llvm-project/llvm/test/CodeGen/MIR/X86/inline-asm.mir

# 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
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 2017-06-07 03:00:58 +08:00			`# 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`