diff options
| -rw-r--r-- | llvm/lib/Target/AArch64/AArch64RegisterInfo.td | 2 | ||||
| -rw-r--r-- | llvm/test/CodeGen/AArch64/concatvector-v8i8-bug.ll | 47 |
2 files changed, 48 insertions, 1 deletions
diff --git a/llvm/lib/Target/AArch64/AArch64RegisterInfo.td b/llvm/lib/Target/AArch64/AArch64RegisterInfo.td index cfc0c953bd2..9de7abdf5ff 100644 --- a/llvm/lib/Target/AArch64/AArch64RegisterInfo.td +++ b/llvm/lib/Target/AArch64/AArch64RegisterInfo.td @@ -146,7 +146,7 @@ foreach Index = 0-31 in { } -def FPR8 : RegisterClass<"AArch64", [i8, v1i8], 8, +def FPR8 : RegisterClass<"AArch64", [v1i8], 8, (sequence "B%u", 0, 31)> { } diff --git a/llvm/test/CodeGen/AArch64/concatvector-v8i8-bug.ll b/llvm/test/CodeGen/AArch64/concatvector-v8i8-bug.ll new file mode 100644 index 00000000000..f8854c3b662 --- /dev/null +++ b/llvm/test/CodeGen/AArch64/concatvector-v8i8-bug.ll @@ -0,0 +1,47 @@ +; RUN: llc < %s -verify-machineinstrs -mtriple=aarch64-none-linux-gnu -mattr=+neon +; Bug: i8 type in FRP8 register but not registering with register class causes segmentation fault. +; Fix: Removed i8 type from FPR8 register class. + +define void @test_concatvector_v8i8() { +entry.split: + br i1 undef, label %if.then, label %if.end + +if.then: ; preds = %entry.split + unreachable + +if.end: ; preds = %entry.split + br i1 undef, label %if.then9, label %if.end18 + +if.then9: ; preds = %if.end + unreachable + +if.end18: ; preds = %if.end + br label %for.body + +for.body: ; preds = %for.inc, %if.end18 + br i1 false, label %if.then30, label %for.inc + +if.then30: ; preds = %for.body + unreachable + +for.inc: ; preds = %for.body + br i1 undef, label %for.end, label %for.body + +for.end: ; preds = %for.inc + br label %for.body77 + +for.body77: ; preds = %for.body77, %for.end + br i1 undef, label %for.end106, label %for.body77 + +for.end106: ; preds = %for.body77 + br i1 undef, label %for.body130.us.us, label %stmt.for.body130.us.us + +stmt.for.body130.us.us: ; preds = %stmt.for.body130.us.us, %for.end106 + %_p_splat.us = shufflevector <1 x i8> zeroinitializer, <1 x i8> undef, <8 x i32> zeroinitializer + store <8 x i8> %_p_splat.us, <8 x i8>* undef, align 1 + br label %stmt.for.body130.us.us + +for.body130.us.us: ; preds = %for.body130.us.us, %for.end106 + br label %for.body130.us.us +} + |
