File: store-widen-aliased-load.ll

package info (click to toggle)
llvm-toolchain-14 1%3A14.0.6-12
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,496,180 kB
  • sloc: cpp: 5,593,972; ansic: 986,872; asm: 585,869; python: 184,223; objc: 72,530; lisp: 31,119; f90: 27,793; javascript: 9,780; pascal: 9,762; sh: 9,482; perl: 7,468; ml: 5,432; awk: 3,523; makefile: 2,538; xml: 953; cs: 573; fortran: 567
file content (21 lines) | stat: -rw-r--r-- 778 bytes parent folder | download | duplicates (4) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
 
; RUN: llc -march=hexagon --combiner-store-merging=false < %s | FileCheck %s
; CHECK-NOT: memh
; Check that store widening does not merge the two stores.

target datalayout = "e-p:32:32:32-i64:64:64-i32:32:32-i16:16:16-i1:32:32-f64:64:64-f32:32:32-v64:64:64-v32:32:32-a0:0-n16:32"
target triple = "hexagon"

%struct.type_t = type { i8, i8, [2 x i8] }

define zeroext i8 @foo(%struct.type_t* nocapture %p) nounwind {
entry:
  %a = getelementptr inbounds %struct.type_t, %struct.type_t* %p, i32 0, i32 0
  store i8 0, i8* %a, align 2, !tbaa !0
  %b = getelementptr inbounds %struct.type_t, %struct.type_t* %p, i32 0, i32 1
  %0 = load i8, i8* %b, align 1, !tbaa !0
  store i8 0, i8* %b, align 1, !tbaa !0
  ret i8 %0
}

!0 = !{!"omnipotent char", !1}
!1 = !{!"Simple C/C++ TBAA"}