mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-15 20:29:48 +00:00
08e1b756df
If the beginning of the loop was also the entry block of the function, branches were inserted to the entry block which isn't allowed. If this occurs, create a new dummy function entry block that branches to the start of the loop. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195493 91177308-0d34-0410-b5e6-96231b3b80d8
32 lines
934 B
LLVM
32 lines
934 B
LLVM
; RUN: opt -S -o - -structurizecfg < %s | FileCheck %s
|
|
|
|
; CHECK-LABEL: @no_branch_to_entry_undef(
|
|
; CHECK: entry:
|
|
; CHECK-NEXT: br label %entry.orig
|
|
define void @no_branch_to_entry_undef(i32 addrspace(1)* %out) {
|
|
entry:
|
|
br i1 undef, label %for.end, label %for.body
|
|
|
|
for.body: ; preds = %entry, %for.body
|
|
store i32 999, i32 addrspace(1)* %out, align 4
|
|
br label %for.body
|
|
|
|
for.end: ; preds = %Flow
|
|
ret void
|
|
}
|
|
|
|
; CHECK-LABEL: @no_branch_to_entry_true(
|
|
; CHECK: entry:
|
|
; CHECK-NEXT: br label %entry.orig
|
|
define void @no_branch_to_entry_true(i32 addrspace(1)* %out) {
|
|
entry:
|
|
br i1 true, label %for.end, label %for.body
|
|
|
|
for.body: ; preds = %entry, %for.body
|
|
store i32 999, i32 addrspace(1)* %out, align 4
|
|
br label %for.body
|
|
|
|
for.end: ; preds = %Flow
|
|
ret void
|
|
}
|