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[PowerPC] Disable more extended mne on AIX 

To avoid assembler errors.

Reviewed By: sfertile

Differential Revision: https://reviews.llvm.org/D97418
This commit is contained in:
Jinsong Ji 2021-03-04 20:27:26 +00:00
parent 4d90e460bc
commit 7967221a72
3 changed files with 20 additions and 14 deletions
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4
llvm/lib/Target/PowerPC/PPCInstr64Bit.td
View File

@ -989,9 +989,9 @@ def : InstAlias<"mfxer $Rx", (MFSPR8 g8rc:$Rx, 1)>;
//Disable this alias on AIX for now because as does not support them.
let Predicates = [ModernAs] in {
def : InstAlias<"mtudscr $Rx", (MTSPR8 3, g8rc:$Rx)>;
def : InstAlias<"mfudscr $Rx", (MFSPR8 g8rc:$Rx, 3)>;
}
def : InstAlias<"mfrtcu $Rx", (MFSPR8 g8rc:$Rx, 4)>;
def : InstAlias<"mfrtcl $Rx", (MFSPR8 g8rc:$Rx, 5)>;
@ -1050,6 +1050,8 @@ def : InstAlias<"mfpvr $RT", (MFSPR8 g8rc:$RT, 287)>;
def : InstAlias<"mfspefscr $Rx", (MFSPR8 g8rc:$Rx, 512)>;
def : InstAlias<"mtspefscr $Rx", (MTSPR8 512, g8rc:$Rx)>;
}
//===----------------------------------------------------------------------===//
// Load/Store instructions.
//

14
llvm/lib/Target/PowerPC/PPCInstrInfo.td
View File

@ -4646,6 +4646,12 @@ def : InstAlias<"mftbu $Rx", (MFTB gprc:$Rx, 269)>;
def : InstAlias<"xnop", (XORI R0, R0, 0)>;
def : InstAlias<"mtxer $Rx", (MTSPR 1, gprc:$Rx)>;
def : InstAlias<"mfxer $Rx", (MFSPR gprc:$Rx, 1)>;
//Disable this alias on AIX for now because as does not support them.
let Predicates = [ModernAs] in {
foreach BR = 0-7 in {
def : InstAlias<"mfbr"#BR#" $Rx",
(MFDCR gprc:$Rx, !add(BR, 0x80))>,
@ -4657,15 +4663,8 @@ foreach BR = 0-7 in {
def : InstAlias<"mtmsrd $RS", (MTMSRD gprc:$RS, 0)>;
def : InstAlias<"mtmsr $RS", (MTMSR gprc:$RS, 0)>;
def : InstAlias<"mtxer $Rx", (MTSPR 1, gprc:$Rx)>;
def : InstAlias<"mfxer $Rx", (MFSPR gprc:$Rx, 1)>;
//Disable this alias on AIX for now because as does not support them.
let Predicates = [ModernAs] in {
def : InstAlias<"mtudscr $Rx", (MTSPR 3, gprc:$Rx)>;
def : InstAlias<"mfudscr $Rx", (MFSPR gprc:$Rx, 3)>;
}
def : InstAlias<"mfrtcu $Rx", (MFSPR gprc:$Rx, 4)>;
def : InstAlias<"mfrtcl $Rx", (MFSPR gprc:$Rx, 5)>;
@ -4795,6 +4794,7 @@ def : InstAlias<"mfdccr $Rx", (MFSPR gprc:$Rx, 1018)>, Requires<[IsPPC4xx]>;
def : InstAlias<"mticcr $Rx", (MTSPR 1019, gprc:$Rx)>, Requires<[IsPPC4xx]>;
def : InstAlias<"mficcr $Rx", (MFSPR gprc:$Rx, 1019)>, Requires<[IsPPC4xx]>;
}
def : InstAlias<"tlbie $RB", (TLBIE R0, gprc:$RB)>;

12
llvm/test/MC/Disassembler/PowerPC/ppc64-encoding-ext.txt
View File

@ -2235,16 +2235,20 @@
# CHECK: mfctr 2
0x7c 0x49 0x02 0xa6
# CHECK: mtuamr 2
# MODERN: mtuamr 2
# OLD: mtspr 13, 2
0x7c 0x4d 0x03 0xa6
# CHECK: mfuamr 2
# MODERN: mfuamr 2
# OLD: mfspr 2, 13
0x7c 0x4d 0x02 0xa6
# CHECK: mtppr 2
# MODERN: mtppr 2
# OLD: mtspr 896, 2
0x7c 0x40 0xe3 0xa6
# CHECK: mfppr 2
# MODERN: mfppr 2
# OLD: mfspr 2, 896
0x7c 0x40 0xe2 0xa6
# CHECK: nop