llvm-project/llvm/test/MC/X86/cfi-open-within-another-cra...

# Test for D51695 ensuring there is no crash when two .cfi_startproc are opened
# without the first one being closed.

# RUN: not llvm-mc %s -filetype=obj -triple=x86_64-unknown-linux -o /dev/null 2>&1 | FileCheck %s

.text
.globl proc_one
proc_one:
 .cfi_startproc
 
.text
.globl proc_two
proc_two:
 .cfi_startproc
 
 .cfi_endproc

# CHECK: error: starting new .cfi frame before finishing the previous one
[MC][DWARF][AsmParser] Ensure nested CFI frames are diagnosed. This avoids a crash (with asserts) or bad codegen (without asserts) in Dwarf streamer later on. This patch fixes this condition in MCStreamer and propogates SMLoc down when it's available with an added bonus of source locations for those specific types of errors. Further patches could use similar improvements as currently most non-Windows CFI directives lack an SMLoc parameter. Modified an existing test to verify source location propogation and added an object-file version of it to verify that it does not crash in addition to a standalone test to only ensure it does not crash. Differential Revision: https://reviews.llvm.org/D51695 llvm-svn: 344781 2018-10-19 20:14:30 +08:00			`# Test for D51695 ensuring there is no crash when two .cfi_startproc are opened`
			`# without the first one being closed.`

			`# RUN: not llvm-mc %s -filetype=obj -triple=x86_64-unknown-linux -o /dev/null 2>&1 \| FileCheck %s`

			`.text`
			`.globl proc_one`
			`proc_one:`
			`.cfi_startproc`

			`.text`
			`.globl proc_two`
			`proc_two:`
			`.cfi_startproc`

			`.cfi_endproc`

			`# CHECK: error: starting new .cfi frame before finishing the previous one`