Index: llvm/lib/Target/AArch64/GISel/AArch64InstructionSelector.cpp =================================================================== --- llvm/lib/Target/AArch64/GISel/AArch64InstructionSelector.cpp +++ llvm/lib/Target/AArch64/GISel/AArch64InstructionSelector.cpp @@ -6839,6 +6839,7 @@ case TargetOpcode::G_BITCAST: case TargetOpcode::G_TRUNC: case TargetOpcode::G_PHI: + case TargetOpcode::G_FREEZE: return false; } } Index: llvm/test/CodeGen/AArch64/pr58431.ll =================================================================== --- /dev/null +++ llvm/test/CodeGen/AArch64/pr58431.ll @@ -0,0 +1,19 @@ +; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py +; RUN: llc < %s -mtriple=aarch64-none-linux-gnu -global-isel -global-isel-abort=0 | FileCheck %s + +define i32 @f(i64 %0) { +; CHECK-LABEL: f: +; CHECK: // %bb.0: +; CHECK-NEXT: mov w8, #10 +; CHECK-NEXT: mov w9, w0 +; CHECK-NEXT: udiv x10, x9, x8 +; CHECK-NEXT: msub x0, x10, x8, x9 +; CHECK-NEXT: // kill: def $w0 killed $w0 killed $x0 +; CHECK-NEXT: ret + %2 = trunc i64 %0 to i32 + %3 = freeze i32 %2 + %4 = zext i32 %3 to i64 + %5 = urem i64 %4, 10 + %6 = trunc i64 %5 to i32 + ret i32 %6 +}