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| author | Yingchi Long <i@lyc.dev> | 2023-12-10 18:26:22 +0800 |
|---|---|---|
| committer | Yingchi Long <i@lyc.dev> | 2023-12-10 18:33:00 +0800 |
| commit | feb2060cc29a44a53fb4eca1271e59d4caf9ff3f (patch) | |
| tree | 4344b3f97b5cf9169130934e3913d5ae0eae69b9 | |
| parent | 95e500808d96bece0edfedb70d9ecdf16c375656 (diff) | |
| download | llvm-users/inclyc/bpf-callx-asm.zip llvm-users/inclyc/bpf-callx-asm.tar.gz llvm-users/inclyc/bpf-callx-asm.tar.bz2 | |
[BPF] support indirect branch (callx) in AsmParserusers/inclyc/bpf-callx-asm
Simply mark `callx` as a valid ID, so it can be recognized.
Previously this valid asm triggers an error:
# clang local/callx.s -target bpf
local/callx.s:8:2: error: invalid register/token name
callx r1
^
| -rw-r--r-- | llvm/lib/Target/BPF/AsmParser/BPFAsmParser.cpp | 1 | ||||
| -rw-r--r-- | llvm/test/MC/BPF/callx.s | 4 |
2 files changed, 5 insertions, 0 deletions
diff --git a/llvm/lib/Target/BPF/AsmParser/BPFAsmParser.cpp b/llvm/lib/Target/BPF/AsmParser/BPFAsmParser.cpp index 90697c6..0d1eef6 100644 --- a/llvm/lib/Target/BPF/AsmParser/BPFAsmParser.cpp +++ b/llvm/lib/Target/BPF/AsmParser/BPFAsmParser.cpp @@ -229,6 +229,7 @@ public: return StringSwitch<bool>(Name.lower()) .Case("if", true) .Case("call", true) + .Case("callx", true) .Case("goto", true) .Case("gotol", true) .Case("*", true) diff --git a/llvm/test/MC/BPF/callx.s b/llvm/test/MC/BPF/callx.s new file mode 100644 index 0000000..1c53af9 --- /dev/null +++ b/llvm/test/MC/BPF/callx.s @@ -0,0 +1,4 @@ +# RUN: llvm-mc -triple bpfel -show-encoding < %s | FileCheck %s + +# CHECK: callx r1 # encoding: [0x8d,0x00,0x00,0x00,0x01,0x00,0x00,0x00] +callx r1 |