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| author | Matthias Braun <matze@braunis.de> | 2017-06-06 19:00:58 +0000 |
|---|---|---|
| committer | Matthias Braun <matze@braunis.de> | 2017-06-06 19:00:58 +0000 |
| commit | 8b5f9e4438ed97a4134e17ff14da419a2cc6b9d6 (patch) | |
| tree | 9b43a0fcc345cc71c91708bf3baaa510eab2f7c5 /llvm/test/CodeGen/MIR/X86/inline-asm.mir | |
| parent | 49220fb6a132a17278337f770c0de91d37d889d4 (diff) | |
| download | bcm5719-llvm-8b5f9e4438ed97a4134e17ff14da419a2cc6b9d6.tar.gz bcm5719-llvm-8b5f9e4438ed97a4134e17ff14da419a2cc6b9d6.zip | |
MIRPrinter: Avoid assert() when printing empty INLINEASM strings.
CodeGen uses MO_ExternalSymbol to represent the inline assembly strings.
Empty strings for symbol names appear to be invalid. For now just
special case the output code to avoid hitting an `assert()` in
`printLLVMNameWithoutPrefix()`.
This fixes https://llvm.org/PR33317
llvm-svn: 304815
Diffstat (limited to 'llvm/test/CodeGen/MIR/X86/inline-asm.mir')
| -rw-r--r-- | llvm/test/CodeGen/MIR/X86/inline-asm.mir | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/MIR/X86/inline-asm.mir b/llvm/test/CodeGen/MIR/X86/inline-asm.mir new file mode 100644 index 00000000000..be96517144b --- /dev/null +++ b/llvm/test/CodeGen/MIR/X86/inline-asm.mir @@ -0,0 +1,12 @@ +# RUN: llc -o - %s -mtriple=x86_64-- -run-pass none | FileCheck %s +--- +# Avoid crash/assert when using an emptystring in an INLINEASM. +# CHECK-LABEL: name: emptystring +# CHECK: bb.0: +# CHECK: INLINEASM $"", 1 +# CHECK: RET 0 +name: emptystring +body: | + bb.0: + INLINEASM $"", 1 + RET 0 |
