From 2436d7803fe4e8daa53ece461202138e9eaab40c Mon Sep 17 00:00:00 2001 From: Matt Arsenault Date: Wed, 8 Aug 2018 16:58:39 +0000 Subject: [PATCH] AMDGPU: Error more gracefully on libcalls I think this is the only situation where the callsite will have a null instruction. llvm-svn: 339271 --- lib/Target/AMDGPU/SIISelLowering.cpp | 3 +++ test/CodeGen/AMDGPU/div_i128.ll | 7 +++++++ 2 files changed, 10 insertions(+) create mode 100644 test/CodeGen/AMDGPU/div_i128.ll diff --git a/lib/Target/AMDGPU/SIISelLowering.cpp b/lib/Target/AMDGPU/SIISelLowering.cpp index b76368558e9..439006e8556 100644 --- a/lib/Target/AMDGPU/SIISelLowering.cpp +++ b/lib/Target/AMDGPU/SIISelLowering.cpp @@ -2376,6 +2376,9 @@ SDValue SITargetLowering::LowerCall(CallLoweringInfo &CLI, "unsupported call to variadic function "); } + if (!CLI.CS.getInstruction()) + report_fatal_error("unsupported libcall legalization"); + if (!CLI.CS.getCalledFunction()) { return lowerUnhandledCall(CLI, InVals, "unsupported indirect call to function "); diff --git a/test/CodeGen/AMDGPU/div_i128.ll b/test/CodeGen/AMDGPU/div_i128.ll new file mode 100644 index 00000000000..7c4c88b73d3 --- /dev/null +++ b/test/CodeGen/AMDGPU/div_i128.ll @@ -0,0 +1,7 @@ +; RUN: not llc -mtriple=amdgcn-amd-amdhsa -verify-machineinstrs %s 2>&1 | FileCheck %s + +; CHECK: LLVM ERROR: unsupported libcall legalization +define i128 @v_sdiv_i128_vv(i128 %lhs, i128 %rhs) { + %shl = sdiv i128 %lhs, %rhs + ret i128 %shl +}