diff options
| -rw-r--r-- | llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp | 3 | ||||
| -rw-r--r-- | llvm/test/CodeGen/AArch64/GlobalISel/fp128-legalize-crash-pr35690.mir | 44 |
2 files changed, 47 insertions, 0 deletions
diff --git a/llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp b/llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp index 87a658be4c2..a3b43c92a7f 100644 --- a/llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp +++ b/llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp @@ -835,6 +835,9 @@ LegalizerHelper::lower(MachineInstr &MI, unsigned TypeIdx, LLT Ty) { case 64: ZeroTy = Type::getDoubleTy(Ctx); break; + case 128: + ZeroTy = Type::getFP128Ty(Ctx); + break; default: llvm_unreachable("unexpected floating-point type"); } diff --git a/llvm/test/CodeGen/AArch64/GlobalISel/fp128-legalize-crash-pr35690.mir b/llvm/test/CodeGen/AArch64/GlobalISel/fp128-legalize-crash-pr35690.mir new file mode 100644 index 00000000000..47fda8f998d --- /dev/null +++ b/llvm/test/CodeGen/AArch64/GlobalISel/fp128-legalize-crash-pr35690.mir @@ -0,0 +1,44 @@ +# RUN: llc -O0 -run-pass=legalizer -global-isel -global-isel-abort=0 %s -o - | FileCheck %s +--- | + target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128" + target triple = "aarch64" + + define fp128 @x(fp128 %a) { + entry: + %a.addr = alloca fp128, align 16 + store fp128 %a, fp128* %a.addr, align 16 + %0 = load fp128, fp128* %a.addr, align 16 + %sub = fsub fp128 0xL00000000000000008000000000000000, %0 + ret fp128 %sub + } + +... +--- +name: x +alignment: 2 +exposesReturnsTwice: false +legalized: false +regBankSelected: false +selected: false +tracksRegLiveness: true +fixedStack: +stack: + - { id: 0, name: a.addr, type: default, offset: 0, size: 16, alignment: 16, + stack-id: 0, callee-saved-register: '', callee-saved-restored: true, + di-variable: '', di-expression: '', di-location: '' } +body: | + bb.1.entry: + liveins: %q0 + + ; This test just checks we don't crash on G_FNEG of FP128 types. Expect to fall + ; back until support is added for fp128. + ; CHECK: ret + %0:_(s128) = COPY %q0 + %1:_(p0) = G_FRAME_INDEX %stack.0.a.addr + G_STORE %0(s128), %1(p0) :: (store 16 into %ir.a.addr) + %2:_(s128) = G_LOAD %1(p0) :: (load 16 from %ir.a.addr) + %3:_(s128) = G_FNEG %2 + %q0 = COPY %3(s128) + RET_ReallyLR implicit %q0 + +... |
