mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-15 04:30:12 +00:00
d3fa093dc9
v2: continue iterating through the rest of the bb
use for loop
v3: initialize FlattenCFG pass in ScalarOps
add test
v4: split off initializing flattencfg to a separate patch
add comment
Signed-off-by: Jan Vesely <jan.vesely@rutgers.edu>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@215574 91177308-0d34-0410-b5e6-96231b3b80d8
27 lines
710 B
LLVM
27 lines
710 B
LLVM
; RUN: opt -flattencfg -S < %s | FileCheck %s
|
|
|
|
|
|
; This test checks whether the pass completes without a crash.
|
|
; The code is not transformed in any way
|
|
;
|
|
; CHECK-LABEL: @test_not_crash
|
|
define void @test_not_crash(i32 %in_a) #0 {
|
|
entry:
|
|
%cmp0 = icmp eq i32 %in_a, -1
|
|
%cmp1 = icmp ne i32 %in_a, 0
|
|
%cond0 = and i1 %cmp0, %cmp1
|
|
br i1 %cond0, label %b0, label %b1
|
|
|
|
b0: ; preds = %entry
|
|
%cmp2 = icmp eq i32 %in_a, 0
|
|
%cmp3 = icmp ne i32 %in_a, 1
|
|
%cond1 = or i1 %cmp2, %cmp3
|
|
br i1 %cond1, label %exit, label %b1
|
|
|
|
b1: ; preds = %entry, %b0
|
|
br label %exit
|
|
|
|
exit: ; preds = %entry, %b0, %b1
|
|
ret void
|
|
}
|