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author | Artyom Skrobov <Artyom.Skrobov@arm.com> | 2014-05-29 11:34:50 +0000 |
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committer | Artyom Skrobov <Artyom.Skrobov@arm.com> | 2014-05-29 11:34:50 +0000 |
commit | 897fd5f0edd15ddfc569d3f4ff2a4bcbbb644af2 (patch) | |
tree | 4311f1f522bd06f332f060d70c0200cf16605b89 | |
parent | 684122e84ed10cde3e462ea073345f2d1b165e07 (diff) | |
download | llvm-897fd5f0edd15ddfc569d3f4ff2a4bcbbb644af2.tar.gz llvm-897fd5f0edd15ddfc569d3f4ff2a4bcbbb644af2.tar.bz2 llvm-897fd5f0edd15ddfc569d3f4ff2a4bcbbb644af2.tar.xz |
Restore getInvertedCondCode() from the phased-out backend, fixing disassembly for NV
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@209803 91177308-0d34-0410-b5e6-96231b3b80d8
-rw-r--r-- | lib/Target/AArch64/Utils/AArch64BaseInfo.h | 20 | ||||
-rw-r--r-- | test/MC/Disassembler/AArch64/basic-a64-instructions.txt | 6 |
2 files changed, 7 insertions, 19 deletions
diff --git a/lib/Target/AArch64/Utils/AArch64BaseInfo.h b/lib/Target/AArch64/Utils/AArch64BaseInfo.h index 9e4c389cc2..9d2ce21c96 100644 --- a/lib/Target/AArch64/Utils/AArch64BaseInfo.h +++ b/lib/Target/AArch64/Utils/AArch64BaseInfo.h @@ -233,23 +233,9 @@ inline static const char *getCondCodeName(CondCode Code) { } inline static CondCode getInvertedCondCode(CondCode Code) { - switch (Code) { - default: llvm_unreachable("Unknown condition code"); - case EQ: return NE; - case NE: return EQ; - case HS: return LO; - case LO: return HS; - case MI: return PL; - case PL: return MI; - case VS: return VC; - case VC: return VS; - case HI: return LS; - case LS: return HI; - case GE: return LT; - case LT: return GE; - case GT: return LE; - case LE: return GT; - } + // To reverse a condition it's necessary to only invert the low bit: + + return static_cast<CondCode>(static_cast<unsigned>(Code) ^ 0x1); } /// Given a condition code, return NZCV flags that would satisfy that condition. diff --git a/test/MC/Disassembler/AArch64/basic-a64-instructions.txt b/test/MC/Disassembler/AArch64/basic-a64-instructions.txt index 397a39eb6c..70c45c8513 100644 --- a/test/MC/Disassembler/AArch64/basic-a64-instructions.txt +++ b/test/MC/Disassembler/AArch64/basic-a64-instructions.txt @@ -965,16 +965,18 @@ # CHECK: cinv w3, w5, gt # CHECK: cinv wzr, w4, le -# CHECK: csetm w9, lt +# CHECK: csetm w9, lt # CHECK: cinv x3, x5, gt # CHECK: cinv xzr, x4, le -# CHECK: csetm x9, lt +# CHECK: csetm x9, lt +# CHECK: cinv x0, x0, nv 0xa3 0xd0 0x85 0x5a 0x9f 0xc0 0x84 0x5a 0xe9 0xa3 0x9f 0x5a 0xa3 0xd0 0x85 0xda 0x9f 0xc0 0x84 0xda 0xe9 0xa3 0x9f 0xda +0x00 0xe0 0x80 0xda # CHECK: cneg w3, w5, gt # CHECK: cneg wzr, w4, le |