File: pr85066.ll

package info (click to toggle)
llvm-toolchain-20 1%3A20.1.6-1~exp1
  • links: PTS, VCS
  • area: main
  • in suites: experimental
  • size: 2,111,304 kB
  • sloc: cpp: 7,438,677; ansic: 1,393,822; asm: 1,012,926; python: 241,650; f90: 86,635; objc: 75,479; lisp: 42,144; pascal: 17,286; sh: 10,027; ml: 5,082; perl: 4,730; awk: 3,523; makefile: 3,349; javascript: 2,251; xml: 892; fortran: 672
file content (45 lines) | stat: -rw-r--r-- 1,278 bytes parent folder | download | duplicates (9)
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
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5
; RUN: llc -mtriple=powerpc64le < %s | FileCheck %s

; Tests from pr85066
define i64 @test_shl_zext_cttz(i16 %x) {
; CHECK-LABEL: test_shl_zext_cttz:
; CHECK:       # %bb.0: # %entry
; CHECK-NEXT:    oris 3, 3, 1
; CHECK-NEXT:    neg 4, 3
; CHECK-NEXT:    and 3, 3, 4
; CHECK-NEXT:    clrldi 3, 3, 32
; CHECK-NEXT:    blr
entry:
  %cttz = tail call i16 @llvm.cttz.i16(i16 %x, i1 false)
  %zext = zext i16 %cttz to i64
  %res = shl i64 1, %zext
  ret i64 %res
}

define i64 @test_shl_zext_cttz_zero_is_poison(i16 %x) {
; CHECK-LABEL: test_shl_zext_cttz_zero_is_poison:
; CHECK:       # %bb.0: # %entry
; CHECK-NEXT:    neg 4, 3
; CHECK-NEXT:    and 3, 3, 4
; CHECK-NEXT:    clrldi 3, 3, 32
; CHECK-NEXT:    blr
entry:
  %cttz = tail call i16 @llvm.cttz.i16(i16 %x, i1 true)
  %zext = zext i16 %cttz to i64
  %res = shl i64 1, %zext
  ret i64 %res
}

define i16 @test_shl_trunc_cttz(i32 %x) {
; CHECK-LABEL: test_shl_trunc_cttz:
; CHECK:       # %bb.0: # %entry
; CHECK-NEXT:    neg 4, 3
; CHECK-NEXT:    and 3, 3, 4
; CHECK-NEXT:    blr
entry:
  %cttz = tail call i32 @llvm.cttz.i32(i32 %x, i1 false)
  %trunc = trunc i32 %cttz to i16
  %res = shl i16 1, %trunc
  ret i16 %res
}