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llvm-mirror/test/CodeGen/X86/cfi-inserter-verify-inconsistent-offset.mir
Craig Topper 38e5713f51 [X86] Merge the different Jcc instructions for each condition code into single instructions that store the condition code as an operand.
Summary:
This avoids needing an isel pattern for each condition code. And it removes translation switches for converting between Jcc instructions and condition codes.

Now the printer, encoder and disassembler take care of converting the immediate. We use InstAliases to handle the assembly matching. But we print using the asm string in the instruction definition. The instruction itself is marked IsCodeGenOnly=1 to hide it from the assembly parser.

Reviewers: spatel, lebedev.ri, courbet, gchatelet, RKSimon

Reviewed By: RKSimon

Subscribers: MatzeB, qcolombet, eraman, hiraditya, arphaman, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D60228

llvm-svn: 357802
2019-04-05 19:28:09 +00:00

27 lines
661 B
YAML

# RUN: not llc -o - %s -mtriple=x86_64-- -verify-cfiinstrs \
# RUN: -run-pass=cfi-instr-inserter 2>&1 | FileCheck %s
# Test that CFI verifier finds inconsistent offset between bb.end and one of
# its precedessors.
--- |
define void @inconsistentOffset() {
bb.end:
ret void
}
...
---
# CHECK: *** Inconsistent CFA register and/or offset between pred and succ ***
# CHECK: Succ: bb.end
# CHECK: LLVM ERROR: Found 1 in/out CFI information errors.
name: inconsistentOffset
body: |
bb.0:
CFI_INSTRUCTION def_cfa_offset 24
JCC_1 %bb.2, 5, implicit undef $eflags
bb.1:
CFI_INSTRUCTION def_cfa_offset 32
bb.2.bb.end:
RET 0
...