Test source: git
Source: <stdin>
----------------------------------------
@.str9 = constant 1 bytes, align 1
define i32 @_ZN9Generator6strregEPKc(* %this, * %s) {
%entry:
%__constexpr_0 = gep inbounds * @.str9, 1 x i32 0, 1 x i32 0
%s_addr.0 = select i1 0, * %__constexpr_0, * %s
%tmp122 = icmp eq * %s_addr.0, null
br label %bb184
%bb184:
%i33.0 = phi i32 [ 0, %entry ], [ %tmp183, %bb166 ]
%idx.0 = phi i32 [ 0, %entry ], [ %tmp181, %bb166 ]
%tmp49 = icmp slt i32 %i33.0, 0
br i1 %tmp49, label %bb88, label %bb55
%bb88:
br i1 %tmp122, label %bb154, label %bb128
%bb154:
br i1 0, label %bb250, label %bb166
%bb128:
%tmp138 = call i32 @strcmp(nocapture dereferenceable(1) noundef * null, nocapture dereferenceable(1) noundef * %s_addr.0) nowrite argmemonly nofree noundef nothrow willreturn
%iftmp.37.0.in4 = icmp eq i32 %tmp138, 0
br i1 %iftmp.37.0.in4, label %bb250, label %bb166
%bb250:
ret i32 %idx.0
%bb166:
%tmp175 = add i32 %idx.0, 1
%tmp177 = add i32 %tmp175, 0
%tmp181 = add i32 %tmp177, 0
%tmp183 = add i32 %i33.0, 1
br label %bb184
%bb55:
ret i32 0
}
=>
@.str9 = constant 1 bytes, align 1
define i32 @_ZN9Generator6strregEPKc(* %this, * %s) {
%entry:
%tmp122 = icmp eq * %s, null
br i1 %tmp122, label %entry.split.us, label %entry.entry.split_crit_edge
%entry.entry.split_crit_edge:
br label %entry.split
%entry.split:
br label %bb184
%bb184:
%i33.0 = phi i32 [ 0, %entry.split ], [ %tmp183, %bb166 ]
%idx.0 = phi i32 [ 0, %entry.split ], [ %tmp175, %bb166 ]
%tmp49 = icmp slt i32 %i33.0, 0
br i1 %tmp49, label %bb88, label %bb55.us-lcssa
%bb88:
br i1 0, label %bb154, label %bb128
%bb154:
br i1 0, label %bb250.us-lcssa, label %bb166
%bb128:
%tmp138 = call i32 @strcmp(nonnull nocapture dereferenceable(1) noundef * null, nonnull nocapture dereferenceable(1) noundef * %s) nowrite argmemonly nofree noundef nothrow willreturn
%iftmp.37.0.in4 = icmp eq i32 %tmp138, 0
br i1 %iftmp.37.0.in4, label %bb250.us-lcssa, label %bb166
%bb250.us-lcssa:
br label %bb250
%bb166:
%tmp175 = add i32 %idx.0, 1
%tmp183 = add i32 %i33.0, 1
br label %bb184
%bb55.us-lcssa:
br label %bb55
%entry.split.us:
br label %bb184.us
%bb184.us:
%i33.0.us = phi i32 [ 0, %entry.split.us ], [ %tmp183.us, %bb166.us ]
%tmp49.us = icmp slt i32 %i33.0.us, 0
br i1 %tmp49.us, label %bb88.us, label %bb55.us-lcssa.us
%bb88.us:
br i1 1, label %bb154.us, label %bb128.us
%bb154.us:
br i1 0, label %bb250.us-lcssa.us, label %bb166.us
%bb128.us:
br i1 undef, label %bb250.us-lcssa.us, label %bb166.us
%bb250.us-lcssa.us:
br label %bb250
%bb250:
%idx.0.lcssa1 = phi i32 [ %idx.0, %bb250.us-lcssa ], [ undef, %bb250.us-lcssa.us ]
ret i32 %idx.0.lcssa1
%bb166.us:
%tmp183.us = add i32 %i33.0.us, 1
br label %bb184.us
%bb55.us-lcssa.us:
br label %bb55
%bb55:
ret i32 0
}
Transformation doesn't verify!
ERROR: Source is more defined than target
Example:
* %this = poison
* %s = poison
Source:
* %__constexpr_0 = pointer(non-local, block_id=1, offset=0)
* %s_addr.0 = poison
i1 %tmp122 = poison
i32 %i33.0 = #x00000000 (0)
i32 %idx.0 = #x00000000 (0)
i1 %tmp49 = #x0 (0)
SOURCE MEMORY STATE
===================
NON-LOCAL BLOCKS:
Block 0 > size: 0 align: 1 alloc type: 0 address: 0
Block 1 > size: 1 align: 1 alloc type: 0 address: 2
Block 2 > size: 0 align: 2 alloc type: 0 address: 2
Block 3 > size: 3 align: 2 alloc type: 0 address: 8
Block 4 > size: 3 align: 2 alloc type: 0
Target:
i1 %tmp122 = poison
i32 %i33.0 = #x00000000 (0)
i32 %idx.0 = #x00000000 (0)
i1 %tmp49 = #x0 (0)
i32 %i33.0.us = #x00000000 (0)
i1 %tmp49.us = #x0 (0)
------------------- SMT STATS -------------------
Num queries: 3
Num invalid: 0
Num skips: 0
Num trivial: 9 (75.0%)
Num timeout: 0 (0.0%)
Num errors: 0 (0.0%)
Num SAT: 3 (100.0%)
Num UNSAT: 0 (0.0%)
Alive2: Transform doesn't verify; aborting!
+ : 'RUN: at line 1' + /home/nlopes/alive2/build/opt-alive.sh -loop-unswitch -enable-new-pm=0 -instcombine -disable-output