPR_MASK, PPC405|BOOKE|PPCVLE, PPCNONE, {RT}},
{"mfsprg6", XSPR(31,339,262), XSPR_MASK, PPC405|BOOKE|PPCVLE, PPCNONE, {RT}},
{"mfsprg7", XSPR(31,339,263), XSPR_MASK, PPC405|BOOKE|PPCVLE, PPCNONE, {RT}},
{"mftb", XSPR(31,339,268), XSPR_MASK, BOOKE|PPCVLE, PPCNONE, {RT}},
{"mftbl", XSPR(31,339,268), XSPR_MASK, BOOKE|PPCVLE, PPCNONE, {RT}},
{"mftbu", XSPR(31,339,269), XSPR_MASK, BOOKE|PPCVLE, PPCNONE, {RT}},
{"mftbu", XSPR(31,339,269), XSPR_MASK, POWER4|BOOKE|PPCVLE, PPCNONE, {RT}},
{"mftb", X(31,339), X_MASK, POWER4|BOOKE|PPCVLE, PPCNONE, {RT, TBR}},
{"mftbl", XSPR(31,339,268), XSPR_MASK, POWER4|BOOKE|PPCVLE, PPCNONE, {RT}},
{"mfsprg0", XSPR(31,339,272), XSPR_MASK, PPC|PPCVLE, PPCNONE, {RT}},
{"mfsprg1", XSPR(31,339,273), XSPR_MASK, PPC|PPCVLE, PPCNONE, {RT}},
{"mfsprg2", XSPR(31,339,274), XSPR_MASK, PPC|PPCVLE, PPCNONE, {RT}},
@ -5051,9 +5051,9 @@ const struct powerpc_opcode powerpc_opcodes[] = {
{"tlbia", X(31,370), 0xffffffff, PPC, TITAN, {0}},
{"mftbl", XSPR(31,371,268), XSPR_MASK, PPC, NO371, {RT}},
{"mftbu", XSPR(31,371,269), XSPR_MASK, PPC, NO371, {RT}},
{"mftb", X(31,371), X_MASK, PPC|PPCA2, NO371, {RT, TBR}},
{"mftbu", XSPR(31,371,269), XSPR_MASK, PPC, NO371|POWER4, {RT}},
{"mftb", X(31,371), X_MASK, PPC, NO371|POWER4, {RT, TBR}},
{"mftbl", XSPR(31,371,268), XSPR_MASK, PPC, NO371|POWER4, {RT}},
{"lwaux", X(31,373), X_MASK, PPC64|PPCVLE, PPCNONE, {RT, RAL, RB}},