blob: f3f8ca3d61d678c4093add682094237d813665ab (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
|
; RUN: opt -S -instcombine < %s | FileCheck %s
; <rdar://problem/8558713>
; CHECK: @test1
define i32 @test1(i32 %a, i32 %b) nounwind ssp {
entry:
; CHECK-NOT: sext
%conv = sext i32 %a to i64
%conv2 = sext i32 %b to i64
%add = add nsw i64 %conv2, %conv
%add.off = add i64 %add, 2147483648
; CHECK: llvm.sadd.with.overflow
%0 = icmp ugt i64 %add.off, 4294967295
br i1 %0, label %if.then, label %if.end
if.then:
%call = tail call i32 (...)* @throwAnExceptionOrWhatever() nounwind
br label %if.end
if.end:
; CHECK-NOT: trunc
%conv9 = trunc i64 %add to i32
; CHECK: ret i32
ret i32 %conv9
}
declare i32 @throwAnExceptionOrWhatever(...)
|
