236 lines
7.5 KiB
LLVM
236 lines
7.5 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -instcombine -S | FileCheck %s
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declare i8 @llvm.fshl.i8(i8, i8, i8)
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declare i8 @llvm.fshr.i8(i8, i8, i8)
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declare <2 x i5> @llvm.fshl.v2i5(<2 x i5>, <2 x i5>, <2 x i5>)
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declare <2 x i5> @llvm.fshr.v2i5(<2 x i5>, <2 x i5>, <2 x i5>)
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declare void @use(i8)
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define i1 @rol_eq(i8 %x, i8 %y, i8 %z) {
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; CHECK-LABEL: @rol_eq(
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; CHECK-NEXT: [[R:%.*]] = icmp eq i8 [[X:%.*]], [[Y:%.*]]
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; CHECK-NEXT: ret i1 [[R]]
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;
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%f = tail call i8 @llvm.fshl.i8(i8 %x, i8 %x, i8 %z)
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%f2 = tail call i8 @llvm.fshl.i8(i8 %y, i8 %y, i8 %z)
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%r = icmp eq i8 %f, %f2
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ret i1 %r
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}
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define i1 @rol_ne(i8 %x, i8 %y, i8 %z) {
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; CHECK-LABEL: @rol_ne(
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; CHECK-NEXT: [[R:%.*]] = icmp ne i8 [[X:%.*]], [[Y:%.*]]
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; CHECK-NEXT: ret i1 [[R]]
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;
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%f = tail call i8 @llvm.fshl.i8(i8 %x, i8 %x, i8 %z)
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%f2 = tail call i8 @llvm.fshl.i8(i8 %y, i8 %y, i8 %z)
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%r = icmp ne i8 %f, %f2
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ret i1 %r
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}
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define i1 @ror_eq(i8 %x, i8 %y, i8 %z) {
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; CHECK-LABEL: @ror_eq(
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; CHECK-NEXT: [[R:%.*]] = icmp eq i8 [[X:%.*]], [[Y:%.*]]
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; CHECK-NEXT: ret i1 [[R]]
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;
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%f = tail call i8 @llvm.fshr.i8(i8 %x, i8 %x, i8 %z)
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%f2 = tail call i8 @llvm.fshr.i8(i8 %y, i8 %y, i8 %z)
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%r = icmp eq i8 %f, %f2
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ret i1 %r
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}
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define i1 @ror_ne(i8 %x, i8 %y, i8 %z) {
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; CHECK-LABEL: @ror_ne(
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; CHECK-NEXT: [[R:%.*]] = icmp ne i8 [[X:%.*]], [[Y:%.*]]
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; CHECK-NEXT: ret i1 [[R]]
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;
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%f = tail call i8 @llvm.fshr.i8(i8 %x, i8 %x, i8 %z)
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%f2 = tail call i8 @llvm.fshr.i8(i8 %y, i8 %y, i8 %z)
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%r = icmp ne i8 %f, %f2
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ret i1 %r
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}
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define i1 @rol_eq_use(i8 %x, i8 %y, i8 %z) {
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; CHECK-LABEL: @rol_eq_use(
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; CHECK-NEXT: [[F:%.*]] = tail call i8 @llvm.fshl.i8(i8 [[X:%.*]], i8 [[X]], i8 [[Z:%.*]])
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; CHECK-NEXT: call void @use(i8 [[F]])
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; CHECK-NEXT: [[R:%.*]] = icmp eq i8 [[X]], [[Y:%.*]]
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; CHECK-NEXT: ret i1 [[R]]
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;
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%f = tail call i8 @llvm.fshl.i8(i8 %x, i8 %x, i8 %z)
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call void @use(i8 %f)
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%f2 = tail call i8 @llvm.fshl.i8(i8 %y, i8 %y, i8 %z)
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%r = icmp eq i8 %f, %f2
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ret i1 %r
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}
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define i1 @rol_eq_uses(i8 %x, i8 %y, i8 %z) {
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; CHECK-LABEL: @rol_eq_uses(
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; CHECK-NEXT: [[F:%.*]] = tail call i8 @llvm.fshl.i8(i8 [[X:%.*]], i8 [[X]], i8 [[Z:%.*]])
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; CHECK-NEXT: call void @use(i8 [[F]])
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; CHECK-NEXT: [[F2:%.*]] = tail call i8 @llvm.fshl.i8(i8 [[Y:%.*]], i8 [[Y]], i8 [[Z]])
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; CHECK-NEXT: call void @use(i8 [[F2]])
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; CHECK-NEXT: [[R:%.*]] = icmp eq i8 [[X]], [[Y]]
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; CHECK-NEXT: ret i1 [[R]]
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;
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%f = tail call i8 @llvm.fshl.i8(i8 %x, i8 %x, i8 %z)
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call void @use(i8 %f)
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%f2 = tail call i8 @llvm.fshl.i8(i8 %y, i8 %y, i8 %z)
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call void @use(i8 %f2)
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%r = icmp eq i8 %f, %f2
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ret i1 %r
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}
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define <2 x i1> @rol_eq_vec(<2 x i5> %x, <2 x i5> %y, <2 x i5> %z) {
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; CHECK-LABEL: @rol_eq_vec(
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; CHECK-NEXT: [[R:%.*]] = icmp eq <2 x i5> [[X:%.*]], [[Y:%.*]]
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; CHECK-NEXT: ret <2 x i1> [[R]]
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;
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%f = tail call <2 x i5> @llvm.fshl.v2i5(<2 x i5> %x, <2 x i5> %x, <2 x i5> %z)
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%f2 = tail call <2 x i5> @llvm.fshl.v2i5(<2 x i5> %y, <2 x i5> %y, <2 x i5> %z)
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%r = icmp eq <2 x i5> %f, %f2
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ret <2 x i1> %r
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}
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define <2 x i1> @ror_eq_vec(<2 x i5> %x, <2 x i5> %y, <2 x i5> %z) {
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; CHECK-LABEL: @ror_eq_vec(
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; CHECK-NEXT: [[R:%.*]] = icmp eq <2 x i5> [[X:%.*]], [[Y:%.*]]
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; CHECK-NEXT: ret <2 x i1> [[R]]
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;
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%f = tail call <2 x i5> @llvm.fshr.v2i5(<2 x i5> %x, <2 x i5> %x, <2 x i5> %z)
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%f2 = tail call <2 x i5> @llvm.fshr.v2i5(<2 x i5> %y, <2 x i5> %y, <2 x i5> %z)
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%r = icmp eq <2 x i5> %f, %f2
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ret <2 x i1> %r
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}
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define i1 @rol_eq_cst(i8 %x) {
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; CHECK-LABEL: @rol_eq_cst(
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; CHECK-NEXT: [[R:%.*]] = icmp eq i8 [[X:%.*]], 64
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; CHECK-NEXT: ret i1 [[R]]
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;
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%f = tail call i8 @llvm.fshl.i8(i8 %x, i8 %x, i8 3)
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%r = icmp eq i8 %f, 2
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ret i1 %r
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}
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define i1 @rol_ne_cst(i8 %x) {
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; CHECK-LABEL: @rol_ne_cst(
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; CHECK-NEXT: [[R:%.*]] = icmp ne i8 [[X:%.*]], 64
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; CHECK-NEXT: ret i1 [[R]]
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;
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%f = tail call i8 @llvm.fshl.i8(i8 %x, i8 %x, i8 3)
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%r = icmp ne i8 %f, 2
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ret i1 %r
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}
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define i1 @rol_eq_cst_use(i8 %x) {
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; CHECK-LABEL: @rol_eq_cst_use(
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; CHECK-NEXT: [[F:%.*]] = tail call i8 @llvm.fshl.i8(i8 [[X:%.*]], i8 [[X]], i8 3)
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; CHECK-NEXT: call void @use(i8 [[F]])
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; CHECK-NEXT: [[R:%.*]] = icmp eq i8 [[X]], 64
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; CHECK-NEXT: ret i1 [[R]]
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;
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%f = tail call i8 @llvm.fshl.i8(i8 %x, i8 %x, i8 3)
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call void @use(i8 %f)
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%r = icmp eq i8 %f, 2
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ret i1 %r
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}
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define i1 @ror_eq_cst(i8 %x) {
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; CHECK-LABEL: @ror_eq_cst(
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; CHECK-NEXT: [[R:%.*]] = icmp eq i8 [[X:%.*]], 12
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; CHECK-NEXT: ret i1 [[R]]
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;
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%f = tail call i8 @llvm.fshr.i8(i8 %x, i8 %x, i8 2)
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%r = icmp eq i8 %f, 3
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ret i1 %r
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}
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define i1 @ror_ne_cst(i8 %x) {
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; CHECK-LABEL: @ror_ne_cst(
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; CHECK-NEXT: [[R:%.*]] = icmp ne i8 [[X:%.*]], 12
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; CHECK-NEXT: ret i1 [[R]]
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;
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%f = tail call i8 @llvm.fshr.i8(i8 %x, i8 %x, i8 2)
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%r = icmp ne i8 %f, 3
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ret i1 %r
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}
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define <2 x i1> @rol_eq_cst_vec(<2 x i5> %x) {
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; CHECK-LABEL: @rol_eq_cst_vec(
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; CHECK-NEXT: [[R:%.*]] = icmp eq <2 x i5> [[X:%.*]], <i5 8, i5 8>
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; CHECK-NEXT: ret <2 x i1> [[R]]
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;
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%f = tail call <2 x i5> @llvm.fshl.v2i5(<2 x i5> %x, <2 x i5> %x, <2 x i5> <i5 3, i5 3>)
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%r = icmp eq <2 x i5> %f, <i5 2, i5 2>
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ret <2 x i1> %r
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}
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define <2 x i1> @rol_eq_cst_undef(<2 x i5> %x) {
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; CHECK-LABEL: @rol_eq_cst_undef(
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; CHECK-NEXT: [[F:%.*]] = tail call <2 x i5> @llvm.fshl.v2i5(<2 x i5> [[X:%.*]], <2 x i5> [[X]], <2 x i5> <i5 3, i5 3>)
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; CHECK-NEXT: [[R:%.*]] = icmp eq <2 x i5> [[F]], <i5 2, i5 undef>
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; CHECK-NEXT: ret <2 x i1> [[R]]
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;
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%f = tail call <2 x i5> @llvm.fshl.v2i5(<2 x i5> %x, <2 x i5> %x, <2 x i5> <i5 3, i5 3>)
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%r = icmp eq <2 x i5> %f, <i5 2, i5 undef>
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ret <2 x i1> %r
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}
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; negative test - not a rotate
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define i1 @no_rotate(i8 %x, i8 %y, i8 %z) {
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; CHECK-LABEL: @no_rotate(
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; CHECK-NEXT: [[F:%.*]] = tail call i8 @llvm.fshl.i8(i8 [[X:%.*]], i8 [[Y:%.*]], i8 [[Z:%.*]])
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; CHECK-NEXT: [[F2:%.*]] = tail call i8 @llvm.fshl.i8(i8 [[Y]], i8 [[Y]], i8 [[Z]])
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; CHECK-NEXT: [[R:%.*]] = icmp eq i8 [[F]], [[F2]]
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; CHECK-NEXT: ret i1 [[R]]
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;
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%f = tail call i8 @llvm.fshl.i8(i8 %x, i8 %y, i8 %z)
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%f2 = tail call i8 @llvm.fshl.i8(i8 %y, i8 %y, i8 %z)
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%r = icmp eq i8 %f, %f2
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ret i1 %r
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}
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; negative test - wrong predicate
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define i1 @wrong_pred(i8 %x, i8 %y, i8 %z) {
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; CHECK-LABEL: @wrong_pred(
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; CHECK-NEXT: [[F:%.*]] = tail call i8 @llvm.fshl.i8(i8 [[X:%.*]], i8 [[X]], i8 [[Z:%.*]])
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; CHECK-NEXT: [[F2:%.*]] = tail call i8 @llvm.fshl.i8(i8 [[Y:%.*]], i8 [[Y]], i8 [[Z]])
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; CHECK-NEXT: [[R:%.*]] = icmp ult i8 [[F]], [[F2]]
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; CHECK-NEXT: ret i1 [[R]]
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;
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%f = tail call i8 @llvm.fshl.i8(i8 %x, i8 %x, i8 %z)
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%f2 = tail call i8 @llvm.fshl.i8(i8 %y, i8 %y, i8 %z)
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%r = icmp ult i8 %f, %f2
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ret i1 %r
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}
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; negative test - rotate amounts mismatch
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define i1 @amounts_mismatch(i8 %x, i8 %y, i8 %z, i8 %w) {
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; CHECK-LABEL: @amounts_mismatch(
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; CHECK-NEXT: [[F:%.*]] = tail call i8 @llvm.fshl.i8(i8 [[X:%.*]], i8 [[X]], i8 [[Z:%.*]])
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; CHECK-NEXT: [[F2:%.*]] = tail call i8 @llvm.fshl.i8(i8 [[Y:%.*]], i8 [[Y]], i8 [[W:%.*]])
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; CHECK-NEXT: [[R:%.*]] = icmp eq i8 [[F]], [[F2]]
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; CHECK-NEXT: ret i1 [[R]]
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;
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%f = tail call i8 @llvm.fshl.i8(i8 %x, i8 %x, i8 %z)
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%f2 = tail call i8 @llvm.fshl.i8(i8 %y, i8 %y, i8 %w)
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%r = icmp eq i8 %f, %f2
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ret i1 %r
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}
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; negative test - wrong predicate
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define i1 @wrong_pred2(i8 %x) {
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; CHECK-LABEL: @wrong_pred2(
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; CHECK-NEXT: [[F:%.*]] = call i8 @llvm.fshl.i8(i8 [[X:%.*]], i8 [[X]], i8 5)
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; CHECK-NEXT: [[R:%.*]] = icmp ugt i8 [[F]], 2
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; CHECK-NEXT: ret i1 [[R]]
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;
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%f = tail call i8 @llvm.fshr.i8(i8 %x, i8 %x, i8 27)
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%r = icmp ugt i8 %f, 2
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ret i1 %r
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}
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