mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-26 12:43:36 +01:00
495950222a
First step after e1133179587dd895962a2fe4d6eb0cb1e63b5ee2, in these tests, DomTree is valid afterwards, so mark them as such, so that they don't regress. In further steps, SimplifyCFG transforms shall taught to preserve DomTree, in as small steps as possible.
58 lines
2.7 KiB
LLVM
58 lines
2.7 KiB
LLVM
; RUN: opt < %s -simplifycfg -simplifycfg-require-and-preserve-domtree=1 -S | FileCheck %s
|
|
|
|
; CHECK-NOT: switch
|
|
%llvm.dbg.anchor.type = type { i32, i32 }
|
|
%llvm.dbg.compile_unit.type = type { i32, { }*, i32, i8*, i8*, i8*, i1, i1, i8* }
|
|
|
|
@llvm.dbg.compile_units = linkonce constant %llvm.dbg.anchor.type { i32 458752, i32 17 }, section "llvm.metadata"
|
|
|
|
@.str = internal constant [4 x i8] c"a.c\00", section "llvm.metadata" ; <[4 x i8]*> [#uses=1]
|
|
@.str1 = internal constant [6 x i8] c"/tmp/\00", section "llvm.metadata" ; <[6 x i8]*> [#uses=1]
|
|
@.str2 = internal constant [55 x i8] c"4.2.1 (Based on Apple Inc. build 5636) (LLVM build 00)\00", section "llvm.metadata" ; <[55 x i8]*> [#uses=1]
|
|
@llvm.dbg.compile_unit = internal constant %llvm.dbg.compile_unit.type { i32 458769, { }* bitcast (%llvm.dbg.anchor.type* @llvm.dbg.compile_units to { }*), i32 1, i8* getelementptr ([4 x i8], [4 x i8]* @.str, i32 0, i32 0), i8* getelementptr ([6 x i8], [6 x i8]* @.str1, i32 0, i32 0), i8* getelementptr ([55 x i8], [55 x i8]* @.str2, i32 0, i32 0), i1 true, i1 false, i8* null }, section "llvm.metadata" ; <%llvm.dbg.compile_unit.type*> [#uses=1]
|
|
|
|
declare void @llvm.dbg.stoppoint(i32, i32, { }*) nounwind
|
|
|
|
; Test folding all to same dest
|
|
define i32 @test3(i1 %C) {
|
|
br i1 %C, label %Start, label %TheDest
|
|
Start: ; preds = %0
|
|
call void @llvm.dbg.stoppoint(i32 5, i32 0, { }* bitcast (%llvm.dbg.compile_unit.type* @llvm.dbg.compile_unit to { }*))
|
|
switch i32 3, label %TheDest [
|
|
i32 0, label %TheDest
|
|
i32 1, label %TheDest
|
|
i32 2, label %TheDest
|
|
i32 5, label %TheDest
|
|
]
|
|
TheDest: ; preds = %Start, %Start, %Start, %Start, %Start, %0
|
|
ret i32 1234
|
|
}
|
|
|
|
; Test folding switch -> branch
|
|
define i32 @test4(i32 %C) {
|
|
switch i32 %C, label %L1 [
|
|
i32 0, label %L2
|
|
]
|
|
L1: ; preds = %0
|
|
call void @llvm.dbg.stoppoint(i32 5, i32 0, { }* bitcast (%llvm.dbg.compile_unit.type* @llvm.dbg.compile_unit to { }*))
|
|
ret i32 0
|
|
L2: ; preds = %0
|
|
call void @llvm.dbg.stoppoint(i32 5, i32 0, { }* bitcast (%llvm.dbg.compile_unit.type* @llvm.dbg.compile_unit to { }*))
|
|
ret i32 1
|
|
}
|
|
|
|
; Can fold into a cond branch!
|
|
define i32 @test5(i32 %C) {
|
|
switch i32 %C, label %L1 [
|
|
i32 0, label %L2
|
|
i32 123, label %L1
|
|
]
|
|
L1: ; preds = %0, %0
|
|
call void @llvm.dbg.stoppoint(i32 5, i32 0, { }* bitcast (%llvm.dbg.compile_unit.type* @llvm.dbg.compile_unit to { }*))
|
|
ret i32 0
|
|
L2: ; preds = %0
|
|
call void @llvm.dbg.stoppoint(i32 5, i32 0, { }* bitcast (%llvm.dbg.compile_unit.type* @llvm.dbg.compile_unit to { }*))
|
|
ret i32 1
|
|
}
|
|
|