Imported Upstream version 5.18.0.225

Former-commit-id: 10196d987d5fc5564b9d3b33b1fdf13190f4d0b5

external/llvm/test/CodeGen/AArch64/sitofp-fixed-legal.ll

@@ -0,0 +1,43 @@
+; RUN: llc -mtriple=aarch64-apple-ios %s -o - | FileCheck %s
+
+define <16 x double> @test_sitofp_fixed(<16 x i32> %in) {
+; CHECK-LABEL: test_sitofp_fixed:
+
+  ; First, extend each i32 to i64
+; CHECK-DAG: sshll2.2d [[BLOCK0_HI:v[0-9]+]], v0, #0
+; CHECK-DAG: sshll2.2d [[BLOCK1_HI:v[0-9]+]], v1, #0
+; CHECK-DAG: sshll2.2d [[BLOCK2_HI:v[0-9]+]], v2, #0
+; CHECK-DAG: sshll2.2d [[BLOCK3_HI:v[0-9]+]], v3, #0
+; CHECK-DAG: sshll.2d [[BLOCK0_LO:v[0-9]+]], v0, #0
+; CHECK-DAG: sshll.2d [[BLOCK1_LO:v[0-9]+]], v1, #0
+; CHECK-DAG: sshll.2d [[BLOCK2_LO:v[0-9]+]], v2, #0
+; CHECK-DAG: sshll.2d [[BLOCK3_LO:v[0-9]+]], v3, #0
+
+  ; Next, convert each to double.
+; CHECK-DAG: scvtf.2d v0, [[BLOCK0_LO]]
+; CHECK-DAG: scvtf.2d v1, [[BLOCK0_HI]]
+; CHECK-DAG: scvtf.2d v2, [[BLOCK1_LO]]
+; CHECK-DAG: scvtf.2d v3, [[BLOCK1_HI]]
+; CHECK-DAG: scvtf.2d v4, [[BLOCK2_LO]]
+; CHECK-DAG: scvtf.2d v5, [[BLOCK2_HI]]
+; CHECK-DAG: scvtf.2d v6, [[BLOCK3_LO]]
+; CHECK-DAG: scvtf.2d v7, [[BLOCK3_HI]]
+
+; CHECK: ret
+  %flt = sitofp <16 x i32> %in to <16 x double>
+  %res = fdiv <16 x double> %flt, <double 64.0, double 64.0, double 64.0, double 64.0, double 64.0, double 64.0, double 64.0, double 64.0, double 64.0, double 64.0, double 64.0, double 64.0, double 64.0, double 64.0, double 64.0, double 64.0>
+  ret <16 x double> %res
+}
+
+; This one is small enough to satisfy isSimple, but still illegally large.
+define <4 x double> @test_sitofp_fixed_shortish(<4 x i64> %in) {
+; CHECK-LABEL: test_sitofp_fixed_shortish:
+
+; CHECK-DAG: scvtf.2d v0, v0
+; CHECK-DAG: scvtf.2d v1, v1
+
+; CHECK: ret
+  %flt = sitofp <4 x i64> %in to <4 x double>
+  %res = fdiv <4 x double> %flt, <double 64.0, double 64.0, double 64.0, double 64.0>
+  ret <4 x double> %res
+}