6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2024-11-01 15:11:24 +00:00
Code Issues Projects Releases Wiki Activity

Add some tests for SimplifyCFG's ConstantFoldTerminator(). NFC.

Browse Source 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@223395 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Hans Wennborg 2014-12-04 22:19:25 +00:00
parent 838e18116d
commit 8de6d3e510
1 changed files with 64 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

64
test/Transforms/SimplifyCFG/switch-to-br.ll Normal file
View File

@ -0,0 +1,64 @@
; RUN: opt %s -simplifycfg -S | FileCheck %s
declare i32 @f(i32)
define i32 @basic(i32 %x) {
; CHECK-LABEL: @basic
; CHECK-LABEL: entry:
; CHECK-NEXT: call i32 @f(i32 0)
; CHECK-NEXT: ret i32 %0
entry:
switch i32 %x, label %default [
i32 5, label %default
i32 6, label %default
i32 7, label %default
]
default:
%0 = call i32 @f(i32 0)
ret i32 %0
}
define i32 @constant() {
; CHECK-LABEL: @constant
; CHECK-LABEL: entry:
; CHECK-NEXT: call i32 @f(i32 1)
; CHECK-NEXT: ret i32 %0
entry:
switch i32 42, label %default [
i32 41, label %default
i32 42, label %a
i32 43, label %b
]
default:
%0 = call i32 @f(i32 0)
ret i32 %0
a:
%1 = call i32 @f(i32 1)
ret i32 %1
b:
%2 = call i32 @f(i32 2)
ret i32 %2
}
define i32 @unreachable(i32 %x) {
; CHECK-LABEL: @unreachable
; CHECK-LABEL: entry:
; CHECK-NEXT: call i32 @f(i32 0)
; CHECK-NEXT: ret i32 %0
entry:
switch i32 %x, label %unreachable [
i32 5, label %a
i32 6, label %a
i32 7, label %a
]
unreachable:
unreachable
a:
%0 = call i32 @f(i32 0)
ret i32 %0
}