mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-07-21 18:29:45 +00:00
9753f0b9b4
For example: %1 = lshr i32 %x, 2 %2 = udiv i32 %1, 100 rdar://12182093 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162743 91177308-0d34-0410-b5e6-96231b3b80d8
21 lines
490 B
LLVM
21 lines
490 B
LLVM
; RUN: opt < %s -instcombine -S > %t1.ll
|
|
; RUN: grep udiv %t1.ll | count 2
|
|
; RUN: grep zext %t1.ll | count 2
|
|
; PR2274
|
|
|
|
; The udiv instructions shouldn't be optimized away, and the
|
|
; sext instructions should be optimized to zext.
|
|
|
|
define i64 @bar(i32 %x, i32 %g) nounwind {
|
|
%y = lshr i32 %x, 30
|
|
%r = udiv i32 %y, %g
|
|
%z = sext i32 %r to i64
|
|
ret i64 %z
|
|
}
|
|
define i64 @qux(i32 %x, i32 %v) nounwind {
|
|
%y = lshr i32 %x, 31
|
|
%r = udiv i32 %y, %v
|
|
%z = sext i32 %r to i64
|
|
ret i64 %z
|
|
}
|