mirror of
https://github.com/RPCS3/llvm.git
synced 2024-11-29 06:30:30 +00:00
8c20ec54d9
Limit the folding of any_ext and sext into the load operation to scalars. Limit the active-bits trunc optimization to scalars. Document vector trunc and vector sext in LangRef. Similar to commit 126080 (for enabling zext). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126424 91177308-0d34-0410-b5e6-96231b3b80d8
78 lines
1.9 KiB
LLVM
78 lines
1.9 KiB
LLVM
; RUN: llc < %s -march=x86-64
|
|
; PR 9267
|
|
|
|
define<4 x i16> @func_16_32() {
|
|
%F = load <4 x i32>* undef
|
|
%G = trunc <4 x i32> %F to <4 x i16>
|
|
%H = load <4 x i32>* undef
|
|
%Y = trunc <4 x i32> %H to <4 x i16>
|
|
%T = add <4 x i16> %Y, %G
|
|
store <4 x i16>%T , <4 x i16>* undef
|
|
ret <4 x i16> %T
|
|
}
|
|
|
|
define<4 x i16> @func_16_64() {
|
|
%F = load <4 x i64>* undef
|
|
%G = trunc <4 x i64> %F to <4 x i16>
|
|
%H = load <4 x i64>* undef
|
|
%Y = trunc <4 x i64> %H to <4 x i16>
|
|
%T = xor <4 x i16> %Y, %G
|
|
store <4 x i16>%T , <4 x i16>* undef
|
|
ret <4 x i16> %T
|
|
}
|
|
|
|
define<4 x i32> @func_32_64() {
|
|
%F = load <4 x i64>* undef
|
|
%G = trunc <4 x i64> %F to <4 x i32>
|
|
%H = load <4 x i64>* undef
|
|
%Y = trunc <4 x i64> %H to <4 x i32>
|
|
%T = or <4 x i32> %Y, %G
|
|
ret <4 x i32> %T
|
|
}
|
|
|
|
define<4 x i8> @func_8_16() {
|
|
%F = load <4 x i16>* undef
|
|
%G = trunc <4 x i16> %F to <4 x i8>
|
|
%H = load <4 x i16>* undef
|
|
%Y = trunc <4 x i16> %H to <4 x i8>
|
|
%T = add <4 x i8> %Y, %G
|
|
ret <4 x i8> %T
|
|
}
|
|
|
|
define<4 x i8> @func_8_32() {
|
|
%F = load <4 x i32>* undef
|
|
%G = trunc <4 x i32> %F to <4 x i8>
|
|
%H = load <4 x i32>* undef
|
|
%Y = trunc <4 x i32> %H to <4 x i8>
|
|
%T = sub <4 x i8> %Y, %G
|
|
ret <4 x i8> %T
|
|
}
|
|
|
|
define<4 x i8> @func_8_64() {
|
|
%F = load <4 x i64>* undef
|
|
%G = trunc <4 x i64> %F to <4 x i8>
|
|
%H = load <4 x i64>* undef
|
|
%Y = trunc <4 x i64> %H to <4 x i8>
|
|
%T = add <4 x i8> %Y, %G
|
|
ret <4 x i8> %T
|
|
}
|
|
|
|
define<4 x i16> @const_16_32() {
|
|
%G = trunc <4 x i32> <i32 0, i32 3, i32 8, i32 7> to <4 x i16>
|
|
ret <4 x i16> %G
|
|
}
|
|
|
|
define<4 x i16> @const_16_64() {
|
|
%G = trunc <4 x i64> <i64 0, i64 3, i64 8, i64 7> to <4 x i16>
|
|
ret <4 x i16> %G
|
|
}
|
|
|
|
define void @bugOnTruncBitwidthReduce() nounwind {
|
|
meh:
|
|
%0 = xor <4 x i64> zeroinitializer, zeroinitializer
|
|
%1 = trunc <4 x i64> %0 to <4 x i32>
|
|
%2 = lshr <4 x i32> %1, <i32 18, i32 18, i32 18, i32 18>
|
|
%3 = xor <4 x i32> %2, %1
|
|
ret void
|
|
}
|