File: trunc-weird-user.ll

package info (click to toggle)
llvm-toolchain-19 1%3A19.1.7-3~deb12u1
  • links: PTS, VCS
  • area: main
  • in suites: bookworm-proposed-updates
  • size: 1,998,492 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 (36 lines) | stat: -rw-r--r-- 995 bytes parent folder | download | duplicates (8) 
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 -passes='require<profile-summary>,function(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 ptr @test_merge_PR21548(i32 %a, ptr %p1, ptr %p2, ptr %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 ptr to determine
  ; whether the select user of the trunc was legal. This asserted.

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

BB3:
  ret ptr %p3
}