forked from OSchip/llvm-project
46 lines
1.3 KiB
LLVM
46 lines
1.3 KiB
LLVM
; RUN: llc < %s -mtriple=x86_64-linux | FileCheck %s
|
|
; RUN: llc < %s -mtriple=x86_64-win32 | FileCheck %s
|
|
|
|
; The comparison uses the pre-inc value, which could lead LSR to
|
|
; try to compute -INT64_MIN.
|
|
|
|
; CHECK: movabsq $-9223372036854775808, %rax
|
|
; CHECK: cmpq %rax,
|
|
; CHECK: sete %al
|
|
|
|
declare i64 @bar()
|
|
|
|
define i1 @foo() nounwind {
|
|
entry:
|
|
br label %for.cond.i
|
|
|
|
for.cond.i:
|
|
%indvar = phi i64 [ 0, %entry ], [ %indvar.next, %for.cond.i ]
|
|
%t = call i64 @bar()
|
|
%indvar.next = add i64 %indvar, 1
|
|
%s = icmp ne i64 %indvar.next, %t
|
|
br i1 %s, label %for.cond.i, label %__ABContainsLabel.exit
|
|
|
|
__ABContainsLabel.exit:
|
|
%cmp = icmp eq i64 %indvar, 9223372036854775807
|
|
ret i1 %cmp
|
|
}
|
|
|
|
define void @func_37() noreturn nounwind readonly {
|
|
entry:
|
|
br label %for.body
|
|
|
|
for.body: ; preds = %for.inc8, %entry
|
|
%indvar = phi i64 [ 0, %entry ], [ %indvar.next, %for.inc8 ]
|
|
%sub.i = add i64 undef, %indvar
|
|
%cmp.i = icmp eq i64 %sub.i, -9223372036854775808
|
|
br i1 undef, label %for.inc8, label %for.cond4
|
|
|
|
for.cond4: ; preds = %for.cond4, %for.body
|
|
br label %for.cond4
|
|
|
|
for.inc8: ; preds = %for.body
|
|
%indvar.next = add i64 %indvar, 1
|
|
br label %for.body
|
|
}
|