163 lines
6.2 KiB
LLVM
163 lines
6.2 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -passes=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 void @use.i8(i8)
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define i1 @cmpeq_rorr_to_rorl(i8 %x, i8 %C) {
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; CHECK-LABEL: @cmpeq_rorr_to_rorl(
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; CHECK-NEXT: [[TMP1:%.*]] = call i8 @llvm.fshl.i8(i8 [[X:%.*]], i8 [[X]], i8 [[C:%.*]])
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; CHECK-NEXT: [[R:%.*]] = icmp eq i8 [[TMP1]], [[X]]
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; CHECK-NEXT: ret i1 [[R]]
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;
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%x_rorr = call i8 @llvm.fshr.i8(i8 %x, i8 %x, i8 %C)
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%r = icmp eq i8 %x_rorr, %x
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ret i1 %r
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}
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define i1 @cmpeq_rorr_to_rorl_non_equality_fail(i8 %x, i8 %C) {
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; CHECK-LABEL: @cmpeq_rorr_to_rorl_non_equality_fail(
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; CHECK-NEXT: [[X_RORR:%.*]] = call i8 @llvm.fshr.i8(i8 [[X:%.*]], i8 [[X]], i8 [[C:%.*]])
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; CHECK-NEXT: [[R:%.*]] = icmp ult i8 [[X_RORR]], [[X]]
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; CHECK-NEXT: ret i1 [[R]]
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;
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%x_rorr = call i8 @llvm.fshr.i8(i8 %x, i8 %x, i8 %C)
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%r = icmp ult i8 %x_rorr, %x
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ret i1 %r
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}
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define i1 @cmpeq_rorr_to_rorl_cmp_against_wrong_val_fail(i8 %x, i8 %C) {
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; CHECK-LABEL: @cmpeq_rorr_to_rorl_cmp_against_wrong_val_fail(
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; CHECK-NEXT: [[X_RORR:%.*]] = call i8 @llvm.fshr.i8(i8 [[X:%.*]], i8 [[X]], i8 [[C:%.*]])
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; CHECK-NEXT: [[R:%.*]] = icmp ult i8 [[X_RORR]], [[C]]
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; CHECK-NEXT: ret i1 [[R]]
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;
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%x_rorr = call i8 @llvm.fshr.i8(i8 %x, i8 %x, i8 %C)
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%r = icmp ult i8 %x_rorr, %C
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ret i1 %r
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}
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define i1 @cmpeq_rorr_to_rorl_non_ror_fail(i8 %x, i8 %C) {
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; CHECK-LABEL: @cmpeq_rorr_to_rorl_non_ror_fail(
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; CHECK-NEXT: [[X_RORR:%.*]] = call i8 @llvm.fshr.i8(i8 [[X:%.*]], i8 [[C:%.*]], i8 [[C]])
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; CHECK-NEXT: [[R:%.*]] = icmp ult i8 [[X_RORR]], [[X]]
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; CHECK-NEXT: ret i1 [[R]]
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;
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%x_rorr = call i8 @llvm.fshr.i8(i8 %x, i8 %C, i8 %C)
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%r = icmp ult i8 %x_rorr, %x
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ret i1 %r
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}
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define i1 @cmpeq_rorr_to_rorl_multiuse_fail(i8 %x, i8 %C) {
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; CHECK-LABEL: @cmpeq_rorr_to_rorl_multiuse_fail(
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; CHECK-NEXT: [[X_RORR:%.*]] = call i8 @llvm.fshr.i8(i8 [[X:%.*]], i8 [[X]], i8 [[C:%.*]])
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; CHECK-NEXT: call void @use.i8(i8 [[X_RORR]])
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; CHECK-NEXT: [[R:%.*]] = icmp eq i8 [[X_RORR]], [[X]]
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; CHECK-NEXT: ret i1 [[R]]
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;
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%x_rorr = call i8 @llvm.fshr.i8(i8 %x, i8 %x, i8 %C)
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call void @use.i8(i8 %x_rorr)
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%r = icmp eq i8 %x_rorr, %x
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ret i1 %r
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}
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define i1 @cmpne_rorr_rorr(i8 %x, i8 %C0, i8 %C1) {
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; CHECK-LABEL: @cmpne_rorr_rorr(
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; CHECK-NEXT: [[TMP1:%.*]] = sub i8 [[C0:%.*]], [[C1:%.*]]
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; CHECK-NEXT: [[TMP2:%.*]] = call i8 @llvm.fshl.i8(i8 [[X:%.*]], i8 [[X]], i8 [[TMP1]])
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; CHECK-NEXT: [[R:%.*]] = icmp ne i8 [[TMP2]], [[X]]
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; CHECK-NEXT: ret i1 [[R]]
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;
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%x_rorr0 = call i8 @llvm.fshr.i8(i8 %x, i8 %x, i8 %C0)
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%x_rorr1 = call i8 @llvm.fshr.i8(i8 %x, i8 %x, i8 %C1)
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%r = icmp ne i8 %x_rorr0, %x_rorr1
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ret i1 %r
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}
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define i1 @cmpne_rorrX_rorrY(i8 %x, i8 %y, i8 %C0, i8 %C1) {
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; CHECK-LABEL: @cmpne_rorrX_rorrY(
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; CHECK-NEXT: [[TMP1:%.*]] = sub i8 [[C0:%.*]], [[C1:%.*]]
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; CHECK-NEXT: [[TMP2:%.*]] = call i8 @llvm.fshr.i8(i8 [[X:%.*]], i8 [[X]], i8 [[TMP1]])
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; CHECK-NEXT: [[R:%.*]] = icmp ne i8 [[TMP2]], [[Y:%.*]]
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; CHECK-NEXT: ret i1 [[R]]
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;
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%x_rorr0 = call i8 @llvm.fshr.i8(i8 %x, i8 %x, i8 %C0)
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%y_rorr1 = call i8 @llvm.fshr.i8(i8 %y, i8 %y, i8 %C1)
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%r = icmp ne i8 %x_rorr0, %y_rorr1
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ret i1 %r
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}
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define i1 @cmpne_rorr_rorr_non_equality_fail(i8 %x, i8 %C0, i8 %C1) {
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; CHECK-LABEL: @cmpne_rorr_rorr_non_equality_fail(
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; CHECK-NEXT: [[X_RORR0:%.*]] = call i8 @llvm.fshr.i8(i8 [[X:%.*]], i8 [[X]], i8 [[C0:%.*]])
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; CHECK-NEXT: [[X_RORR1:%.*]] = call i8 @llvm.fshr.i8(i8 [[X]], i8 [[X]], i8 [[C1:%.*]])
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; CHECK-NEXT: [[R:%.*]] = icmp sge i8 [[X_RORR0]], [[X_RORR1]]
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; CHECK-NEXT: ret i1 [[R]]
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;
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%x_rorr0 = call i8 @llvm.fshr.i8(i8 %x, i8 %x, i8 %C0)
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%x_rorr1 = call i8 @llvm.fshr.i8(i8 %x, i8 %x, i8 %C1)
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%r = icmp sge i8 %x_rorr0, %x_rorr1
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ret i1 %r
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}
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define i1 @cmpne_rorr_rorl_todo_mismatch_C(i8 %x, i8 %C0, i8 %C1) {
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; CHECK-LABEL: @cmpne_rorr_rorl_todo_mismatch_C(
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; CHECK-NEXT: [[X_RORR0:%.*]] = call i8 @llvm.fshr.i8(i8 [[X:%.*]], i8 [[X]], i8 [[C0:%.*]])
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; CHECK-NEXT: [[X_RORL1:%.*]] = call i8 @llvm.fshl.i8(i8 [[X]], i8 [[X]], i8 3)
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; CHECK-NEXT: [[R:%.*]] = icmp ne i8 [[X_RORR0]], [[X_RORL1]]
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; CHECK-NEXT: ret i1 [[R]]
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;
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%x_rorr0 = call i8 @llvm.fshr.i8(i8 %x, i8 %x, i8 %C0)
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%x_rorl1 = call i8 @llvm.fshl.i8(i8 %x, i8 %x, i8 3)
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%r = icmp ne i8 %x_rorr0, %x_rorl1
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ret i1 %r
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}
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define i1 @cmpne_rorl_rorl_multiuse1_fail(i8 %x, i8 %C0) {
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; CHECK-LABEL: @cmpne_rorl_rorl_multiuse1_fail(
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; CHECK-NEXT: [[X_RORL0:%.*]] = call i8 @llvm.fshl.i8(i8 [[X:%.*]], i8 [[X]], i8 [[C0:%.*]])
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; CHECK-NEXT: [[X_RORL1:%.*]] = call i8 @llvm.fshl.i8(i8 [[X]], i8 [[X]], i8 3)
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; CHECK-NEXT: call void @use.i8(i8 [[X_RORL1]])
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; CHECK-NEXT: [[R:%.*]] = icmp ne i8 [[X_RORL0]], [[X_RORL1]]
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; CHECK-NEXT: ret i1 [[R]]
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;
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%x_rorl0 = call i8 @llvm.fshl.i8(i8 %x, i8 %x, i8 %C0)
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%x_rorl1 = call i8 @llvm.fshl.i8(i8 %x, i8 %x, i8 3)
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call void @use.i8(i8 %x_rorl1)
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%r = icmp ne i8 %x_rorl0, %x_rorl1
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ret i1 %r
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}
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define i1 @cmpeq_rorlXC_rorlYC_multiuse1(i8 %x, i8 %y) {
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; CHECK-LABEL: @cmpeq_rorlXC_rorlYC_multiuse1(
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; CHECK-NEXT: [[Y_RORL1:%.*]] = call i8 @llvm.fshl.i8(i8 [[Y:%.*]], i8 [[Y]], i8 3)
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; CHECK-NEXT: call void @use.i8(i8 [[Y_RORL1]])
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; CHECK-NEXT: [[TMP1:%.*]] = call i8 @llvm.fshl.i8(i8 [[X:%.*]], i8 [[X]], i8 3)
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; CHECK-NEXT: [[R:%.*]] = icmp eq i8 [[TMP1]], [[Y]]
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; CHECK-NEXT: ret i1 [[R]]
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;
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%x_rorl0 = call i8 @llvm.fshl.i8(i8 %x, i8 %x, i8 6)
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%y_rorl1 = call i8 @llvm.fshl.i8(i8 %y, i8 %y, i8 3)
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call void @use.i8(i8 %y_rorl1)
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%r = icmp eq i8 %x_rorl0, %y_rorl1
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ret i1 %r
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}
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define i1 @cmpeq_rorlC_rorlC_multiuse2_fail(i8 %x) {
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; CHECK-LABEL: @cmpeq_rorlC_rorlC_multiuse2_fail(
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; CHECK-NEXT: [[X_RORL0:%.*]] = call i8 @llvm.fshl.i8(i8 [[X:%.*]], i8 [[X]], i8 6)
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; CHECK-NEXT: [[X_RORL1:%.*]] = call i8 @llvm.fshl.i8(i8 [[X]], i8 [[X]], i8 3)
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; CHECK-NEXT: call void @use.i8(i8 [[X_RORL0]])
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; CHECK-NEXT: call void @use.i8(i8 [[X_RORL1]])
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; CHECK-NEXT: [[R:%.*]] = icmp eq i8 [[X_RORL0]], [[X_RORL1]]
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; CHECK-NEXT: ret i1 [[R]]
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;
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%x_rorl0 = call i8 @llvm.fshl.i8(i8 %x, i8 %x, i8 6)
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%x_rorl1 = call i8 @llvm.fshl.i8(i8 %x, i8 %x, i8 3)
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call void @use.i8(i8 %x_rorl0)
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call void @use.i8(i8 %x_rorl1)
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%r = icmp eq i8 %x_rorl0, %x_rorl1
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ret i1 %r
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}
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