[llvm] r352945 - [AutoUpgrade] Fix AutoUpgrade for x86.seh.recoverfp

[Hans Wennborg via llvm-commits]

Merged to 8.0 in r353159.

On Mon, Feb 4, 2019 at 11:01 AM Mandeep Singh Grang via llvm-commits
<llvm-commits at lists.llvm.org> wrote:
>
> Author: mgrang
> Date: Fri Feb  1 17:32:48 2019
> New Revision: 352945
>
> URL: http://llvm.org/viewvc/llvm-project?rev=352945&view=rev
> Log:
> [AutoUpgrade] Fix AutoUpgrade for x86.seh.recoverfp
>
> Summary: This fixes the bug in https://reviews.llvm.org/D56747#inline-502711.
>
> Reviewers: efriedma
>
> Reviewed By: efriedma
>
> Subscribers: javed.absar, llvm-commits
>
> Tags: #llvm
>
> Differential Revision: https://reviews.llvm.org/D57614
>
> Added:
>     llvm/trunk/test/CodeGen/AArch64/eh_recoverfp.ll
> Modified:
>     llvm/trunk/lib/IR/AutoUpgrade.cpp
>
> Modified: llvm/trunk/lib/IR/AutoUpgrade.cpp
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/IR/AutoUpgrade.cpp?rev=352945&r1=352944&r2=352945&view=diff
> ==============================================================================
> --- llvm/trunk/lib/IR/AutoUpgrade.cpp (original)
> +++ llvm/trunk/lib/IR/AutoUpgrade.cpp Fri Feb  1 17:32:48 2019
> @@ -482,6 +482,11 @@ static bool UpgradeX86IntrinsicFunction(
>      }
>    }
>
> +  if (Name == "seh.recoverfp") {
> +    NewFn = Intrinsic::getDeclaration(F->getParent(), Intrinsic::eh_recoverfp);
> +    return true;
> +  }
> +
>    return false;
>  }
>
> @@ -557,10 +562,6 @@ static bool UpgradeIntrinsicFunction1(Fu
>        NewFn = Intrinsic::getDeclaration(F->getParent(), Intrinsic::thread_pointer);
>        return true;
>      }
> -    if (Name == "x86.seh.recoverfp") {
> -      NewFn = Intrinsic::getDeclaration(F->getParent(), Intrinsic::eh_recoverfp);
> -      return true;
> -    }
>      break;
>    }
>
>
> Added: llvm/trunk/test/CodeGen/AArch64/eh_recoverfp.ll
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/AArch64/eh_recoverfp.ll?rev=352945&view=auto
> ==============================================================================
> --- llvm/trunk/test/CodeGen/AArch64/eh_recoverfp.ll (added)
> +++ llvm/trunk/test/CodeGen/AArch64/eh_recoverfp.ll Fri Feb  1 17:32:48 2019
> @@ -0,0 +1,11 @@
> +; RUN: llc -mtriple arm64-windows %s -o - 2>&1 | FileCheck %s
> +
> +define i8* @foo(i8* %a) {
> +; CHECK-LABEL: foo
> +; CHECK-NOT: llvm.x86.seh.recoverfp
> +  %1 = call i8* @llvm.x86.seh.recoverfp(i8* bitcast (i32 ()* @f to i8*), i8* %a)
> +  ret i8* %1
> +}
> +
> +declare i8* @llvm.x86.seh.recoverfp(i8*, i8*)
> +declare i32 @f()
>
>
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