llvmbot wrote:
<!--LLVM PR SUMMARY COMMENT--> @llvm/pr-subscribers-backend-loongarch Author: None (llvmbot) <details> <summary>Changes</summary> Backport 1ca411ca451e0e86caf9207779616f32ed9fd908 Requested by: @<!-- -->wangleiat --- Full diff: https://github.com/llvm/llvm-project/pull/107948.diff 3 Files Affected: - (modified) llvm/lib/Target/LoongArch/LoongArchISelLowering.cpp (+1) - (modified) llvm/lib/Target/LoongArch/LoongArchLASXInstrInfo.td (+6) - (added) llvm/test/CodeGen/LoongArch/lasx/issue107355.ll (+35) ``````````diff diff --git a/llvm/lib/Target/LoongArch/LoongArchISelLowering.cpp b/llvm/lib/Target/LoongArch/LoongArchISelLowering.cpp index d80509cf39849e..93edafaff553ba 100644 --- a/llvm/lib/Target/LoongArch/LoongArchISelLowering.cpp +++ b/llvm/lib/Target/LoongArch/LoongArchISelLowering.cpp @@ -295,6 +295,7 @@ LoongArchTargetLowering::LoongArchTargetLowering(const TargetMachine &TM, setOperationAction(ISD::INSERT_VECTOR_ELT, VT, Custom); setOperationAction(ISD::EXTRACT_VECTOR_ELT, VT, Custom); setOperationAction(ISD::BUILD_VECTOR, VT, Custom); + setOperationAction(ISD::CONCAT_VECTORS, VT, Legal); setOperationAction(ISD::SETCC, VT, Legal); setOperationAction(ISD::VSELECT, VT, Legal); diff --git a/llvm/lib/Target/LoongArch/LoongArchLASXInstrInfo.td b/llvm/lib/Target/LoongArch/LoongArchLASXInstrInfo.td index 6f1969bf8cae05..0a220a0319bc3b 100644 --- a/llvm/lib/Target/LoongArch/LoongArchLASXInstrInfo.td +++ b/llvm/lib/Target/LoongArch/LoongArchLASXInstrInfo.td @@ -1789,6 +1789,12 @@ def : Pat<(v4i32 (fp_to_uint (v4f64 LASX256:$vj))), v4f64:$vj)), sub_128)>; +// XVPERMI_Q +foreach vt = [v32i8, v16i16, v8i32, v4i64, v8f32, v4f64] in +def : Pat<(vt (concat_vectors LSX128:$vd, LSX128:$vj)), + (XVPERMI_Q (SUBREG_TO_REG (i64 0), LSX128:$vd, sub_128), + (SUBREG_TO_REG (i64 0), LSX128:$vj, sub_128), 2)>; + } // Predicates = [HasExtLASX] /// Intrinsic pattern diff --git a/llvm/test/CodeGen/LoongArch/lasx/issue107355.ll b/llvm/test/CodeGen/LoongArch/lasx/issue107355.ll new file mode 100644 index 00000000000000..818bd4311615d3 --- /dev/null +++ b/llvm/test/CodeGen/LoongArch/lasx/issue107355.ll @@ -0,0 +1,35 @@ +; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5 +; RUN: llc --mtriple=loongarch64 --mattr=+lasx < %s | FileCheck %s + +;; Without this patch(codegen for concat_vectors), the test will hang. +@g_156 = external global [12 x i32] +@g_490 = external global i32 +@g_813 = external global i32 + +define void @foo() { +; CHECK-LABEL: foo: +; CHECK: # %bb.0: # %entry +; CHECK-NEXT: pcalau12i $a0, %got_pc_hi20(g_156) +; CHECK-NEXT: ld.d $a0, $a0, %got_pc_lo12(g_156) +; CHECK-NEXT: pcalau12i $a1, %got_pc_hi20(g_490) +; CHECK-NEXT: ld.d $a1, $a1, %got_pc_lo12(g_490) +; CHECK-NEXT: ld.w $a2, $a0, 24 +; CHECK-NEXT: pcalau12i $a3, %got_pc_hi20(g_813) +; CHECK-NEXT: ld.d $a3, $a3, %got_pc_lo12(g_813) +; CHECK-NEXT: st.w $zero, $a1, 0 +; CHECK-NEXT: st.w $a2, $a3, 0 +; CHECK-NEXT: vrepli.b $vr0, 0 +; CHECK-NEXT: vst $vr0, $a0, 32 +; CHECK-NEXT: xvpermi.q $xr0, $xr0, 2 +; CHECK-NEXT: xvst $xr0, $a0, 0 +; CHECK-NEXT: st.w $zero, $a0, 20 +; CHECK-NEXT: ret +entry: + store i32 0, ptr getelementptr inbounds (i8, ptr @g_156, i64 20), align 4 + store i32 0, ptr @g_490, align 4 + %0 = load i32, ptr getelementptr inbounds (i8, ptr @g_156, i64 24), align 4 + store i32 %0, ptr @g_813, align 4 + tail call void @llvm.memset.p0.i64(ptr @g_156, i8 0, i64 48, i1 false) + store i32 0, ptr getelementptr inbounds (i8, ptr @g_156, i64 20), align 4 + ret void +} `````````` </details> https://github.com/llvm/llvm-project/pull/107948 _______________________________________________ llvm-branch-commits mailing list llvm-branch-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-branch-commits
