File: tbaa-struct2.ll

package info (click to toggle)
llvm-toolchain-15 1%3A15.0.6-4
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,554,644 kB
  • sloc: cpp: 5,922,452; ansic: 1,012,136; asm: 674,362; python: 191,568; objc: 73,855; f90: 42,327; lisp: 31,913; pascal: 11,973; javascript: 10,144; sh: 9,421; perl: 7,447; ml: 5,527; awk: 3,523; makefile: 2,520; xml: 885; cs: 573; fortran: 567
file content (45 lines) | stat: -rw-r--r-- 1,958 bytes parent folder | download
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
; RUN: opt -S -passes=sroa %s | FileCheck %s

; SROA should correctly offset `!tbaa.struct` metadata

%struct.Wishart = type { double, i32 }
declare void @llvm.memcpy.p0.p0.i64(ptr writeonly, ptr readonly, i64, i1 immarg)
declare double @subcall(double %g, i32 %m)

define double @bar(ptr %wishart) {
  %tmp = alloca %struct.Wishart, align 8
  call void @llvm.memcpy.p0.p0.i64(ptr align 8 %tmp, ptr align 8 %wishart, i64 16, i1 false), !tbaa.struct !2
  %lg = load double, ptr %tmp, align 8, !tbaa !4
  %m = getelementptr inbounds %struct.Wishart, ptr %tmp, i32 0, i32 1
  %lm = load i32, ptr %m, align 8, !tbaa !8
  %call = call double @subcall(double %lg, i32 %lm)
  ret double %call
}

!2 = !{i64 0, i64 8, !3, i64 8, i64 4, !7}
!3 = !{!4, !4, i64 0}
!4 = !{!"double", !5, i64 0}
!5 = !{!"omnipotent char", !6, i64 0}
!6 = !{!"Simple C++ TBAA"}
!7 = !{!8, !8, i64 0}
!8 = !{!"int", !5, i64 0}

; CHECK: define double @bar(ptr %wishart) {
; CHECK-NEXT:   %tmp.sroa.3 = alloca [4 x i8], align 4
; CHECK-NEXT:   %tmp.sroa.0.0.copyload = load double, ptr %wishart, align 8, !tbaa.struct !0
; CHECK-NEXT:   %tmp.sroa.2.0.wishart.sroa_idx = getelementptr inbounds i8, ptr %wishart, i64 8
; CHECK-NEXT:   %tmp.sroa.2.0.copyload = load i32, ptr %tmp.sroa.2.0.wishart.sroa_idx, align 8, !tbaa.struct !7
; CHECK-NEXT:   %tmp.sroa.3.0.wishart.sroa_idx = getelementptr inbounds i8, ptr %wishart, i64 12
; CHECK-NEXT:   call void @llvm.memcpy.p0.p0.i64(ptr align 4 %tmp.sroa.3, ptr align 4 %tmp.sroa.3.0.wishart.sroa_idx, i64 4, i1 false), !tbaa.struct !8
; CHECK-NEXT:   %call = call double @subcall(double %tmp.sroa.0.0.copyload, i32 %tmp.sroa.2.0.copyload)
; CHECK-NEXT:   ret double %call
; CHECK-NEXT: }

; CHECK: !0 = !{i64 0, i64 8, !1, i64 8, i64 4, !5}
; CHECK: !1 = !{!2, !2, i64 0}
; CHECK: !2 = !{!"double", !{{[0-9]+}}, i64 0}

; CHECK: !5 = !{!6, !6, i64 0}
; CHECK: !6 = !{!"int", !{{[0-9]+}}, i64 0}
; CHECK: !7 = !{i64 0, i64 4, !5}
; CHECK: !8 = !{}