File: 2006-04-28-ShiftShiftLongLong.ll

package info (click to toggle)
llvm-toolchain-19 1%3A19.1.7-3
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 1,998,520 kB
  • sloc: cpp: 6,951,680; ansic: 1,486,157; asm: 913,598; python: 232,024; f90: 80,126; objc: 75,281; lisp: 37,276; pascal: 16,990; sh: 10,009; ml: 5,058; perl: 4,724; awk: 3,523; makefile: 3,167; javascript: 2,504; xml: 892; fortran: 664; cs: 573
file content (13 lines) | stat: -rw-r--r-- 358 bytes parent folder | download | duplicates (13) 
1
2
3
4
5
6
7
8
9
10
11
12
13
 
; RUN: opt < %s -passes=instcombine -S | FileCheck %s

; This cannot be turned into a sign extending cast!

define i64 @test(i64 %X) {
        %Y = shl i64 %X, 16             ; <i64> [#uses=1]
; CHECK: %Y = shl i64 %X, 16
        %Z = ashr i64 %Y, 16            ; <i64> [#uses=1]
; CHECK: %Z = ashr exact i64 %Y, 16
        ret i64 %Z
; CHECK: ret i64 %Z
}