[LoongArch] Pre-commit test for lib call auguments extension

Reviewed By: SixWeining

Pull Request: #92374

Author: wangleiat

llvm/test/CodeGen/LoongArch/libcall-extend.ll

@@ -0,0 +1,48 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 4
+; RUN: llc --mtriple=loongarch64 --target-abi=lp64s --mattr=-f < %s | FileCheck %s
+
+define signext i32 @convert_float_to_i32(i32 %tmp, float %a) nounwind {
+; CHECK-LABEL: convert_float_to_i32:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    addi.d $sp, $sp, -16
+; CHECK-NEXT:    st.d $ra, $sp, 8 # 8-byte Folded Spill
+; CHECK-NEXT:    bstrpick.d $a0, $a1, 31, 0
+; CHECK-NEXT:    bl %plt(__fixsfsi)
+; CHECK-NEXT:    addi.w $a0, $a0, 0
+; CHECK-NEXT:    ld.d $ra, $sp, 8 # 8-byte Folded Reload
+; CHECK-NEXT:    addi.d $sp, $sp, 16
+; CHECK-NEXT:    ret
+  %1 = fptosi float %a to i32
+  ret i32 %1
+}
+
+define signext i32 @convert_double_to_i32(i32 %tmp, double %a) nounwind {
+; CHECK-LABEL: convert_double_to_i32:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    addi.d $sp, $sp, -16
+; CHECK-NEXT:    st.d $ra, $sp, 8 # 8-byte Folded Spill
+; CHECK-NEXT:    move $a0, $a1
+; CHECK-NEXT:    bl %plt(__fixdfsi)
+; CHECK-NEXT:    addi.w $a0, $a0, 0
+; CHECK-NEXT:    ld.d $ra, $sp, 8 # 8-byte Folded Reload
+; CHECK-NEXT:    addi.d $sp, $sp, 16
+; CHECK-NEXT:    ret
+  %1 = fptosi double %a to i32
+  ret i32 %1
+}
+
+define signext i32 @convert_fp128_to_i32(i32 %tmp, fp128 %a) nounwind {
+; CHECK-LABEL: convert_fp128_to_i32:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    addi.d $sp, $sp, -16
+; CHECK-NEXT:    st.d $ra, $sp, 8 # 8-byte Folded Spill
+; CHECK-NEXT:    move $a0, $a1
+; CHECK-NEXT:    move $a1, $a2
+; CHECK-NEXT:    bl %plt(__fixtfsi)
+; CHECK-NEXT:    addi.w $a0, $a0, 0
+; CHECK-NEXT:    ld.d $ra, $sp, 8 # 8-byte Folded Reload
+; CHECK-NEXT:    addi.d $sp, $sp, 16
+; CHECK-NEXT:    ret
+  %1 = fptosi fp128 %a to i32
+  ret i32 %1
+}