Imported Upstream version 5.18.0.167

Former-commit-id: 289509151e0fee68a1b591a20c9f109c3c789d3a

external/llvm/test/Transforms/JumpThreading/indirectbr.ll

@@ -1,94 +0,0 @@
-; RUN: opt -S < %s -jump-threading | FileCheck %s
-
-; Keep block addresses alive.
-@addresses = constant [4 x i8*] [
-  i8* blockaddress(@test1, %L1), i8* blockaddress(@test1, %L2),
-  i8* blockaddress(@test2, %L1), i8* blockaddress(@test2, %L2)
-]
-
-declare void @bar()
-declare void @baz()
-
-
-
-; Check basic jump threading for indirectbr instructions.
-
-; CHECK: void @test1
-; CHECK: br i1 %tobool, label %L1, label %indirectgoto
-; CHECK-NOT: if.else:
-; CHECK: L1:
-; CHECK: indirectbr i8* %address, [label %L1, label %L2]
-define void @test1(i32 %i, i8* %address) nounwind {
-entry:
-  %rem = srem i32 %i, 2
-  %tobool = icmp ne i32 %rem, 0
-  br i1 %tobool, label %indirectgoto, label %if.else
-
-if.else:                                          ; preds = %entry
-  br label %indirectgoto
-
-L1:                                               ; preds = %indirectgoto
-  call void @bar()
-  ret void
-
-L2:                                               ; preds = %indirectgoto
-  call void @baz()
-  ret void
-
-indirectgoto:                                     ; preds = %if.else, %entry
-  %indirect.goto.dest = phi i8* [ %address, %if.else ], [ blockaddress(@test1, %L1), %entry ]
-  indirectbr i8* %indirect.goto.dest, [label %L1, label %L2]
-}
-
-
-; Check constant folding of indirectbr
-
-; CHECK: void @test2
-; CHECK: entry:
-; CHECK-NEXT: br label %L1
-; CHECK: L1:
-; CHECK-NEXT: call void @bar
-; CHECK-NEXT: ret void
-define void @test2() nounwind {
-entry:
-  indirectbr i8* blockaddress(@test2, %L1), [label %L1, label %L2]
-
-L1:                                               ; preds = %indirectgoto
-  call void @bar()
-  ret void
-
-L2:                                               ; preds = %indirectgoto
-  call void @baz()
-  ret void
-}
-
-
-; PR4151
-; Don't merge address-taken blocks.
-@.str = private unnamed_addr constant [4 x i8] c"%p\0A\00"
-
-; CHECK-LABEL: @test3(
-; CHECK: __here:
-; CHECK: blockaddress(@test3, %__here)
-; CHECK: __here1:
-; CHECK: blockaddress(@test3, %__here1)
-; CHECK: __here3:
-; CHECK: blockaddress(@test3, %__here3)
-define void @test3() nounwind ssp noredzone {
-entry:
-  br label %__here
-
-__here:                                           ; preds = %entry
-  %call = call i32 (...) @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i64 ptrtoint (i8* blockaddress(@test3, %__here) to i64)) nounwind noredzone
-  br label %__here1
-
-__here1:                                          ; preds = %__here
-  %call2 = call i32 (...) @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i64 ptrtoint (i8* blockaddress(@test3, %__here1) to i64)) nounwind noredzone
-  br label %__here3
-
-__here3:                                          ; preds = %__here1
-  %call4 = call i32 (...) @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i64 ptrtoint (i8* blockaddress(@test3, %__here3) to i64)) nounwind noredzone
-  ret void
-}
-
-declare i32 @printf(...) noredzone