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authorJohnny Chen <johnny.chen@apple.com>2011-04-07 01:05:52 +0000
committerJohnny Chen <johnny.chen@apple.com>2011-04-07 01:05:52 +0000
commit8424a60fc9059d4ba7c45c80d28d86e3186fcf4e (patch)
tree7da8c9a6c6e288e784225dfb32f4c788855ce966 /lib/Target
parent2c69f8eec6a51114799e3e80fa4903c5e3fc429c (diff)
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The ARM disassembler was not recognizing USADA8 instruction. Need to add checking for register values
for USAD8 and USADA8. rdar://problem/9247060 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129047 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target')
-rw-r--r--lib/Target/ARM/Disassembler/ARMDisassemblerCore.cpp8
1 files changed, 5 insertions, 3 deletions
diff --git a/lib/Target/ARM/Disassembler/ARMDisassemblerCore.cpp b/lib/Target/ARM/Disassembler/ARMDisassemblerCore.cpp
index fd49485..48a748b 100644
--- a/lib/Target/ARM/Disassembler/ARMDisassemblerCore.cpp
+++ b/lib/Target/ARM/Disassembler/ARMDisassemblerCore.cpp
@@ -536,7 +536,7 @@ static bool BadRegsMulFrm(unsigned Opcode, uint32_t insn) {
return false;
case ARM::MLA: case ARM::MLS: case ARM::SMLABB: case ARM::SMLABT:
case ARM::SMLATB: case ARM::SMLATT: case ARM::SMLAWB: case ARM::SMLAWT:
- case ARM::SMMLA: case ARM::SMMLS:
+ case ARM::SMMLA: case ARM::SMMLS: case ARM::USADA8:
if (R19_16 == 15 || R15_12 == 15 || R11_8 == 15 || R3_0 == 15)
return true;
return false;
@@ -545,6 +545,7 @@ static bool BadRegsMulFrm(unsigned Opcode, uint32_t insn) {
case ARM::SMUAD: case ARM::SMUADX:
// A8.6.167 SMLAD & A8.6.172 SMLSD
case ARM::SMLAD: case ARM::SMLADX: case ARM::SMLSD: case ARM::SMLSDX:
+ case ARM::USAD8:
if (R19_16 == 15 || R11_8 == 15 || R3_0 == 15)
return true;
return false;
@@ -562,12 +563,13 @@ static bool BadRegsMulFrm(unsigned Opcode, uint32_t insn) {
// Multiply Instructions.
// MLA, MLS, SMLABB, SMLABT, SMLATB, SMLATT, SMLAWB, SMLAWT, SMMLA, SMMLS,
-// SMLAD, SMLADX, SMLSD, SMLSDX:
+// SMLAD, SMLADX, SMLSD, SMLSDX, USADA8 (for convenience):
// Rd{19-16} Rn{3-0} Rm{11-8} Ra{15-12}
// But note that register checking for {SMLAD, SMLADX, SMLSD, SMLSDX} is
// only for {d, n, m}.
//
-// MUL, SMMUL, SMULBB, SMULBT, SMULTB, SMULTT, SMULWB, SMULWT, SMUAD, SMUADX:
+// MUL, SMMUL, SMULBB, SMULBT, SMULTB, SMULTT, SMULWB, SMULWT, SMUAD, SMUADX,
+// USAD8 (for convenience):
// Rd{19-16} Rn{3-0} Rm{11-8}
//
// SMLAL, SMULL, UMAAL, UMLAL, UMULL, SMLALBB, SMLALBT, SMLALTB, SMLALTT,