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
|
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt < %s -memcpyopt -S -enable-memcpyopt-memoryssa=0 | FileCheck %s
; RUN: opt < %s -memcpyopt -S -enable-memcpyopt-memoryssa=1 -verify-memoryssa | FileCheck %s
target datalayout = "e-m:e-i64:64-i128:128-n32:64-S128"
define void @foo(i64* nocapture %P) {
; CHECK-LABEL: @foo(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[TMP0:%.*]] = bitcast i64* [[P:%.*]] to i16*
; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i16, i16* [[TMP0]], i64 1
; CHECK-NEXT: [[TMP1:%.*]] = bitcast i16* [[ARRAYIDX]] to i32*
; CHECK-NEXT: [[ARRAYIDX1:%.*]] = getelementptr inbounds i16, i16* [[TMP0]], i64 3
; CHECK-NEXT: [[TMP2:%.*]] = bitcast i16* [[TMP0]] to i8*
; CHECK-NEXT: call void @llvm.memset.p0i8.i64(i8* align 2 [[TMP2]], i8 0, i64 8, i1 false)
; CHECK-NEXT: ret void
;
entry:
%0 = bitcast i64* %P to i16*
%arrayidx = getelementptr inbounds i16, i16* %0, i64 1
%1 = bitcast i16* %arrayidx to i32*
%arrayidx1 = getelementptr inbounds i16, i16* %0, i64 3
store i16 0, i16* %0, align 2
store i32 0, i32* %1, align 4
store i16 0, i16* %arrayidx1, align 2
ret void
}
|
