mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-21 00:32:23 +00:00
b42c8f7101
and simplifycfg in the rare cases when it is needed. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44044 91177308-0d34-0410-b5e6-96231b3b80d8
101 lines
2.9 KiB
LLVM
101 lines
2.9 KiB
LLVM
; RUN: llvm-as < %s | opt -simplifycfg | llvm-dis | not grep bb17
|
|
; PR1786
|
|
|
|
define i32 @main() {
|
|
entry:
|
|
%retval = alloca i32, align 4 ; <i32*> [#uses=1]
|
|
%i = alloca i32, align 4 ; <i32*> [#uses=7]
|
|
%z = alloca i32, align 4 ; <i32*> [#uses=4]
|
|
%z16 = alloca i32, align 4 ; <i32*> [#uses=4]
|
|
%"alloca point" = bitcast i32 0 to i32 ; <i32> [#uses=0]
|
|
store i32 0, i32* %i
|
|
%toBool = icmp ne i8 1, 0 ; <i1> [#uses=1]
|
|
br i1 %toBool, label %cond_true, label %cond_false
|
|
|
|
cond_true: ; preds = %entry
|
|
store i32 0, i32* %z
|
|
br label %bb
|
|
|
|
bb: ; preds = %cond_next, %cond_true
|
|
%tmp = load i32* %z ; <i32> [#uses=1]
|
|
%tmp1 = sub i32 %tmp, 16384 ; <i32> [#uses=1]
|
|
store i32 %tmp1, i32* %z
|
|
%tmp2 = load i32* %i ; <i32> [#uses=1]
|
|
%tmp3 = add i32 %tmp2, 1 ; <i32> [#uses=1]
|
|
store i32 %tmp3, i32* %i
|
|
%tmp4 = load i32* %i ; <i32> [#uses=1]
|
|
%tmp5 = icmp sgt i32 %tmp4, 262144 ; <i1> [#uses=1]
|
|
%tmp56 = zext i1 %tmp5 to i8 ; <i8> [#uses=1]
|
|
%toBool7 = icmp ne i8 %tmp56, 0 ; <i1> [#uses=1]
|
|
br i1 %toBool7, label %cond_true8, label %cond_next
|
|
|
|
cond_true8: ; preds = %bb
|
|
call void @abort( )
|
|
unreachable
|
|
|
|
cond_next: ; preds = %bb
|
|
%tmp9 = load i32* %z ; <i32> [#uses=1]
|
|
%tmp10 = icmp ne i32 %tmp9, 0 ; <i1> [#uses=1]
|
|
%tmp1011 = zext i1 %tmp10 to i8 ; <i8> [#uses=1]
|
|
%toBool12 = icmp ne i8 %tmp1011, 0 ; <i1> [#uses=1]
|
|
br i1 %toBool12, label %bb, label %bb13
|
|
|
|
bb13: ; preds = %cond_next
|
|
call void @exit( i32 0 )
|
|
unreachable
|
|
|
|
cond_false: ; preds = %entry
|
|
%toBool14 = icmp ne i8 1, 0 ; <i1> [#uses=1]
|
|
br i1 %toBool14, label %cond_true15, label %cond_false33
|
|
|
|
cond_true15: ; preds = %cond_false
|
|
store i32 0, i32* %z16
|
|
br label %bb17
|
|
|
|
bb17: ; preds = %cond_next27, %cond_true15
|
|
%tmp18 = load i32* %z16 ; <i32> [#uses=1]
|
|
%tmp19 = sub i32 %tmp18, 16384 ; <i32> [#uses=1]
|
|
store i32 %tmp19, i32* %z16
|
|
%tmp20 = load i32* %i ; <i32> [#uses=1]
|
|
%tmp21 = add i32 %tmp20, 1 ; <i32> [#uses=1]
|
|
store i32 %tmp21, i32* %i
|
|
%tmp22 = load i32* %i ; <i32> [#uses=1]
|
|
%tmp23 = icmp sgt i32 %tmp22, 262144 ; <i1> [#uses=1]
|
|
%tmp2324 = zext i1 %tmp23 to i8 ; <i8> [#uses=1]
|
|
%toBool25 = icmp ne i8 %tmp2324, 0 ; <i1> [#uses=1]
|
|
br i1 %toBool25, label %cond_true26, label %cond_next27
|
|
|
|
cond_true26: ; preds = %bb17
|
|
call void @abort( )
|
|
unreachable
|
|
|
|
cond_next27: ; preds = %bb17
|
|
%tmp28 = load i32* %z16 ; <i32> [#uses=1]
|
|
%tmp29 = icmp ne i32 %tmp28, 0 ; <i1> [#uses=1]
|
|
%tmp2930 = zext i1 %tmp29 to i8 ; <i8> [#uses=1]
|
|
%toBool31 = icmp ne i8 %tmp2930, 0 ; <i1> [#uses=1]
|
|
br i1 %toBool31, label %bb17, label %bb32
|
|
|
|
bb32: ; preds = %cond_next27
|
|
call void @exit( i32 0 )
|
|
unreachable
|
|
|
|
cond_false33: ; preds = %cond_false
|
|
call void @exit( i32 0 )
|
|
unreachable
|
|
|
|
cond_next34: ; No predecessors!
|
|
br label %cond_next35
|
|
|
|
cond_next35: ; preds = %cond_next34
|
|
br label %return
|
|
|
|
return: ; preds = %cond_next35
|
|
%retval36 = load i32* %retval ; <i32> [#uses=1]
|
|
ret i32 %retval36
|
|
}
|
|
|
|
declare void @abort()
|
|
|
|
declare void @exit(i32)
|