File: trunc-weird-user.ll

package info (click to toggle)
llvm-toolchain-11 1%3A11.0.1-2
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 995,808 kB
  • sloc: cpp: 4,767,656; ansic: 760,916; asm: 477,436; python: 170,940; objc: 69,804; lisp: 29,914; sh: 23,855; f90: 18,173; pascal: 7,551; perl: 7,471; ml: 5,603; awk: 3,489; makefile: 2,573; xml: 915; cs: 573; fortran: 503; javascript: 452
file content (36 lines) | stat: -rw-r--r-- 961 bytes parent folder | download | duplicates (22) 
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
 
; RUN: opt -S -codegenprepare -mtriple=arm64-apple-ios7.0 %s | FileCheck %s

%foo = type { i8 }

define %foo @test_merge(i32 %in) {
; CHECK-LABEL: @test_merge

  ; CodeGenPrepare was requesting the EVT for { i8 } to determine
  ; whether the insertvalue user of the trunc was legal. This
  ; asserted.

; CHECK: insertvalue %foo undef, i8 %byte, 0
  %lobit = lshr i32 %in, 31
  %byte = trunc i32 %lobit to i8
  %struct = insertvalue %foo undef, i8 %byte, 0
  ret %"foo" %struct
}

define i64* @test_merge_PR21548(i32 %a, i64* %p1, i64* %p2, i64* %p3) {
; CHECK-LABEL: @test_merge_PR21548
  %as = lshr i32 %a, 3
  %Tr = trunc i32 %as to i1
  br i1 %Tr, label %BB2, label %BB3

BB2:
  ; Similarly to above:
  ; CodeGenPrepare was requesting the EVT for i8* to determine
  ; whether the select user of the trunc was legal. This asserted.

; CHECK: select i1 {{%.*}}, i64* %p1, i64* %p2
  %p = select i1 %Tr, i64* %p1, i64* %p2
  ret i64* %p

BB3:
  ret i64* %p3
}