mirror of
https://github.com/RPCS3/llvm.git
synced 2024-12-06 10:58:04 +00:00
c131793904
shift constant expressions, and add support for folding vector shift constant expressions. This fixes PR3802. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67010 91177308-0d34-0410-b5e6-96231b3b80d8
33 lines
1.0 KiB
LLVM
33 lines
1.0 KiB
LLVM
; RUN: llvm-as < %s | llvm-dis | llvm-as | llvm-dis | grep shl | count 1
|
|
; RUN: llvm-as < %s | llvm-dis | llvm-as | llvm-dis | grep ashr | count 1
|
|
; RUN: llvm-as < %s | llvm-dis | llvm-as | llvm-dis | grep lshr | count 1
|
|
|
|
define <4 x i32> @foo(<4 x i32> %a, <4 x i32> %b) nounwind {
|
|
entry:
|
|
%cmp = shl <4 x i32> %a, %b ; <4 x i32> [#uses=1]
|
|
ret <4 x i32> %cmp
|
|
}
|
|
|
|
define <4 x i32> @bar(<4 x i32> %a, <4 x i32> %b) nounwind {
|
|
entry:
|
|
%cmp = lshr <4 x i32> %a, %b ; <4 x i32> [#uses=1]
|
|
ret <4 x i32> %cmp
|
|
}
|
|
|
|
define <4 x i32> @baz(<4 x i32> %a, <4 x i32> %b) nounwind {
|
|
entry:
|
|
%cmp = ashr <4 x i32> %a, %b ; <4 x i32> [#uses=1]
|
|
ret <4 x i32> %cmp
|
|
}
|
|
|
|
; Constant expressions: these should be folded.
|
|
define <2 x i64> @foo_ce() nounwind {
|
|
ret <2 x i64> shl (<2 x i64> <i64 5, i64 6>, <2 x i64> <i64 3, i64 5>)
|
|
}
|
|
define <2 x i64> @bar_ce() nounwind {
|
|
ret <2 x i64> lshr (<2 x i64> <i64 340, i64 380>, <2 x i64> <i64 3, i64 5>)
|
|
}
|
|
define <2 x i64> @baz_ce() nounwind {
|
|
ret <2 x i64> ashr (<2 x i64> <i64 573, i64 411>, <2 x i64> <i64 3, i64 5>)
|
|
}
|