Imported Upstream version 6.0.0.172

Former-commit-id: f3cc9b82f3e5bd8f0fd3ebc098f789556b44e9cd

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
+}