[all-commits] [llvm/llvm-project] 523660: Allow output constraints on "asm goto"

[Bill Wendling via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 52366088a8e42c2f1e96e8430b84b8b65ec3f7bc
      https://github.com/llvm/llvm-project/commit/52366088a8e42c2f1e96e8430b84b8b65ec3f7bc
  Author: Bill Wendling <morbo at google.com>
  Date:   2020-01-07 (Tue, 07 Jan 2020)

  Changed paths:
    M llvm/docs/LangRef.rst
    M llvm/include/llvm/CodeGen/MachineBasicBlock.h
    M llvm/lib/AsmParser/LLParser.cpp
    M llvm/lib/CodeGen/MachineBasicBlock.cpp
    M llvm/lib/CodeGen/MachineVerifier.cpp
    M llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
    M llvm/lib/IR/Verifier.cpp
    M llvm/test/CodeGen/X86/callbr-asm-outputs.ll
    M llvm/test/CodeGen/X86/callbr-asm.ll

  Log Message:
  -----------
  Allow output constraints on "asm goto"

Summary:
Remove the restrictions that preventing "asm goto" from returning non-void
values. The values returned by "asm goto" are only valid on the "fallthrough"
path.

Reviewers: jyknight, nickdesaulniers, hfinkel

Reviewed By: jyknight, nickdesaulniers

Subscribers: rsmith, hiraditya, llvm-commits, cfe-commits, craig.topper, rnk

Tags: #clang, #llvm

Differential Revision: https://reviews.llvm.org/D69876