maxjhandsome
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Releases Wiki Activity

[InstCombine] regenerate test checks, add comments; NFC 

llvm-svn: 310598
This commit is contained in:
Sanjay Patel 2017-08-10 14:51:42 +00:00
parent 47bf15c34f
commit 8dfe8e21e8
1 changed files with 23 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

36
llvm/test/Transforms/InstCombine/memcpy.ll
View File

@ -3,25 +3,35 @@
declare void @llvm.memcpy.p0i8.p0i8.i32(i8* nocapture, i8* nocapture, i32, i32, i1) nounwind
declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture, i8* nocapture, i64, i32, i1) nounwind
; Same src/dest.
define void @test1(i8* %a) {
tail call void @llvm.memcpy.p0i8.p0i8.i32(i8* %a, i8* %a, i32 100, i32 1, i1 false)
ret void
; CHECK-LABEL: define void @test1(
; CHECK-NEXT: ret void
; CHECK-LABEL: @test1(
; CHECK-NEXT: ret void
;
tail call void @llvm.memcpy.p0i8.p0i8.i32(i8* %a, i8* %a, i32 100, i32 1, i1 false)
ret void
}
; PR8267 - same src/dest, but volatile.
; PR8267
define void @test2(i8* %a) {
tail call void @llvm.memcpy.p0i8.p0i8.i32(i8* %a, i8* %a, i32 100, i32 1, i1 true)
ret void
; CHECK-LABEL: define void @test2(
; CHECK-NEXT: call void @llvm.memcpy
; CHECK-LABEL: @test2(
; CHECK-NEXT: tail call void @llvm.memcpy.p0i8.p0i8.i32(i8* %a, i8* %a, i32 100, i32 1, i1 true)
; CHECK-NEXT: ret void
;
tail call void @llvm.memcpy.p0i8.p0i8.i32(i8* %a, i8* %a, i32 100, i32 1, i1 true)
ret void
}
; 17179869184 == 0x400000000 - make sure that doesn't get truncated to 32-bit.
define void @test3(i8* %d, i8* %s) {
tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %d, i8* %s, i64 17179869184, i32 4, i1 false)
ret void
; CHECK-LABEL: define void @test3(
; CHECK-NEXT: call void @llvm.memcpy
; CHECK-LABEL: @test3(
; CHECK-NEXT: tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %d, i8* %s, i64 17179869184, i32 4, i1 false)
; CHECK-NEXT: ret void
;
tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %d, i8* %s, i64 17179869184, i32 4, i1 false)
ret void
}