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[InstCombine] add tests for funnel shift constant shift amount mod bitwidth; NFC 

llvm-svn: 356191
This commit is contained in:
Sanjay Patel 2019-03-14 19:22:00 +00:00
parent bb26a7eb11
commit 6e86216531
1 changed files with 36 additions and 0 deletions
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36
llvm/test/Transforms/InstCombine/fsh.ll
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@ -344,6 +344,42 @@ define <2 x i31> @fshl_constant_shift_amount_modulo_bitwidth_vec(<2 x i31> %x, <
ret <2 x i31> %r
}
define i32 @fshl_constant_shift_amount_modulo_bitwidth(i32 %x, i32 %y) {
; CHECK-LABEL: @fshl_constant_shift_amount_modulo_bitwidth(
; CHECK-NEXT: [[R:%.*]] = call i32 @llvm.fshl.i32(i32 [[X:%.*]], i32 [[Y:%.*]], i32 33)
; CHECK-NEXT: ret i32 [[R]]
;
%r = call i32 @llvm.fshl.i32(i32 %x, i32 %y, i32 33)
ret i32 %r
}
define i33 @fshr_constant_shift_amount_modulo_bitwidth(i33 %x, i33 %y) {
; CHECK-LABEL: @fshr_constant_shift_amount_modulo_bitwidth(
; CHECK-NEXT: [[R:%.*]] = call i33 @llvm.fshr.i33(i33 [[X:%.*]], i33 [[Y:%.*]], i33 34)
; CHECK-NEXT: ret i33 [[R]]
;
%r = call i33 @llvm.fshr.i33(i33 %x, i33 %y, i33 34)
ret i33 %r
}
define <2 x i32> @fshr_constant_shift_amount_modulo_bitwidth_vec(<2 x i32> %x, <2 x i32> %y) {
; CHECK-LABEL: @fshr_constant_shift_amount_modulo_bitwidth_vec(
; CHECK-NEXT: [[R:%.*]] = call <2 x i32> @llvm.fshr.v2i32(<2 x i32> [[X:%.*]], <2 x i32> [[Y:%.*]], <2 x i32> <i32 34, i32 -1>)
; CHECK-NEXT: ret <2 x i32> [[R]]
;
%r = call <2 x i32> @llvm.fshr.v2i32(<2 x i32> %x, <2 x i32> %y, <2 x i32> <i32 34, i32 -1>)
ret <2 x i32> %r
}
define <2 x i31> @fshl_constant_shift_amount_modulo_bitwidth_vec(<2 x i31> %x, <2 x i31> %y) {
; CHECK-LABEL: @fshl_constant_shift_amount_modulo_bitwidth_vec(
; CHECK-NEXT: [[R:%.*]] = call <2 x i31> @llvm.fshl.v2i31(<2 x i31> [[X:%.*]], <2 x i31> [[Y:%.*]], <2 x i31> <i31 34, i31 -1>)
; CHECK-NEXT: ret <2 x i31> [[R]]
;
%r = call <2 x i31> @llvm.fshl.v2i31(<2 x i31> %x, <2 x i31> %y, <2 x i31> <i31 34, i31 -1>)
ret <2 x i31> %r
}
; The shift modulo bitwidth is the same for all vector elements, but this is not simplified yet.
define <2 x i31> @fshl_only_op1_demanded_vec_nonsplat(<2 x i31> %x, <2 x i31> %y) {
; CHECK-LABEL: @fshl_only_op1_demanded_vec_nonsplat(