Move load_to_switch.ll to test/CodeGen/SPARC/

Because the test invokes llc -march=sparc, it needs to be in a directory
which is only run when the sparc target is built.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164211 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 84 insertions, 0 deletions

diff --git a/test/CodeGen/SPARC/load_to_switch.ll b/test/CodeGen/SPARC/load_to_switch.ll
new file mode 100644
index 0000000000..8d62de527e
--- /dev/null
+++ b/test/CodeGen/SPARC/load_to_switch.ll
@@ -0,0 +1,84 @@
+; RUN: llc -march=sparc < %s | FileCheck %s
+
+; Check that all the switches turned into lookup tables by SimplifyCFG are
+; turned back into switches for targets that don't like lookup tables.
+
+@.str = private unnamed_addr constant [4 x i8] c"foo\00", align 1
+@.str1 = private unnamed_addr constant [4 x i8] c"bar\00", align 1
+@.str2 = private unnamed_addr constant [4 x i8] c"baz\00", align 1
+@.str3 = private unnamed_addr constant [4 x i8] c"qux\00", align 1
+@.str4 = private unnamed_addr constant [6 x i8] c"error\00", align 1
+@switch.table = private unnamed_addr constant [7 x i32] [i32 55, i32 123, i32 0, i32 -1, i32 27, i32 62, i32 1]
+@switch.table1 = private unnamed_addr constant [4 x i8] c"*\09X\05"
+@switch.table2 = private unnamed_addr constant [4 x float] [float 0x40091EB860000000, float 0x3FF3BE76C0000000, float 0x4012449BA0000000, float 0x4001AE1480000000]
+@switch.table3 = private unnamed_addr constant [4 x i8*] [i8* getelementptr inbounds ([4 x i8]* @.str, i64 0, i64 0), i8* getelementptr inbounds ([4 x i8]* @.str1, i64 0, i64 0), i8* getelementptr inbounds ([4 x i8]* @.str2, i64 0, i64 0), i8* getelementptr inbounds ([4 x i8]* @.str3, i64 0, i64 0)]
+
+define i32 @f(i32 %c)  {
+entry:
+  %switch.tableidx = sub i32 %c, 42
+  %0 = icmp ult i32 %switch.tableidx, 7
+  br i1 %0, label %switch.lookup, label %return
+
+switch.lookup:
+  %switch.gep = getelementptr inbounds [7 x i32]* @switch.table, i32 0, i32 %switch.tableidx
+  %switch.load = load i32* %switch.gep
+  ret i32 %switch.load
+
+return:
+  ret i32 15
+
+; CHECK: f:
+; CHECK: %switch.lookup
+; CHECK-NOT: sethi %hi(.Lswitch.table)
+}
+
+declare void @dummy(i8 signext, float)
+
+define void @h(i32 %x) {
+entry:
+  %switch.tableidx = sub i32 %x, 0
+  %0 = icmp ult i32 %switch.tableidx, 4
+  br i1 %0, label %switch.lookup, label %sw.epilog
+
+switch.lookup:
+  %switch.gep = getelementptr inbounds [4 x i8]* @switch.table1, i32 0, i32 %switch.tableidx
+  %switch.load = load i8* %switch.gep
+  %switch.gep1 = getelementptr inbounds [4 x float]* @switch.table2, i32 0, i32 %switch.tableidx
+  %switch.load2 = load float* %switch.gep1
+  br label %sw.epilog
+
+sw.epilog:
+  %a.0 = phi i8 [ %switch.load, %switch.lookup ], [ 7, %entry ]
+  %b.0 = phi float [ %switch.load2, %switch.lookup ], [ 0x4023FAE140000000, %entry ]
+  call void @dummy(i8 signext %a.0, float %b.0)
+  ret void
+
+; CHECK: h:
+; CHECK: %switch.lookup
+; CHECK-NOT: sethi %hi(.Lswitch.table{{[0-9]}})
+; CHECK-NOT: sethi %hi(.Lswitch.table{{[0-9]}})
+}
+
+define i8* @foostring(i32 %x) {
+entry:
+  %switch.tableidx = sub i32 %x, 0
+  %0 = icmp ult i32 %switch.tableidx, 4
+  br i1 %0, label %switch.lookup, label %return
+
+switch.lookup:
+  %switch.gep = getelementptr inbounds [4 x i8*]* @switch.table3, i32 0, i32 %switch.tableidx
+  %switch.load = load i8** %switch.gep
+  ret i8* %switch.load
+
+return:
+  ret i8* getelementptr inbounds ([6 x i8]* @.str4, i64 0, i64 0)
+
+; CHECK: foostring:
+; CHECK: %switch.lookup
+; CHECK-NOT: sethi %hi(.Lswitch.table3)
+}
+
+; CHECK-NOT: .Lswitch.table
+; CHECK-NOT: .Lswitch.table1
+; CHECK-NOT: .Lswitch.table2
+; CHECK-NOT: .Lswitch.table3