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

[InstCombine] Add extra shift(c1,add(c2,y)) tests for PR15141

This commit is contained in:
Simon Pilgrim 2020-01-26 17:27:53 +00:00
parent fa19d67a2a
commit f99ef5455a
1 changed files with 56 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

61
llvm/test/Transforms/InstCombine/shift-add.ll
View File

@ -5,7 +5,7 @@
define i32 @shl_C1_add_A_C2_i32(i16 %A) {
; CHECK-LABEL: @shl_C1_add_A_C2_i32(
; CHECK-NEXT: [[B:%.*]] = zext i16 %A to i32
; CHECK-NEXT: [[B:%.*]] = zext i16 [[A:%.*]] to i32
; CHECK-NEXT: [[D:%.*]] = shl i32 192, [[B]]
; CHECK-NEXT: ret i32 [[D]]
;
@ -27,7 +27,7 @@ define i32 @ashr_C1_add_A_C2_i32(i32 %A) {
define i32 @lshr_C1_add_A_C2_i32(i32 %A) {
; CHECK-LABEL: @lshr_C1_add_A_C2_i32(
; CHECK-NEXT: [[B:%.*]] = and i32 %A, 65535
; CHECK-NEXT: [[B:%.*]] = and i32 [[A:%.*]], 65535
; CHECK-NEXT: [[D:%.*]] = shl i32 192, [[B]]
; CHECK-NEXT: ret i32 [[D]]
;
@ -39,7 +39,7 @@ define i32 @lshr_C1_add_A_C2_i32(i32 %A) {
define <4 x i32> @shl_C1_add_A_C2_v4i32(<4 x i16> %A) {
; CHECK-LABEL: @shl_C1_add_A_C2_v4i32(
; CHECK-NEXT: [[B:%.*]] = zext <4 x i16> %A to <4 x i32>
; CHECK-NEXT: [[B:%.*]] = zext <4 x i16> [[A:%.*]] to <4 x i32>
; CHECK-NEXT: [[D:%.*]] = shl <4 x i32> <i32 6, i32 4, i32 undef, i32 -458752>, [[B]]
; CHECK-NEXT: ret <4 x i32> [[D]]
;
@ -51,7 +51,7 @@ define <4 x i32> @shl_C1_add_A_C2_v4i32(<4 x i16> %A) {
define <4 x i32> @ashr_C1_add_A_C2_v4i32(<4 x i32> %A) {
; CHECK-LABEL: @ashr_C1_add_A_C2_v4i32(
; CHECK-NEXT: [[B:%.*]] = and <4 x i32> %A, <i32 0, i32 15, i32 255, i32 65535>
; CHECK-NEXT: [[B:%.*]] = and <4 x i32> [[A:%.*]], <i32 0, i32 15, i32 255, i32 65535>
; CHECK-NEXT: [[D:%.*]] = ashr <4 x i32> <i32 6, i32 1, i32 undef, i32 -1>, [[B]]
; CHECK-NEXT: ret <4 x i32> [[D]]
;
@ -63,7 +63,7 @@ define <4 x i32> @ashr_C1_add_A_C2_v4i32(<4 x i32> %A) {
define <4 x i32> @lshr_C1_add_A_C2_v4i32(<4 x i32> %A) {
; CHECK-LABEL: @lshr_C1_add_A_C2_v4i32(
; CHECK-NEXT: [[B:%.*]] = and <4 x i32> %A, <i32 0, i32 15, i32 255, i32 65535>
; CHECK-NEXT: [[B:%.*]] = and <4 x i32> [[A:%.*]], <i32 0, i32 15, i32 255, i32 65535>
; CHECK-NEXT: [[D:%.*]] = lshr <4 x i32> <i32 6, i32 1, i32 undef, i32 65535>, [[B]]
; CHECK-NEXT: ret <4 x i32> [[D]]
;
@ -72,3 +72,54 @@ define <4 x i32> @lshr_C1_add_A_C2_v4i32(<4 x i32> %A) {
%D = lshr <4 x i32> <i32 6, i32 2, i32 1, i32 -7>, %C
ret <4 x i32> %D
}
define <4 x i32> @shl_C1_add_A_C2_v4i32_splat(i16 %I) {
; CHECK-LABEL: @shl_C1_add_A_C2_v4i32_splat(
; CHECK-NEXT: [[A:%.*]] = zext i16 [[I:%.*]] to i32
; CHECK-NEXT: [[B:%.*]] = insertelement <4 x i32> undef, i32 [[A]], i32 0
; CHECK-NEXT: [[C:%.*]] = shufflevector <4 x i32> [[B]], <4 x i32> undef, <4 x i32> zeroinitializer
; CHECK-NEXT: [[D:%.*]] = add <4 x i32> [[C]], <i32 0, i32 1, i32 50, i32 16>
; CHECK-NEXT: [[E:%.*]] = shl <4 x i32> <i32 6, i32 2, i32 1, i32 -7>, [[D]]
; CHECK-NEXT: ret <4 x i32> [[E]]
;
%A = zext i16 %I to i32
%B = insertelement <4 x i32> undef, i32 %A, i32 0
%C = shufflevector <4 x i32> %B, <4 x i32> undef, <4 x i32> zeroinitializer
%D = add <4 x i32> %C, <i32 0, i32 1, i32 50, i32 16>
%E = shl <4 x i32> <i32 6, i32 2, i32 1, i32 -7>, %D
ret <4 x i32> %E
}
define <4 x i32> @ashr_C1_add_A_C2_v4i32_splat(i16 %I) {
; CHECK-LABEL: @ashr_C1_add_A_C2_v4i32_splat(
; CHECK-NEXT: [[A:%.*]] = zext i16 [[I:%.*]] to i32
; CHECK-NEXT: [[B:%.*]] = insertelement <4 x i32> undef, i32 [[A]], i32 0
; CHECK-NEXT: [[C:%.*]] = shufflevector <4 x i32> [[B]], <4 x i32> undef, <4 x i32> zeroinitializer
; CHECK-NEXT: [[D:%.*]] = add <4 x i32> [[C]], <i32 0, i32 1, i32 50, i32 16>
; CHECK-NEXT: [[E:%.*]] = ashr <4 x i32> <i32 6, i32 2, i32 1, i32 -7>, [[D]]
; CHECK-NEXT: ret <4 x i32> [[E]]
;
%A = zext i16 %I to i32
%B = insertelement <4 x i32> undef, i32 %A, i32 0
%C = shufflevector <4 x i32> %B, <4 x i32> undef, <4 x i32> zeroinitializer
%D = add <4 x i32> %C, <i32 0, i32 1, i32 50, i32 16>
%E = ashr <4 x i32> <i32 6, i32 2, i32 1, i32 -7>, %D
ret <4 x i32> %E
}
define <4 x i32> @lshr_C1_add_A_C2_v4i32_splat(i16 %I) {
; CHECK-LABEL: @lshr_C1_add_A_C2_v4i32_splat(
; CHECK-NEXT: [[A:%.*]] = zext i16 [[I:%.*]] to i32
; CHECK-NEXT: [[B:%.*]] = insertelement <4 x i32> undef, i32 [[A]], i32 0
; CHECK-NEXT: [[C:%.*]] = shufflevector <4 x i32> [[B]], <4 x i32> undef, <4 x i32> zeroinitializer
; CHECK-NEXT: [[D:%.*]] = add <4 x i32> [[C]], <i32 0, i32 1, i32 50, i32 16>
; CHECK-NEXT: [[E:%.*]] = lshr <4 x i32> <i32 6, i32 2, i32 1, i32 -7>, [[D]]
; CHECK-NEXT: ret <4 x i32> [[E]]
;
%A = zext i16 %I to i32
%B = insertelement <4 x i32> undef, i32 %A, i32 0
%C = shufflevector <4 x i32> %B, <4 x i32> undef, <4 x i32> zeroinitializer
%D = add <4 x i32> %C, <i32 0, i32 1, i32 50, i32 16>
%E = lshr <4 x i32> <i32 6, i32 2, i32 1, i32 -7>, %D
ret <4 x i32> %E
}